AD8450-EVALZ/ADP1972-EVALZ User Guide
UG-845
One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
AD8450/ADP1972 Battery Testing and Formation Evaluation Board
FEATURES
GENERAL DESCRIPTION
Fully functional Li-Ion cell formation and testing similar to
real-world manufacturing equipment
Ability to charge and discharge batteries under constant
current (CC) and constant voltage (CV) control
Energy recycling from discharging battery into dc bus
Full featured system evaluation board based on the
AD8450 and ADP1972
PC software for control and monitoring of system
parameters
Compatible with the system demonstration platform,
SDP-S (EVAL-SDP-CS1Z)
The AD8450-EVALZ/ADP1972-EVALZ evaluation kit is a good
starting point for users building battery formation and test
equipment based on the Analog Devices AD8450 precision
analog front end and controller and the ADP1972 buck or boost
pulse-width modulation (PWM) controller. The system includes
an analog control board and a power stage board.
EQUIPMENT NEEDED
Bench power supply, 12 V dc (current depending on desired
battery charge rate)
Test battery
EVALUATION KIT CONTENTS
Analog control board
Power stage board
SDP-S board for data transfer to PC
Standard USB A to Mini-B USB cable
Printed user guide
Evaluation kit software CD
Business card with Analog Devices, Inc., website address for
software and documentation
HARDWARE REQUIREMENTS
Bench power supply, 12 V dc (current depending on desired
battery charge rate)
Test battery or electronic load
PC running Windows 7
WARNING
When testing this system with lithium-ion (Li-Ion) batteries,
take care not to overcharge or overdischarge the batteries, or to
sink/source more than the maximum current recommended by
the manufacturer of the battery. Exceeding these ratings not
only damages the battery, but can also cause it to explode or
catch fire.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
In addition to the AD8450 and ADP1972, the analog control
board also includes an AD5689R 16-bit, precision digital-toanalog converter (DAC) to set the current and voltage set points,
and an AD7173-8 24-bit, Σ-Δ analog-to-digital converter (ADC)
to monitor the battery voltage and current.
The board includes built-in voltage regulators so that it can be
powered either from the power stage board or directly from a
12 V dc through a screw terminal connector.
The analog control board connects to the Analog Devices
system demonstration platform—serial (SDP-S) board through
a 120-pin connector. The SDP-S board connects to the user
interface software through the USB port, allowing the user to
set the current and voltage set point as well as the mode of
operation (charge/discharge). In addition, the user can monitor
the battery voltage and current by reading the data output from
the AD7173-8.
The analog control board connects to the power stage board
through a 32-pin header. This modular approach allows the
user to design and test their own power stage boards, designed
for the current output range in their end applications, with the
analog control board of this reference design.
The power stage board supports charge and discharge currents
of up to 20 A. It includes the power MOSFETs, inductor, and
input and output capacitors required to implement a buck or
boost regulator, depending on the operating mode.
Full specifications on the ADP1972 and AD8450 are available in
the product data sheets, which should be consulted in conjunction
with this user guide when working with the evaluation kit.
The AD8451 can also be installed in the AD8450 socket with
minimal changes.
Rev. 0 | Page 1 of 33
UG-845
AD8450-EVALZ/ADP1972-EVALZ User Guide
TABLE OF CONTENTS
Features .............................................................................................. 1 Evaluation Board Software ...............................................................7 Equipment Needed ........................................................................... 1 Installing the Software ..................................................................7 Evaluation Kit Contents ................................................................... 1 Installation Steps ...........................................................................7 Hardware Requirements .................................................................. 1 Board Operation and Connection Sequence ..............................8 Warning ............................................................................................. 1 Running the Software with the Hardware Connected .............9 General Description ......................................................................... 1 Software Operation ........................................................................ 10 Revision History ............................................................................... 2 Description of Main Window ................................................... 10 Simplified Evaluation Board Block Diagram ................................ 3 Configuration Tab ...................................................................... 11 Evaluation Board Photograph......................................................... 4 Evaluation Board Schematics—Power Stage Board................... 13 Evaluation Board Hardware ............................................................ 5 Evaluation Board Schematics—Analog Control Board ............ 19 Setting Up the Evaluation System .............................................. 5 Troubleshooting .............................................................................. 32 Powering the System .................................................................... 5 Software ....................................................................................... 32 AD8450 Compensation Networks ............................................. 5 Hardware ..................................................................................... 32 Serial Interface .............................................................................. 5 Products on this Evaluation System ............................................. 33 Power Stage Board Description .................................................. 6 Related Links ............................................................................... 33 Analog Control Board Description............................................ 6 REVISION HISTORY
5/16—Revision 0: Initial Version
Rev. 0 | Page 2 of 33
AD8450-EVALZ/ADP1972-EVALZ User Guide
UG-845
SIMPLIFIED EVALUATION BOARD BLOCK DIAGRAM
POWER BOARD
DC_LINK
POWER
ADP2441
GND
BUS_PWR
12V
AUX
10V
+
DRIVER
ADuM7223
DH
DL
CL
CS+
CS–
VS+
VS–
AGND
COMP
POWER
ADP7102
ADM8829
BUCK AND BOOST
PWM CONTROLLER
ADP1972
EEPROM
ANALOG BOARD
EN
V AND I SENSE
CC AND CV CONTROLLER
AD8450
FAULT
FAULT
MODE
ADC
AD7173-8
DAC
AD5689R
SPI
I2C
USB
SDP-S BOARD
13268-002
12V_AUX
Figure 1.
Rev. 0 | Page 3 of 33
UG-845
AD8450-EVALZ/ADP1972-EVALZ User Guide
13268-001
EVALUATION BOARD PHOTOGRAPH
Figure 2. Power Stage Board (Left) and Analog Control Board with SDP-S Attached (Right)
Rev. 0 | Page 4 of 33
AD8450-EVALZ/ADP1972-EVALZ User Guide
UG-845
EVALUATION BOARD HARDWARE
SETTING UP THE EVALUATION SYSTEM
SERIAL INTERFACE
Figure 26 to Figure 29 show the analog control board schematic,
and Figure 17 shows the power stage board schematic.
The evaluation system uses the SPI interface on the SDP-S board
to read the current and voltage ADCs, and to set the current and
voltage set points with the AD5689R DAC.
The analog control board includes the AD8450 (U1), the
ADP1972 (U2), the AD7173-8 24-bit Σ-Δ ADC (U5), and the
AD5689R 16-bit DAC (U8).
The 32-pin header connector mates with the power stage board
and includes the PWM control signals for the MOSFET drivers,
as well as the battery voltage, the current signals, and the supply
voltage for the analog control board. The modular approach of
the system allows users to use the analog control board with
their custom design power stage. Table 1 lists the header pin
names and functionalities.
The power stage board includes an ADuM7223 MOFSET driver
(U1), an ADP2441 buck regulator (U2) to power the MOFSET
driver, a high-side and low-side power MOSFET, parallel Schottky
diodes, and input/output capacitors.
Connect the boards as shown in Figure 2.
POWERING THE SYSTEM
The evaluation system requires power from an external dc
power source. The nominal input voltage is 12 V, connected
through the banana input terminals labeled J2 and J4 on the
power stage board. The input current depends on the desired
load current (that is, battery charge current). To run the board
at the rated 20 A charge current into a 5 V load, the input 12 V
power supply must be capable of delivering at least 9.5 A.
Table 1. 32-Pin Board to Board Connector Pinout
Pin No.
1
2, 11 to 16, 18,
19, 20 to 24
3
4
5
6
Name
BUS_PWR
DGND
Description
Supply rail from power stage board
Digital ground
+12V
DH
DL
MODE
7
8
9
10
EN_PWR
Fault
CL
CL_SENSE
17
33 to 36
37
SYNC_PWR
AGND
CS+
38
CS−
39
VS+
40
VS−
Supply rail to power stage board
High-side driver signal
Low-side driver signal
Selects between charge/discharge
mode
Enable signal for power stage
Fault detection from ADP1972
Current-limit sense line to ADP1972
Current-limit ground sense line to
ADP1972
Sync pin to and from ADP1972
Analog ground
Sense line from current sense
resistor
Sense line from current sense
resistor
Sense line from battery positive (+)
terminal
Sense line from battery negative (−)
terminal
The analog control board receives power through the 32-pin
connector. However, this board also includes the J3 screw
terminal connector, if the user wants to power the board
separately. To power the analog control board independently
of the power stage board, remove Resistor R108 and populate a
0 Ω jumper at R130.
To turn on the board, apply power as described previously and
move Switch SW1 on the power stage board to the on position.
AD8450 COMPENSATION NETWORKS
The evaluation system ships configured for connection to a
Chroma 63600 series electronic load. If the electronic load of
the user has a different response, or if the user wants to use the
system with a rechargeable battery, adjust the compensation values
in each of the four AD8450/AD8451 control loops to ensure
system stability. Use the online AD8450/AD8451 compensator
design tool at http://analogplayground.com/AD8450, and see
the AN-1319 for detailed analysis.
Rev. 0 | Page 5 of 33
UG-845
AD8450-EVALZ/ADP1972-EVALZ User Guide
POWER STAGE BOARD DESCRIPTION
ANALOG CONTROL BOARD DESCRIPTION
Figure 17 shows the power stage board schematic. The bench
power supply connects to the power stage board through the
J2 (+) and J4 (−) banana jacks. The J3 (+) and J4 (−) banana
jacks are the regulated charge/discharge terminals, and connect
to an electronic load or battery.
The analog control board includes the ADP1972, the AD8450/
AD8451, a DAC to configure the set points, and an ADC to
monitor the current and voltage.
The power stage includes input capacitors, a low-side and highside MOSFET, an inductor, and output capacitors. Depending
on the mode of operation, the ADP1972 drives the power stage
either in step-down (buck) or step-up (boost) mode. The board
includes pads for up to two parallel MOSFETs and up to two
parallel dual diodes. The ADP1972 drives the power stage in
nonsynchronous mode. Therefore, having external, low forward
voltage diodes in parallel with the MOSFETs is very important
for operation at high efficiency.
The power stage board includes a 2 mΩ sense resistor (R1) for
measuring the output current to the electronic load or battery.
The ADuM7223 translates the 5 V level PWM signals from the
ADP1972 into low impedance, 10 V drive signals for the
MOSFETs. An auxiliary step-down regulator based on the
ADP2441 generates the 10 V rail for the MOSFET driver from
the main input rail.
The analog control board includes an ADP7102 linear regulator
to generate 5 V, and an ADM8829 switched capacitor inverter
that generates −5 V for the AD8450/AD8451 so that it can
measure and output voltages close to 0 V.
The current sense programmable gain instrumentation amplifier
(PGIA) of the AD8450 is configured for a gain of 66 by
populating R18 and R29. Table 2 shows how to configure the
board to achieve other gains. With a gain of 66, a 20 A output
current results in an output voltage of 2.64 V at TP4 (ISMEA pin).
The voltage sense programmable gain different amplifier
(PGDA) is configured for a gain of 0.8 by populating R41 and
R42. Table 3 shows how to configure the board for other
possible gains. With a gain of 0.8, a 5 V battery voltage results in
a 4 V output at TP1 (BVMEA pin).
Table 2. PGIA Gain Configuration
Gain
26
66
133
200
Resistors with 0 Ω jumpers
R19, R30
R18, R29
R17, R28
R16, R27
Table 3. PGDA Gain Configuration
Gain
0.8
0.4
0.27
0.2
Resistors with 0 Ω jumpers
R41, R42
R40, R43
R39, R44
R38, R45
The AD7173-8 ADC measures the voltage and current signals
and reports the values to the user interface software through the
SDP-S interface. The full-scale input range of the AD7173-8 is
5 V. The AD5689R DAC Output A configures the constant
current setpoint, and Output B sets the constant voltage
setpoint. The DAC output range is also from 0 V to 5 V. Given
the current and voltage gain settings of the AD8450/AD8451,
the current and voltage setpoints can be calculated as follows:
Constant_Current_Setpoint = VDAC_A/(PGIA_GAIN × 0.003)
Constant_Current_Setpoint = VDAC_B/(PGDA_GAIN)
Rev. 0 | Page 6 of 33
AD8450-EVALZ/ADP1972-EVALZ User Guide
UG-845
EVALUATION BOARD SOFTWARE
INSTALLING THE SOFTWARE
The evaluation board software can be downloaded from the
AD8450, AD8451, and ADP1972 product pages on the Analog
Devices website at www.analog.com.
1.
2.
3.
4.
5.
Start the Windows® operating system and download the
software from the relevant product page on the Analog
Devices website at www.analog.com.
Unzip the downloaded file. Run the setup.exe file.
After installation is completed, plug the SDP-S board into
the PC using a USB cable, and power up the evaluation
board as described in the Powering the System section.
Launch the software.
When the software detects the evaluation board, proceed
through any dialog boxes that appear to finalize the
installation.
13268-004
Install the software prior to connecting the SDP-S board to the
USB port of the PC to ensure that the SDP-S board is recognized
when it connects to the PC.
Figure 4. Click Next >> to Install Software
The default location for the software is C:\Program Files (x86)\
Analog Devices\AD8450-ADP1972_SystemDemo.
This location contains the executable software and support files.
Proceed through the installation, allowing the software and
drivers to be placed in the appropriate locations. Connect the
SDP-S board to the PC only after the software and drivers have
been installed.
13268-005
INSTALLATION STEPS
Figure 5. Bar Showing Installation Progress
13268-003
13268-006
There are two sequences to the software installation. The first
sequence installs the software related to the evaluation board, as
shown in Figure 3 to Figure 6.
Figure 3. Choose Folder Location (Default Folder Shown)
Rev. 0 | Page 7 of 33
Figure 6. Installation Complete, Click Next >> to Finish
UG-845
AD8450-EVALZ/ADP1972-EVALZ User Guide
13268-007
The second sequence of the software installation installs the
system demonstration platform (SDP) drivers for the SDP-S
board (see Figure 7 to Figure 10). These drivers must be
installed for the evaluation board to function correctly.
13268-010
Figure 7. Installation for SDP Drivers Starting
Figure 10. Click Close to Complete Installation
13268-008
When the SDP-S board is first plugged into the PC via the USB
cable provided, allow the new Found Hardware Wizard to run.
Check that the drivers and the board are connected correctly by
looking at the Device Manager of the PC. If connected correctly,
the Analog Devices System Development Platform SDP-S
appears under ADI Development Tools (see Figure 11).
13268-011
Figure 8. Click Next > to Install the SDP Drivers
Figure 11. Device Manager
BOARD OPERATION AND CONNECTION SEQUENCE
The following is the board operation and connection sequence:
1.
13268-009
2.
3.
4.
5.
Figure 9. Choose Install Location (Default Folder Shown)
6.
Rev. 0 | Page 8 of 33
Connect the SDP-S controller board to the evaluation
board with the J4 connector (screw into place as required).
Power the board with appropriate supply as described in
the Powering the System section.
Connect an electronic load or battery.
Connect the board to the PC with the USB cable.
To launch the software, click Start > All Programs >
Analog Devices > AD8450 System Demo > AD8450ADP1972 Demo.
Configure the set points and use the software to monitor
the battery state.
AD8450-EVALZ/ADP1972-EVALZ User Guide
RUNNING THE SOFTWARE WITH THE HARDWARE
CONNECTED
UG-845
3.
When the evaluation board is detected, the message in
Figure 13 displays. Click Select to continue.
To run the program, take the following steps:
13268-013
2.
Click Start > All Programs > Analog Devices > AD8450
System Demo > AD8450-ADP1972 Demo.
If the SDP-S board is not connected to the USB port when
the software is launched, a connectivity error displays (see
Figure 12). Connect the evaluation board to the USB port
of the PC, wait a few seconds until the board appears in the
lower section of the window, and click Select (see Figure 12).
Figure 13. Software Detects Evaluation Board
4.
13268-012
1.
Figure 12. SDP-S Board Not Connected to the USB Port
Rev. 0 | Page 9 of 33
The software then connects to the board, and the software
window opens.
UG-845
AD8450-EVALZ/ADP1972-EVALZ User Guide
SOFTWARE OPERATION
When the software launches, the window shown in Figure 14
opens and the software begins communicating with the analog
control board. The software starts with the power stage disabled,
which allows the user to configure the setpoints before any
current flows into the load.
DESCRIPTION OF MAIN WINDOW
The main window shows the system status at a glance. The
system diagram quickly shows whether the system is set to
either charge or discharge mode, and the digital indicators next
to the battery icon and the current icon show the readings for
battery voltage and current.
The Amp-Hours indicator is a simple integrator. It takes the
battery current measurement every 100 ms, calculates the
equivalent amp-hour value, and accumulates the result with
the previous result. This allows the system to measure battery
capacity from the time the battery is enabled until it is fully
charged/discharged, or until the mode setting is changed.
To change the constant current or constant voltage setpoint
values, type the new value into the corresponding field, in units
of amps or volts, respectively, and press the Enter key.
The time data chart shows a strip chart of current and voltage as
the battery charges or discharges.
Figure 15 shows the main window in constant current, discharge
mode.
13268-014
The POWER STAGE OFF button indicates that the system is
disabled. Clicking this button enables the power stage (and the
button changes to POWER STAGE ON). Similarly, the MODE:
CHARGE button indicates that the system is currently in charge
mode. Clicking this button changes the power stage configuration
(the button changes to MODE: DISCHARGE).
Figure 14. ADP1972 + AD8450 System Demo Software Main Window
Rev. 0 | Page 10 of 33
UG-845
13268-015
AD8450-EVALZ/ADP1972-EVALZ User Guide
Figure 15. Software Main Window During Normal Operation
CONFIGURATION TAB
Calibration Controls
Click Configure System to open the configuration tab (see
Figure 16). This tab contains several options described in the
following sections.
The gain correction and offset controls allow the user to
perform system level calibration. The measurements displayed
in the main window are the nominal output from the ADC
scaled with the equation
Sample Timing Controls
Sample Interval sets the rate at which the system updates the
battery voltage and current measurements. The sample interval
is the rate at which the screen updates, and is completely
independent of the analog control loop.
Graphing Sampling Rate Multiple sets the update rate for the
main window as a ratio of the sample interval. For example,
setting the Sample Interval to 1 sec and the Graphing Sample
Rate Multiple to 1 results in chart updates every second. Setting
the Graphing Sampling Rate Multiple to 5 results in graph
updates only every 5 sec.
Output Measurement = (Nominally Scaled Measurement −
Offset Correction) × Gain Correction
where Nominally Scaled Measurement uses the typical values for
the sense resistor, the ADC reference, the AD8450 gain, and so on.
The calibration controls, shown in Figure 16, are as follows.
Current Gain Correction is the gain correction constant for
the current measurement. The default is 1.
Current Offset (A) is the offset correction constant for the
current channel, in units of amps. The default is 0.
Voltage Gain Correction is the gain correction constant for the
voltage measurement. The default is 1.
Voltage Offset (V) is the offset correction constant for the
voltage channel in units of volts. The default is 0.
Rev. 0 | Page 11 of 33
UG-845
AD8450-EVALZ/ADP1972-EVALZ User Guide
Hardware Configuration Controls
As indicated in the main window, the hardware configuration
controls must reflect the actual configuration of the power stage
and analog control boards. If there is a mismatch between the
settings in these controls and the actual hardware configuration,
excessive current can be sourced into (or sunk from) the battery.
Sense Resistor (Ohms) is the nominal value of the sense resistor
on the power stage board. The default is 0.002 Ω (2 mΩ).
Current Sense Gain is the gain setting for the AD8450
programmable gain current sense instrumentation amplifier.
The default value is 66.
Voltage Sense Gain is the gain setting for the AD8450
programmable gain differential voltage sense amplifier.
The default is 0.8.
DAC Range(V) is the nominal DAC output range, with a
default of 5 V.
Clicking Reset Ahr Meter resets the amp-hour counter in the
main window to 0.
13268-016
ADC Range (V) is the nominal ADC input range, with a
default of 5 V.
Figure 16. Configuration Tab
Rev. 0 | Page 12 of 33
R21
10K
R15
82K
1
C22
NC
VIN_AUX
Vin-
J4
Vin+
1
R12
10K
R33
10K
ADP2441
U2
R30-1011602
R19
182K
R30-1011602
EN
COMP
FB
C17 1uF
C15 1uF
680uF
C3
0.30uH
L1
MH2
R18
51K
3
2
1
LED
D13
680uF
C7
Vin+
1
MH1
5V
PG_AUX
270pF
C25
R11
158K
10V_L
R13
118K
PGND
TP11
20A/63VDC
1
2
1
F1
C4
C27
10nF
7
8
9
TP14
12V
10uF
VDU
DH_DRV
TP8
R7
2
2
R5
BSZ019N03LS
2
10K
R6
2
R3
Q4
BSZ019N03LS
10K
2
DH
B240A-E3
D6
SBLB25L30CT
SW
1
2
1
4.7uH
D7
SBLB25L30CT
L2
CL
C31
NC
C8
100uF
Vin+
12V
DL
EN
CL
AGND
C13
100uF
C9
100uF
1
C14
NC
C32
NC
R1
0.002
VS-
VS+
Vo+
R36
NC
R37
NC
1
1
J3
1
1
J12
VS+
TP1
VS+
Vo+
CS-
CS+
R30-1011602
MH4
Jumper
Vin+
12V
10V_L
TP15
1
BZX585-B5V1
D10
5V
R14
330
STANDOFFS
AUXILIARY POWER
10uF
C26
100nF
C24
10uF
10V_L
C23
C18
4.7uF
GND_AUX
2
L3 33uH
VIN_AUX
D9
PMEG4005CT
EN
LSS
C20
10uF
R30 0
PG_AUX
1
TP23
PG_AUX
D11
1PS79SB31
10V_L
DH_DRV
SW
DL_DRV
VDU
C16
10uF
PGND
TP12
DL_DRV
5.1K
TP22
CTRL
1
R23 10
1
2
3
4
5
6
7
C33
NC
5V
R24
5.1K
5.1K
Vin+
R27 56K
R20
R17
5.1K
DL
R10
0.002
Q6
NC
R26
5.1K
C29
10nF
U4
ZR431F01TA
5V
R31 0
R32 0
C34
NC
C21
100nF
CTRL
1
JP3
Short Pin
HALF BRIDGE DRIVER
Q7
2PB1219A
2
Jumper
R16
CTRL
1
J8
ADuM7223
VDDB
VOB
GNDB
VDDA
VOA
GNDA
BSS138PW
Q8
10
9
8
13
12
11
U1
CL-
1
TP10
GND1
VIA
VIB
NC1
DISABLE
NC2
VDD1
CL-
R9
R8
D8
MBR130LSFT1
DL_DRV
5V
EN
R35
0
C28
10nF
FAULT
TP24
CL
R25
5.1K
R22
7.15K
R34
NC
Vo+
ON/OFF
D12
NC
TP13
LOCAL OVP
U3
ZR431F01TA
VS+
1K
C30
100nF
SW1
ON/OFF
R28
R29
5.1K
FAULT
LSS
JP5
Short Pin
TP20
MODE
TP18
SYNC
TP16
DL
GND
CS+
VS+
SYNC
AGND
1
1
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
MODE
SYNC
DL
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
J10
J5
VS-
GND
CSVS-
AGND
DH
MODE
FAULT
CLAGND
Vo-
1
GND
AGND
AGND
DH
1
1
1
TEST POINTS
TP21
AGND
TP19
AGND
TP17
DH
ANALOG BOARD CONNECTOR
09221326921
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
J6
POWER STAGE
J9
Jumper
TP9
VS1
GND
TP27
PGND
J7
C12
DH_DRV
TP6
D2
SW
TP5
CS-
1
10uF
C11
C6
10uF
C5
10uF
Q3
Q2
NC
SBLB25L30CT
SBLB25L30CT
CS+
TP2
1
EN
Q5
BSS138PW
C10
330uF
D4
D3
TP3
1
TP7
R4
10K
BZX585-C15
D5
0.47uF
C2
Q1
BSC030P03NS3
TP26
1
R2
10K
LSS
C1
TP25
C19
10nF
EN
R30-1011602
MH3
PGND
SW
VIN
10uF
10
0.47uF
1
J2
12
1
1
Vin+
3
2
Jumper
1
1
J1
5
AGND
PGOOD
4
VCC
11
FREQ
BST
EP
1
B240A-E3
2
1
TP4
1
SS/TRK
6
1
1
1
Rev. 0 | Page 13 of 33
1
Figure 17. Power Stage Board Schematic
13
2
D1
AD8450-EVALZ/ADP1972-EVALZ User Guide
UG-845
EVALUATION BOARD SCHEMATICS—POWER STAGE BOARD
13268-017
UG-845
AD8450-EVALZ/ADP1972-EVALZ User Guide
Table 4. Power Stage Board Bill of Materials
Reference Designator
C1, C2
C3, C7
C4, C5, C6, C11, C12
C8, C9, C13, C31
C10, C22, C32, C33, C34,
D12, Q2, Q6, R34, R36, R37
C14
C15, C17
C16, C20, C23, C24
C18
C19, C27
C21, C26, C30
C25
C28, C29
D1, D2
D3, D4, D6, D7
D5
D8
D9
D10
D11
D13
F1
J1, J7 to J9
J2 to J5
J6
J10, J12, JP3, JP5
L1
L2
L3
MH1 to MH4
Q1
Q3, Q4
Q5, Q8
Q7
R1
R2, R4, R6, R9, R12, R21, R33
R3, R5, R7, R8
R10
R11
R13
R14
R15
R16, R17, R20, R24, R26, R29
R18
R19
R22
R23
R25
R27
R28
R30 to R32, R35
SW1
TP1 to TP27
U1
U2
U3, U4
Description
0.47 μF/100 V, X7R, MLCC
680 μF/35 V, aluminum electrolytic capacitor
10 μF/50 V, X5R, MLCC
100 μF/6.3 V, X5R, MLCC
10 mm diameter, aluminum solid electrolytic capacitor
Manufacturer
Murata
Panasonic
Murata
Murata
Not applicable
Part No.
GRM21BR72A474KA73
EEVFK1V681Q
GRM32ER61H106KA12
GRM32ER60J107ME20
Not applicable
1000 μF/6.3 V, aluminum solid electrolytic capacitor
1 μF/16 V, X7R, MLCC
10 μF/25 V, X5R, MLCC
4.7 μF/50 V, X5R, MLCC
10 nF/50 V, C0G, MLCC
100 nF/16 V, X7R, MLCC
270 pF/50 V, C0G, MLCC
10 nF/25 V, X7R, MLCC
40 V/2 A Schottky Diode
30 V/12.5 A (per) Schottky rectifier
15 V Zener diode, 5%
30 V/1 A Schottky diode
500 mA, low VF, dual, mega Schottky barrier rectifier
5.1 V Zener diode, 2%
30 V/0.2 A, ultralow VF, mega Schottky diode
SMT, blue LEDs, 1206 package size
20 A, 63 V dc, fast acting fuse
Power connector jumper on PCB
15 A banana jacks, pierced lug terminal
2-row, 32-pin header
Single pad
0.30 μH/33 A inductor
4.7 μH/37 A inductor
33 μH/0.47 A inductor
Standoff, HEX M3, THR, brass, 16 mm
30 V/3 mR/100 A power MOSFET
30 V/1.9 mR/40 A power MOSFET
60 V/1.6 R/0.32 A MOSFET
50 V/0.5 A PNP transistor
2 mΩ, 3637, SMD, 0.1% current sensing resistor
10 kΩ, 0603, SMD, 1% generic resistor
2 Ω, 0603, SMD, 5% generic resistor
2 mΩ, 2512, SMD, 1% current sensing resistor
158 kΩ, 0603, SMD, 1% generic resistor
118 kΩ, 0603, SMD, 1% generic resistor
330 Ω, 0805, SMD, 5% generic resistor
82 kΩ, 0603, SMD, 1% generic resistor
5.1 kΩ, 0603, SMD, 1% generic resistor
51 kΩ, 0603, SMD, 1% generic resistor
182 kΩ, 0603, SMD, 1% generic resistor
715 Ω, 0603, SMD, 1% generic resistor
10 Ω, 0603, SMD, 1% generic resistor
510 Ω, 0603, SMD, 1% generic resistor
56 kΩ, 0603, SMD, 1% generic resistor
100 Ω, 0603, SMD, 1% generic resistor
0 Ω, 0603, SMD 5% generic resistor
Switch, slide, SPDT, 30 V/2 A, PC mount
PC test point, multipurpose, 1.78 mm diameter, red
Isolated, 4 A, half-bridge gate driver
36 V, 1 A, synchronous step-down dc-to-dc regulator
VREF = 2.5 V, 1%
Nichicon
TDK
Murata
Murata
Murata
TDK
Murata
Murata
Vishay
Vishay
NXP
ON Semiconductor
NXP
NXP
NXP
CML
Schurter
Not applicable
Emerson
Harwin
None
Coilcraft
Vishay
Coilcraft
Harwin, Inc.
Infineon
Infineon
NXP
NXP
Vishay
Yageo
Yageo
Stackpole Electronics, Inc.
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
Yageo
E-Switch
Keystone
Analog Devices
Analog Devices
Diodes, Inc.
RHS0J102MCN1GS
C1608X7R1C105KT
GRM188R61E106MA73
GRM21BR61E475KA12
GRM1885C1H103JA01
C1608X7R1C104KT
GRM1885C1H271JA01
GRM188R71E103KA01
B240A-E3
SBLB25L30CT-E3
BZX585-C15
MBR130LSFT1
PMEG4005CT
BZX585-B5V1
1PS79SB31
CMD15-21UBC/TR8
3413.0331.22
Not applicable
108-0740-001
09221326921
Not applicable
XAL7070-301ME
IHLP8787MZER4R7M51
LPS4012-333MR
P275RD125
BSC030P03NS3
BSZ019N03LS
BSS138PW
2PB1219A
Y14880R00200B9R
RC0603FR-0710KL
RC0603JR-072RL
CSNL2512FT2L00
RC0603FR-07158KL
RC0603FR-07118KL
RC0805JR-07330RL
RC0603FR-0782KL
RC0603FR-075K1L
RC0603FR-0751KL
RC0603FR-07182KL
RC0603FR-0715RKL
RC0603FR-0710RL
RC0603FR-0510RKL
RC0603FR-0756KL
RC0603FR-07100RL
RC0603JR-070RL
EG1903-ND
5010
ADuM7223ACCZ
ADP2441ACPZ
ZR431F01TA
Rev. 0 | Page 14 of 33
UG-845
13268-018
AD8450-EVALZ/ADP1972-EVALZ User Guide
13268-019
Figure 18. Power Stage Board Top Silkscreen
Figure 19. Power Stage Board Top Layer
Rev. 0 | Page 15 of 33
13268-020
AD8450-EVALZ/ADP1972-EVALZ User Guide
Figure 20. Power Stage Board Layer 2
13268-021
UG-845
Figure 21. Power Stage Board Layer 3
Rev. 0 | Page 16 of 33
UG-845
13268-022
AD8450-EVALZ/ADP1972-EVALZ User Guide
13268-023
Figure 22. Power Stage Board Layer 4
Figure 23. Power Stage Board Layer 5
Rev. 0 | Page 17 of 33
13268-024
AD8450-EVALZ/ADP1972-EVALZ User Guide
Figure 24. Power Stage Board Bottom Layer
13268-025
UG-845
Figure 25. Power Stage Board Bottom Silkscreen
Rev. 0 | Page 18 of 33
AD8450-EVALZ/ADP1972-EVALZ User Guide
UG-845
EVALUATION BOARD SCHEMATICS—ANALOG CONTROL BOARD
A G ND
A G ND
C80
R116
CS_P
1K
1nF
A G ND
C81
R117
1K
1nF
C8
R3
1K
1nF
I SV P
C9
R119
1K
1K
10nF
C82
C83
C10
1nF
1nF
1nF
A G ND
A G ND
A G ND
A G ND
A G ND
A G ND
C84
R120
V S_P
R7
1K
NP
C85
R121
NP
C86
R122
0
0
0
R123
R124
R125
0
0
V S_N
C88
NP
A G ND
C89
0
NP
A G ND
Figure 26. Voltage and Current Sense Input Filters
Rev. 0 | Page 19 of 33
I SV N
NP
BVP
C87
NP
BVN
C90
NP
A G ND
13268-026
R118
CS_N
R17
NP
R16
NP
0
R18
NP
R19
NP
NP
0
R29
NP
R30
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
I SV N
RGN
RGNS
I SGN0
I SGN0S
I SGN1
I SGN1S
I SGN2
I SGN3
RFB N
RFB P
I SGP3
I SGP2
I SGP1S
I SGP1
I SGP0S
I SGP0
RGPS
RGP
I SV P
U1
an t e n n a i n t e rf e re n ce
A GND
T P5
A GND
T P6
K e e p t h e u n u se d l i n e as sh o rt as p o ssi b l e d u ri n g l ayo u t t o avo i d
M u l t i p l e P GI A /P GDA gai n i s aval i ab l e w i t h e xt e rn al 0 o h m re si st o r
P GI A /P GDA
I SV N
R28
R27
R1 8 R2 9 p o p u l at e
R1 6 R1 7 R1 9 R2 7 R2 8 R3 0 n o t p o p u l at e
Gai n =6 6
I SV P
1
79
IM A X
78
77
NP
NP
NP
R11
NP
R126
A V E E _PGI A
A GND
A D C_I
0
R36
I SM E A
R127
T P4
A V CC_PGI A
R8
0
A D8450
0
0
NP
0
+12V a
R50
A GND
0. 1uF
C26
A V CC_PGI A
R4 1 R4 2 p o p u t at e
-5V a
0
R51
0
D A C_I _D B
A GND
0. 1uF
C28
0
R9
T P3
V IN T
62
IV E1
64
NP
T P1
0
0
R37
4. 7K
0. 1uF
C30
-5V a
0
R53
A GND
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
0
+12V a
R1
BVM EA
10K
R34
OV PR
V RE F
OCPR
OCPS
DGND
FA UL T
DV CC
NC
V SE T
V SE T B F
V V P0
NC
VVE0
VVE1
NC
V I NT
A V CC
V CL N
V CT RL
V CL P
A V E E _L OOP
A V CC_PGDA
A GND
R129
+12V a
R52
0
R47
A V CC_PGDA
A V E E _PGDA
R45
A V E E _PGI A
NP
R42 R43 R44
R3 8 R3 9 R4 0 R4 3 R4 4 R4 5 R3 6 n o t p o p u l at e
Gai n =0 . 8 ,
NP
0
R38 R39 R40 R41
74
R35
A GND
R10
0
75
R1 1 n o t p o p u l at e d
80
CS H
B V P 3S
21
73
V RE F
A D C_I _D B
70
A V CC
o f f se t sh i f t d i sab l e
BV P
BV P3
22
OA V P
BV P2
23
I S RE F L S
24
BV P1
76
I S RE F L
BV P0
25
A GND
V RE F
26
I S RE F H
B V RE F H
27
A GND
28
72
A V EE
29
B V RE F L
71
ISM EA
30
B V RE F L S
69
OA V N
BV N 1
32
BV N 0
31
BV N
D A C_I
67
ISET
BV N 3
68
OA V O
BV N 2
33
61
A V EE
IV E0
A D C_V _D B
34
66
NC
B V N 3S
35
65
IV E0
A V EE
36
IV E1
37
63
NC
A V CC
38
V IN T
M ODE
39
O V PS
40
BV M EA
A D C_V
Figure 27. AD8450 and Compensation Networks
M ode
0
R12
0
A GND
NP
DA C_V
R31
10K
11. 1K
R25
Faul t
DA C_V _DB
I SM E A
V SE T B F
V V P0
VVE0
VVE1
V I NT
0. 1uF
0. 1uF
C34
A GND
5V d
2 .5 * (4 . 7 +1 0 )/ 1 0 / 0 . 8 =4 . 6 V
V o l t age P ro e ct i o n t o : 4 . 6 V
2 .5 * (1 1 . 1 +1 0 )/1 0 /( 6 6 * 0 . 0 0 2 )=4 0 A
DGND
D1
NP
0. 1uF
C11
A GND
5V d
0. 1uF
C6
A V E E _L OOP
Cu rre n t P ro t e ct i o n t o : 4 0 A
C32
A GND
0
R2
C16
DGND
A GND
T P2
0
-5V a
C1 6 n o t p o p u l at e d
A V E E _PGDA
A GND
10uF
C5
A GND
R24
5V d
0
R23
R128
A V CC_L OOP
A GND
5V d
A GND
0. 1uF
C4
A V CC_L OOP
COM P
10K
R46
10K
R26
10K
R20
10K
R13
10K
R4
10K
R48
NP
C23
10K
R32
NP
C20
10K
R21
NP
0
R49
0
R33
0
R22
0
10K
C17
R15
0
R6
R14
NP
C13
10K
R5
NP
C1
IV E0
IV E1
V V E1
V V E0
ISM EA
ISM EA
BV M EA
V SETBF
BV M EA
Rev. 0 | Page 20 of 33
V V P0
NP
C24
NP
C21
NP
C18
NP
C14
NP
C2
10nF
C25
10nF
C22
10nF
C19
10nF
C15
10nF
C3
V IN T
V IN T
V IN T
Di sch arge , CV Lo o p
Di sch arge , CV Lo o p
Ch arge , CV Lo o p
Ch arge , CC Lo o p
Di sch arge , CC Lo o p
A GND
V IN T
UG-845
AD8450-EVALZ/ADP1972-EVALZ User Guide
13268-027
DGND
M ODE
NP
DGND
JP2
+12Vd
R60
10K
E N_PW R
1
2
DGND
FU2
FU1
FUSE
FUSE
+12V
NP
R130
0
R108
DGND
R1 3 0 p o p o l at e d f o r d i sch arge m o d e
R1 0 8 p o p o l at e d f o r ch arge m o d e
4. 7uF
C37
0
L1
R65
1uF
R64
NP
DGND
C44
10uF
DGND
3
1uF
R68
200
10
11
12
6
5
13
7
R57
4.7K
C41
DGND
R56
4. 7K
D4
L ED
R67
4. 7K
R6 4 n o t p o p u l at e d
DGND
C40
47pF
NP
NPR61
R58
DGND
DGND
+12V d
L1 n o t p o p u l at e d
DGND
R63
100K
M ODE
EN_PW R
DGND
SYNC_PWR
DGND
NP
I nduct or
C43 NP
10uF
d e f au l t se t t i n g f o r ch arge m o d e , p o p u l at e R1 0 8 , d e p o p u l at e R1 3 0
CON2
J3
B US_PWR
Se l f Po w e rO n : p o p u l at e p u l l u p re si st o r
Po w e rBo ard Co n t ro l : p o p u l ate th e se ri e s re si sto r o n PW R_CO N
SDP Co n t ro l : p o p u l at e t h e se ri e s re si st o r o n SDP _S_CO N
EN _PW R Lo gi c:
NP
JP1
5Vd
D6
Z ENER
C7
NP
FAUL T
COM P
8
5
ADP7102
VI N
EN
U3
DGND
0
R55
0
R54
CL
V OUT
SENSE
PG
1 4 V @ Bu s _Pw r = 2 4 V, Ze n ar = 1 4 . 7 V
1
2
7
Faul t
COM P
CL _Sense
1 0 V @ Bu s _Pw r = 1 2 V, Ze n ar =1 0 . 7 V
+1 2 Va: No t act u al l y 1 2 V
DGND
4.7uF
C49
+12Va
0
R92
20K
R59
C7 n o t p o p u l at e d
8
9
15
16
1
2
+1 2 Va @ 1 0 m A
DGND
CL
DL
DH
GNDs e n s e
R107
0
A DP1972
DGND
0. 1uF
C50
Q1
SS
DM A X
FREQ
M ODE
EN
SCFG
SYNC
V REG
V IN
GN D
14
U2
E PA D
4
GN D
3
DGND
DGND
4.7K
T P7
C45
4. 7uF
DGND
DGND
DL
D2
NP
C46
4.7uF
D5
L ED DGND
R69
4. 7K
5Vd
0
FB1
C47
4.7uF
DGND
5Va
+5 Va @ 5 m A
t o av o i d a f fe c ti n g o th e r si gn a ls
CS_P
VS_P
SYNC_PWR
DL
E N_PW R
CL
R1 0 5 n o t p o p u l at e d
AC si gn a l o u t p u t , p u t g ro u n d a ro u n d i t
SYN C_P W R:
DGND
C39 C3 8 , C3 9
NP n o t p o p u l a t e d
R1 0 6 n o t p o p u la t e d
R70
NP
R106
DGND
NP
C38
DH
2
U4
NP
+12V
ADM 8829
V IN
A GND
DGND
R105
BUS_PWR
6
CA P+
C36
GN D
6
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
4. 7uF
C42
DGND
VOUT
CON_PWR
J2
3
CA P -
+12V d
GN D
Rev. 0 | Page 21 of 33
9
Figure 28. ADP1972 and Local Power Supplies
4
R5 8 R6 1 n o t p o p u l at e d
1
DGND
DGND
D3
L ED
R66
4. 7K
-5V a
-5 V a @ 1 0 m A
CS_N
V S_N
DH
M ODE
Faul t
CL _Sense
C48
4.7uF
AGND
DGND
DGND
AD8450-EVALZ/ADP1972-EVALZ User Guide
UG-845
13268-028
2
3. 3Vd
/ L DAC
/ RE SET
GAI N
RST SEL
/ SY NC_DA C
SCL K
DIN
DOUT
DGND
C73
1uF
3.3V d
R103
4. 7K
33
R104
4.7K
6
9
15
10
16
13
12
14
8
R94
4. 7K
R99
VOUT
AGND
0. 1uF
A GND
100pF
33
/ L DAC
/ RE SET
GAI N
RST SE L
/ SY NC
SCL K
SDI N
SDOUT
U8
R90
2. 5Vref out
AGND
C66
1uF
C61
100pF
C65 NP
1uF
AGND
5Vref
33
R89
A GND
A GND
100pF
C51
C55
100pF
R82
C54
100pF
A GND
C52
100pF
C53
33
33
R72
AGND
R73
C74
4. 7uF
A DR4550
V IN
U7
33
R78
AGND
C64
A GND
+12V a
2.5V ref out
A DC_I
33
GN D
4
A DC_V
R80
AGND
C58
100pF
11
V l ogi c
33
A D5689R
AGND
4
6
39
40
1
37
36
35
34
33
32
31
30
29
28
27
26
5
4
3
2
NC
V OUT B
NC
V OUT A
A GND
C70
0.1uF
0. 1uF
C67
AGND
1
23
G PIO 0
2
7
6
3
AGND
REFOUT
REF-
REF+
AI N16
AI N15
AI N14
AI N13
AI N12
AI N11
AI N10
AI N9
AI N8
AI N7
AI N6
AI N5
AI N4
AI N3
AI N2
1K
R100
1K
R96
A GND
0. 1uF
25
G PIO 2
A D7173-8
0. 1uF
DGND
I OV DD
DOUT
DI N
SCL K
/ CS
/ ERROR
/ SY NC
XT A L 2
XT A L 1
NP
R95
5Va
C27
1uF
7
10
9
22
21
20
14
15
16
17
18
19
13
12
5Vref
C12 A GND
1uF
C78
1uF
R93
REGCA PA
AVDD2
AVDD1
REGCA PD
A GND
0
A GND
C76
1uF
C77
AGND
C75
AI N1/ REF2+
AI N0/ REF2-
U5
11
PD SW
R86
5
VDD
GN D
Figure 29. ADC, DAC, and SDP-S Connector
V RE F
38
G PIO 3
PA D D L E
2.5V ref out
DAC_V
DAC_I
0
R85
3.3V d
R77
4. 7K
DGND
R101
NP
R97
0
3. 3Vd
C72
1uF
AGND
R91
GAI N
5Va
Faul t
DOUT
DI N
SCL K
Se t Gai n t o 2
R88
10K
DOUT
/ L DAC
/ RESET
M ODE
33
R115
R109
R110
R81
DGND
R102
0
RST SE L
R9 8 n o t p o p u l at e d
R98
Re se t t o ze ro scal e
NP
/ SYNC_DA C
DGND
3. 3Vd
4. 7K
R87
/ CS_ADC
/ ERROR_A DC
/ SY NC_ADC
R1 0 1 n o t p o p u l at e d
0
C63
1uF A GND
C60
1uF DGND
C57
1uF
R76
4.7K
AGND
C71
0.1uF
0.1uF
C68
0.1uF
C62
0.1uF
C59
0.1uF
C56
33
R84
R75
4. 7K
3.3V d
33
33
33
DGND
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
/ RESET _I N
DNU
GND
/ RESET _OUT
EEPROM _A0
NC
NC
NC
GND
NC
NC
DNU
DNU
GPI O6
GND
GPI O4
GPI O2
GPI O0
DNU
DNU
GND
NC
SPI _SE L _C
SPI _SE L _B
GND
SPI _HOL D
DNU
DNU
DNU
DNU
DNU
DNU
GND
DNU
DNU
DNU
DNU
GND
DNU
DNU
DNU
DNU
DNU
GND
DNU
DNU
DNU
DNU
DNU
GND
DNU
DNU
DNU
DNU
GND
USB _V BUS
GND
GND
NC
NC
SDP_S_CON
J4
DNU
DNU
GND
DNU
DNU
DNU
DNU
DNU
GND
NC
NC
DNU
DNU
GPI O7
GND
GPI O5
GPI O3
GPI O1
SCL _0
SDA_0
GND
SPI _CL K
SPI _M I SO
SPI _M OSI
SPI _SEL _A
GND
DNU
DNU
DNU
DNU
DNU
DNU
GND
DNU
DNU
DNU
DNU
GND
DNU
DNU
DNU
DNU
DNU
GND
DNU
DNU
DNU
DNU
GND
DNU
DNU
DNU
DNU
DNU
GND
VI O_3. 3V
GND
GND
NC
NC
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
DGND
R114
R113
R112
R111
R83
DGND
33
33
33
33
33
DGND
DGND
1
2
3
4
U6
A0
A1
A2
V SS
24L C32
SCL K
DOUT
DI N
/ CS_ADC
VCC
WP
SCL
SDA
R7 4 n o t p o p u l at e d
E N_PW R
/ ERROR_A DC
/ SYNC_ADC
R79
100K
R74
NP
3. 3Vd
3. 3Vd
R71
100K
8
7
6
5
3.3V d
DGND
0.1uF
C79
13268-029
24
G PIO 1
A V SS
8
Rev. 0 | Page 22 of 33
41
UG-845
AD8450-EVALZ/ADP1972-EVALZ User Guide
AD8450-EVALZ/ADP1972-EVALZ User Guide
UG-845
Table 5. Analog Control Board Bill of Materials
Reference Designator
C1, C2, C13, C14, C17, C18, C20, C21, C23,
C24, C38, C39, C84 to C86, C88 to C90
C12, C27, C36, C41, C57, C60, C63, C65, C66,
C72, C73, C76, C78
C3, C15, C19, C22, C25
C37, C42, C45 to C49, C64
C4, C6, C11, C26, C28, C30, C32, C34, C50, C56,
C59, C62, C67, C68, C70, C71, C74, C75, C77, C79
C40
C43, C44
C5
C51, C52 to, C55, C58, C61
C7, C16, C87
C8, C10, C80 to C83
C9
D1
D2
D3 to D5
D6
FB1, R65, R108
FU1, FU2
J2
J3
J4
JP1, JP2
L1
Q1
R1, R2, R6, R8 to R10, R12, R15, R18, R22 to R24,
R29, R33, R36, R41, R42, R47, R49 to R55, R85,
R91 to R93, R97, R102, R107, R120 to R129
R11, R16, R17, R19, R27, R28, R30, R35, R38,
R39, R40, R43 to R45, R58, R61, R64, R74, R90,
R95, R98, R101, R105, R106
R130
R25
R3, R7, R96, R100, R116, R117 to R119
R37, R56, R57, R66, R69, R70, R75 to R77, R87,
R94, R103, R104
R4, R5, R13, R14, R20, R21, R26, R31, R32, R34,
R46, R48, R60, R88
R59
R63, R71, R79
R67
R68
R72, R73, R78, R80 to R84, R86, R89, R99,
R109, R110 to R115
TP1 to TP7
U1
U2
U3
U4
U5
U6
U7
U8
Description
Not applicable
Manufacturer
Not applicable
Part Number
Not applicable
Ceramic capacitor, 0603, 1.0 μF, 25 V
Murata
GRM188R71E105KA12D
Ceramic capacitor, 0603, 10 nF, 50 V, X7R
Ceramic capacitor, 1206, 50 V, 4.7 μF
Ceramic capacitor, 0603, X7R, 50 V, 100 nF
AVX
AVX
AVX
06035C103KAT2A
12065C475KAT2A
06035C104K4Z2A
Ceramic capacitor, 0603, 47 pF, 50 V
Tantalum capacitor, 50 V, 10 μF
Ceramic capacitor, 10 μF, 10 V, X7R, 0805
Ceramic capacitor, 0603, 100 pF, 50 V
Not applicable
Ceramic capacitor, 0603, 1 nF, 50 V
Ceramic capacitor, 0805, 10 nF, 25 V, C0G
Not applicable
Not applicable
Yellow LED
Zener diode, 12 V, 0.2 W
0 Ω (jumper), 125 mW
Fuse, 1206, fast, 125 mA
Connector, DIN41612, B/2, 32
Connector
SDP connector
Jumper, 2211S-03G
Not applicable
Transistor, NPN, SOT89, 0.9 W
Resistor, 0603, 0 Ω (jumper), 1%
AVX
Vishay
TDK
AVX
Not applicable
AVX
Kemet
Not applicable
Not applicable
Rohm
ON Semiconductor
Vishay
Littelfuse
Harting
TE Connectivity
Hirose
Multicomp
Not applicable
Diodes, Inc.
Vishay
06035A470JAT2A
293D106X9050D2TE3
C2012X7R1A106K125AC
06035A101JAT2A
Not applicable
06035A102JAT2A
C0805C103J3GACTU
Not applicable
Not applicable
SML-311YTT86K
MM3Z12VT1G
CRCW08050000ZSTA
0466.125NR
09 22 232 6825
1776275-2
FX8-120S-SV(21)
2211S-03G
Not applicable
2DD2679-13
CRCW06030000Z0EA
Not applicable
Not applicable
Not applicable
Not applicable
Resistor, 0603, 11 kΩ
Resistor, 0603, 1 kΩ, 0.1%, 0.1 W
Resistor, 0603, 4.7 kΩ, 1%
Not applicable
Multicomp
Panasonic
Vishay
Not applicable
MC0063W0603111K
ERA3AEB102V
CRCW06034K70FKEA
Resistor, 0603, 10 kΩ, 1%
Vishay
CRCW060310K0FKEA
Resistor, 0603, 20 kΩ, 1%
Resistor, 0603, 100 kΩ, 1%
Resistor, 0805, 4.7 kΩ, 1%
Resistor, 0805, 200 Ω, 1%
Resistor, 0603, 1%, 50 ppm, 33 Ω
Vishay
Vishay
Vishay
Vishay
Yageo
CRCW060320K0FKEA
CRCW0603100KFKEA
CRCW08054K70FKEA
CRCW0805200RFKEA
RT0603FRE0733RL
Test point
Precision analog front end and controller
for testing and monitoring battery cells
Asynchronous buck or boost PWM controller
20 V, high input voltage LDO
Charge pump voltage inverter
Fast settling, highly accurate, low power,
8-/16-channel, multiplexed ADC
EEPROM
5 V, high precision, low power, low noise
voltage reference
Dual, 16-bit, rail-to-rail, voltage output DAC
Vero
Analog Devices
20-313141
AD8450
Analog Devices
Analog Devices
Analog Devices
Analog Devices
ADP1972
ADP7102
ADM8829
AD7173-8
Microchip
Analog Devices
24LC32A-I/SN
ADR4550
Analog Devices
AD5689R
Rev. 0 | Page 23 of 33
AD8450-EVALZ/ADP1972-EVALZ User Guide
13268-030
UG-845
Figure 30. Analog Control Board Top Silkscreen
Rev. 0 | Page 24 of 33
UG-845
13268-031
AD8450-EVALZ/ADP1972-EVALZ User Guide
Figure 31. Analog Control Board Top Layer
Rev. 0 | Page 25 of 33
AD8450-EVALZ/ADP1972-EVALZ User Guide
13268-032
UG-845
Figure 32. Analog Control Board Layer 2 (Ground)
Rev. 0 | Page 26 of 33
UG-845
13268-033
AD8450-EVALZ/ADP1972-EVALZ User Guide
Figure 33. Analog Control Board Layer 3
Rev. 0 | Page 27 of 33
AD8450-EVALZ/ADP1972-EVALZ User Guide
13268-034
UG-845
Figure 34. Analog Control Board Layer 4
Rev. 0 | Page 28 of 33
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13268-035
AD8450-EVALZ/ADP1972-EVALZ User Guide
Figure 35. Analog Control Board Layer 5 (Power)
Rev. 0 | Page 29 of 33
AD8450-EVALZ/ADP1972-EVALZ User Guide
13268-036
UG-845
Figure 36. Analog Control Board Bottom Layer
Rev. 0 | Page 30 of 33
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13268-037
AD8450-EVALZ/ADP1972-EVALZ User Guide
Figure 37. Analog Control Board Bottom Silkscreen
Rev. 0 | Page 31 of 33
UG-845
AD8450-EVALZ/ADP1972-EVALZ User Guide
TROUBLESHOOTING
SOFTWARE
HARDWARE
To troubleshoot the software, take the following steps:
To troubleshoot the hardware, take the following steps:
1.
1.
2.
3.
4.
Always install the software prior to connecting the
hardware to the PC.
Always allow the install to fully complete (the software is a
2-part install: the ADC software and the SDP drivers).
Completing the install may require a restart.
When you first plug in the SDP-S board via the USB cable
provided, allow the new Found Hardware Wizard to run.
This step may take a little time; however, allow this to
happen prior to starting the software.
Where the board does not appear to be functioning, ensure
that the ADC evaluation board is connected to the SDP-S
board and that the board is being recognized in the Device
Manager, as shown in Figure 11.
2.
If the software does not read any data back, check that the
power is applied within the power ranges described in the
Powering the System section.
Using a voltmeter, verify the following voltages on the
analog control board:



3.
4.
5.
Rev. 0 | Page 32 of 33
+5 V at U3, Pin 1
−5 V at U4, Pin 1
+12 V (or the actual input voltage to the system) at
U3, Pin 8.
Launch the software and read the data. If nothing happens,
exit the software.
Power down the board and relaunch the software.
If no data is read back, confirm that the power stage board
is plugged into the analog control board, and that the
analog control board is connected to the SDP-S board and
that the board is being recognized in the Device Manager,
as shown in Figure 11.
AD8450-EVALZ/ADP1972-EVALZ User Guide
UG-845
PRODUCTS ON THIS EVALUATION SYSTEM
Table 6.
Product
AD8450/AD8451
ADP1972
AD7173-8
AD5689R
ADP2441
ADP7102
ADM8829
ADuM7223
Ordering Model
AD8450ASTZ/AD8451ASTZ
ADP1972ARUZ
AD7173-8BCPZ
AD5689RACPZ
ADP2441ACPZ
ADP7102ACPZ
ADM8828ART
ADM7223ACCZ
Description
Precision analog front end and controller for battery test/formation systems
Buck or boost, PWM controller for battery test solutions
Low power, 8-/16-channel, 31.25 kSPS, 24-bit, highly integrated Σ-Δ ADC
Dual, 16-bit nanoDAC+ with 2 ppm/C reference
36 V, 1 A, synchronous step-down dc-to-dc regulator
20 V, 300 mA, low noise, CMOS LDO
Switched capacitor voltage inverter with shutdown
Isolated precision half-bridge driver, 4 A output
RELATED LINKS
Resource
Battery Testing and Formation
Analog Dialogue Article
Technical Article
AN-1319
AD8450/AD8451 Compensator
Design Tool
Description
Battery Testing and Formation application page
“Accurate Analog Controller Optimizes High-Efficiency Li-Ion Battery Manufacturing”
Power Efficient Battery Formation/Testing System with Energy Recycling
Application Note, Compensator Design for a Battery Charge/Discharge Unit Using the AD8450 or the AD8451
Simulation design tools for the AD8450/AD8451
ESD Caution
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection
circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
Legal Terms and Conditions
By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions
set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you
have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc.
(“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal,
temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided
for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional
limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term
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ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may
not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to
promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any
occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board.
Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice
to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO
WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED
TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL
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AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable
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Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby
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©2016 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG13268-0-5/16(0)
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