19-5642; Rev 1.1; 5/11
A Maxim Integrated Products Brand
78M6612 Split-Phase Evaluation Board
User Manual
May 24, 2011
Rev. 1.1
UM_6612_044
78M6612 Split-Phase Evaluation Board User Manual
UM_6612_044
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit
patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
M a x i m I n t e g r a t e d P r o d u c t s , 1 2 0 S a n G a b r i e l D r iv e , S u n n y v a le , C A 9 4 0 8 6 4 0 8- 7 3 7 - 7 6 0 0
 2011 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products.
UM_6612_044
78M6612 Split-Phase Evaluation Board User Manual
Table of Contents
1
Introduction ................................................................................................................................... 5
1.1
Package Contents ................................................................................................................ 5
1.2
System Requirements........................................................................................................... 5
1.3
Safety and ESD Notes .......................................................................................................... 6
1.4
Firmware Demo Code Introduction ........................................................................................ 6
1.5
Testing the 78M6612 Split-Phase Evaluation Board Prior to Shipping ................................... 6
2
Installation ..................................................................................................................................... 7
2.1
Basic Connection Setup ........................................................................................................ 8
2.2
Relay Configuration ............................................................................................................ 10
2.3
Optional UART Interface ..................................................................................................... 11
2.4
USB Driver Installation ........................................................................................................ 13
2.5
Confirm COM Port Mapping ................................................................................................ 14
2.6
Verify Serial Connection to the PC ...................................................................................... 15
3
Calibration.................................................................................................................................... 17
4
Windows Graphical User Interface (GUI) .................................................................................... 18
4.1
Installing the GUI ................................................................................................................ 18
4.2
Changing the Com Port Assignment ................................................................................... 19
4.3
Starting the GUI .................................................................................................................. 22
5
Schematics, Bill of Materials and PCB Layouts ......................................................................... 24
5.1
78M6612 Split-Phase Evaluation Board Schematics ........................................................... 24
5.2
78M6612 Split-Phase Evaluation Board Bill of Materials...................................................... 26
5.3
78M6612 Split-Phase Evaluation Board PCB Layouts ......................................................... 28
6
Ordering Information ................................................................................................................... 29
7
Included Documentation ............................................................................................................. 29
8
Contact Information ..................................................................................................................... 29
Revision History .................................................................................................................................. 30
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Figures
Figure 1: Split-Phase Energy Measurement Configuration ....................................................................... 7
Figure 2: Top Side 78M6612 Split-Phase Evaluation Board Connections ................................................. 8
Figure 3: Bottom Side 78M6612 Split-Phase Evaluation Board Connections ............................................ 9
Figure 4: 78M6612 Split-Phase Evaluation Board Application Diagram .................................................. 10
Figure 5: UART Connector .................................................................................................................... 11
Figure 6: UART Isolator Daughter Card ................................................................................................. 11
Figure 7: Split-Phase Calibration Test Setup .......................................................................................... 17
Figure 8: 78M6612 Split-Phase GUI....................................................................................................... 23
Figure 9: 78M6612 Split-Phase Evaluation Board Electrical Schematic (1 of 2) ...................................... 24
Figure 10: 78M6612 Split-Phase Evaluation Board Electrical Schematic (2 of 2) .................................... 25
Figure 11: 78M6612 Split-Phase Evaluation Board PCB Top View ......................................................... 28
Figure 12: 78M6612 Split-Phase Evaluation Board PCB Bottom View .................................................... 28
Table
Table 1: High Voltage AC Connections .................................................................................................... 9
Table 2: Line 1 versus Neutral Current Sensing Configuration................................................................ 10
Table 3: J12 UART Connector Pin Assignments .................................................................................... 12
Table 4: COM Port Setup Parameters.................................................................................................... 15
Table 5: CLI Reset Commands .............................................................................................................. 17
Table 6: CLI Relay Commands .............................................................................................................. 17
Table 7: CLI Measurement Results Registers ........................................................................................ 17
Table 8: CLI Input Registers .................................................................................................................. 17
Table 9: CLI Status Registers ................................................................................................................ 17
Table 10: 78M6612 Split-Phase Evaluation Board Bill of Materials ......................................................... 26
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78M6612 Split-Phase Evaluation Board User Manual
1 Introduction
The Teridian Semiconductor Corporation (TSC) 78M6612 Split-Phase Evaluation Board is an electrical
measurement unit for performing measurements from a single electrical outlet. It incorporates the TSC
78M6612 power and energy measurement IC. The 78M6612 Split-Phase Evaluation Board is connected
to a PC through a USB cable such as one provided in the demo kit package. Optionally, the 78M6612
UART TX & RX signals can be accessed via a header for communicating with an external controller or
wireless communications module. The Evaluation Board demonstrates the capability of the 78M6612
energy meter controller chip for measurement accuracy and
overall system use.
The board is pre-programmed with Split-Phase Demo Firmware
in the flash memory of the 78M6612 IC, which allows evaluation
of the IC’s capabilities.
The 78M6612 Split-Phase energy measurement data and status
is read back using an ASCII text string CLI command set. Easy
manual operation is performed using HyperTerminal. Optionally,
®
a Windows -based Graphical User Interface (GUI) is provided for
simplified access to the following measurement data and
controls:
•
•
•
•
Power, current, voltage and power factor indicator dials
Line frequency
Alarm indicators
Programmable Alarm thresholds
1.1 Package Contents
The 78M6612 Split-Phase Evaluation Board Demo Kit includes:
•
•
•
•
78M6612 Split-Phase Evaluation Board
USB Cable Assembly USB A-B 28/24 1.8M (Tyco/Amp 1487588-3)
+12VDC@1A power supply
CD with OMU Software and Documentation
1.2 System Requirements
The 78M6612 Split-Phase Evaluation Board requires use of a PC with the following features:
•
•
®
PC (1 GHz, 1 GB) with Microsoft Windows XP or Windows 2000, equipped with USB port.
Minimum 1024 x 768 video display resolution.
Windows and Windows XP are registered trademarks of Microsoft Corp.
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1.3 Safety and ESD Notes
EXERCISE CAUTION WHEN LIVE AC VOLTAGES ARE PRESENT!
Standard ESD precautions must be taken when handling electronic equipment. The
78M6612 contains ESD protected interfaces.
Do not connect test equipment, ICE emulators or external development boards directly to the
78M6612 Split-Phase hardware. Damage to the 78M6612 and external equipment will occur due to
the 78M6612’s “high side” reference topology. The 78M6612’s V3P3 (i.e. “high side”) is connected
directly to Neutral (Earth Ground) creating a ground reference disparity with any properly
grounded external equipment.
1.4 Firmware Demo Code Introduction
The Firmware Demo Code provides the following features:
•
•
Basic energy measurement data such as Watts, Volts, current, VAR, VA, phase angle, power factor,
accumulated energy, frequency, date/time, and various alarm statuses.
Control of alarm thresholds, calibration coefficients, temperature compensation, etc.
The following setup is used to facilitate performance evaluation between the user at the PC host and the
firmware code in the board:
•
The Command Line Interface (CLI) via HyperTerminal or comparable terminal emulator on a different
operating system. Information about the CLI is presented in Section 3.0.
The 78M6612 Split-Phase Evaluation Board is shipped with Demo Code Revision 1.14c or later loaded in
the 78M6612 chip and included on the CD. The code revision can be verified by entering the command >i
via the command line interface. Firmware for the Evaluation Board can be updated using either the
Teridian TFP2 or an in-circuit emulator such as the Signum Systems ADM51 (www.signum.com).
The board components and firmware settings are designed to operate with the following nominal AC
electrical ranges:
Voltage
Current
Line Frequency
110-240 VAC
10 mA – 20A
46-64 Hz
1.5 Testing the 78M6612 Split-Phase Evaluation Board Prior to Shipping
Before every 78M6612 Split-Phase Evaluation Board is shipped, the following procedures have been
performed at the factory:
•
Full Calibration – Precise energy source equipment is used to calibrate the current and voltage. The
temperature is also calibrated at the same time.
•
Accuracy Test – This “bench” level test ensures the energy accuracy is within ±0.5%.
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2 Installation
The 78M6612 Split-Phase Evaluation Board is intended for use with a 3-wire single-phase distribution
system. This 3-wire single-phase distribution system is typically sourced from a distribution transformer
with a single-phase input (primary) winding. The distribution transformer’s secondary winding has a center
tap which is defined as Neutral. Line 1 and Line 2 exist on either side of Neutral exhibiting a 180° phase
shift between them.
The 78M6612 is referenced to Neutral and measures both voltages present on Line1 and Line 2 with
respect to Neutral. Additionally, load currents flowing in both Line 1 and Line 2 are measured. The
following figure shows the 78M6612 Split-Phase Evaluation Board’s measurement inputs with various
load configurations.
CT1
I1
Line 1
ILOAD 1
Neutral
V2
LOAD3
V1
ILOAD 2
Line 2
I2
CT2
INeutral
Figure 1: Split-Phase Energy Measurement Configuration
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2.1 Basic Connection Setup
Figure 1 and 2 show the basic connections of the 78M6612 Split-Phase Evaluation Board for use with
external equipment. The 78M6612 Split-Phase Evaluation Board is powered either by an on-board ACDC
switcher or from an external +12VDC power supply. A USB cable provides the communications link
between the host PC and the 78M6612 Split-Phase Evaluation Board. The high voltage AC source and
load wires connect to spades mounted on the bottom side of the board.
J2
ACDC
Switcher
External
+12VDC
USB
Connector
.
Figure 2: Top Side 78M6612 Split-Phase Evaluation Board Connections
Install jumper J2 when using the on-board ACDC switcher. The switcher draws power from one of the AC
inlet phase wires. Remove jumper J2 when attaching an external +12VDC power supply to disconnect the
switcher from the AC inlet. The board draws less then 100ma from the external +12VDC supply. Use an
external +12VDC power supply which is fully isolated.
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J13
J4
J5
J18
J16
J7
Figure 3: Bottom Side 78M6612 Split-Phase Evaluation Board Connections
The high voltage AC wires attach to the spades located on the bottom side of the board. The following
table describes the wiring connections.
Table 1: High Voltage AC Connections
Rev. 1.1
Connector
External Circuit
J4
Neutral – from Source
J5
Neutral – to load
J7
Line 1 – from Source
J13
Line 2 - from Source
J16
Line 1 – to Load
J18
Line 2 – to Load
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Line 2
Neutral
Host PC
Line 1
Split Phase
AC Source
78M6612 SP Eval Board
USB
USB
Controller
Isolation
ACDC
Switcher
12VDC
3V3 Reg
UART
Current
Shunt
6612
Voltage
Divider
Voltage
Divider
Relay
Relay
10x DIOs
I2C
Split Phase
AC Load Under Test
Figure 4: 78M6612 Split-Phase Evaluation Board Application Diagram
The 78M6612 Split-Phase Evaluation Board is preconfigured to measure the Load currents present on
Line 1 and Line 2 using two current transformers (CT). Alternatively, the board has provisions the replace
the Line 1 CT with a current sensing shunt in series with the Neutral wire. Two resistors (R18 and R43)
provide the sensor selection. The following table provides the resistor population options for selecting the
CT versus the shunt.
Table 2: Line 1 versus Neutral Current Sensing Configuration
Sensor Configuration
R18
R43
CT – Line 1
No Component
Install 750Ω
Shunt - Neutral
Install 750Ω
No Component
Presently the firmware only supports the CT–Line1 configuration.
2.2
Relay Configuration
The CLI commands support separate Line 1 and Line 2 relays. However, the 78M6612 Split-Phase
Evaluation Board uses DIO7 to control both Line 1 and Line 2 relays so that control of power to both
remains in sync.
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2.3 Optional UART Interface
The 78M6612 Split-Phase Evaluation Board provides an option to bypass the on-board serial USB
controller. This option is useful for communicating with an external controller or attachment of a wireless
module.
The optional UART interface is accessible via connector J12. Remove the 0Ω resistor R38 to prevent TX
contention with the on-board isolator’s output, U3.
UART Connector
J12
Remove R38
Figure 5: UART Connector
Due to the 78M6612’s V3P3 being directly connected to Neutral, the Teridian supplied
UART isolator must be inserted between the evaluation board and the external controller.
The V3P3 to Neutral connection results in the 78M6612’s GND pin being 3.3V below the
external controller’s GND pin. Additionally, the UART isolator board provides for galvanic
isolation between the evaluation board and the external controller hardware.
Installed
UART
Isolator
Daughter Card
Short cable
harness to
external
controller
Figure 6: UART Isolator Daughter Card
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Table 3: J12 UART Connector Pin Assignments
J12 Pin Number
Identifier
Function
1
V3P3
+3.3V to daughter card
2
TXD
78M6612 TXD output
3
RXD
78M6612 RXD input
4
GND
GND to daughter card
The UART Isolator daughter card maintains the same pin functions on its connector interface to the
external controller.
The UART isolator board is not required when using a wireless module. However, use of an antenna with
an exposed metal mounting base presents a safety hazard. The other consideration regarding use of a
wireless module is the module’s transmitting power consumption. The on-board switcher can provide only
100mA (at 3.3V). Use an external power supply if the transmitter’s power is greater than 100mA.
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2.4 USB Driver Installation
This evaluation kit includes an isolated USB interface for serial communications with a PC. The FTDI USB
controller IC FT232R performs the USB functions. The FTDI Windows driver presents a virtual COM port
for enabling serial communications. Control of the 78M6612 Split-Phase Evaluation Board can be
managed using either a terminal emulation program or using the supplied Windows GUI. The FTDI
Windows driver is a certified driver for Windows 2000 and XP.
1. Upon attaching the 78M6612 Split-Phase Evaluation Board to the PC, the Found New Hardware
Wizard automatically launches and installs the appropriate driver files. If your PC does not find the
FTDI driver files on its local hard disk drive, locate and reference the FTDI USB Driver and Utilities
subdirectory on the CD. The FT232R controller is powered from the USB cable and is active even
when no power is applied to the 78M6612 Split-Phase Evaluation Board.
Notes: If an older FTDI driver has been previously installed, it is recommended to remove the older
version before installing this newer FTDI driver. Execute the ftdiClean.exe utility from the FTDI
USB Driver and Utilities subdirectory.
For FTDI driver support on other operating systems, please check FTDI’s website at (Error!
Hyperlink reference not valid.www.ftdichip.com/FTDrivers.htm).
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2.5 Confirm COM Port Mapping
•
Launch the Control Panel and click on the System icon.
•
The System Properties screen appears. Click on the Hardware tab. Click on Device Manager.
Under Ports (COM & LPT), look for the USB Serial Port assignment.
•
Take note of the COM port assignment for the USB Serial Port.
OMU1 COM Port:
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2.6 Verify Serial Connection to the PC
After connecting the USB cable from the 78M6612 Split-Phase Evaluation Board to the host PC, start the
HyperTerminal application (or another suitable communication program) and create a session using the
communication parameters show in Table 1.
Table 4: COM Port Setup Parameters
Setup Parameter
78M6612
Port speed (baud)
38400
Data bits
Parity
Stop bits
Flow control
8
None
1
Xon/Xoff
HyperTerminal can be found in Windows by selecting Start All Programs Accessories 
Communications HyperTerminal. The connection parameters are configured by selecting File 
Properties. The New Connection Properties menu appears.
Select
COM Port
Select the appropriate COM port and click Configure. The COMn Properties menu appears.
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Note that port parameters can only be adjusted when the connection is not active. It may be necessary to
click the Disconnect Button to disconnect the port.
Disconnect
FTDI COM Port Trouble-Shooting
If the FTDI device driver did not install properly, there would be no assigned COM port
number for the FTDI controller. Repeat the USB Driver Installation, see Section 2.3.
Microsoft Windows may associate a Ball Point device to the FTDI USB controller. When this
occurs a FTDI device COM port assignment is available via HyperTerminal but there is no
communications data. Verify if a Ball Point device has been added to the “Human Interface
Devices” via the Device manager. Refer to Section 2.4 for access to the Device Manager. If
a Ball Point device exists, delete it and unplug and replug the evaluation board’s USB cable.
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3 Initialization and Calibration
The 78M6613 Split-Phase Firmware includes a relay control routine that initializes the relays in the ‘off’
position. Until relays are turned ‘on’ using the TC0 command, only voltage, line frequency, and chip
temperature can be measured and reported. To globally turn on or off relays with the Split-Phase
Firmware, the following commands should be used.
>TC0 (turn on all relays)
>TC3 (turn off all relays)
The Split-Phase firmware also includes built in calibration routines. Using the precision source method, a
known external voltage source, ambient temperature, and current source (load) is provided to the
evaluation board during calibration by Teridian. The routine automatically adjusts coefficients until
measured values match known (target) values and saves them to flash memory. It is recommended the
user read back and record these calibration coefficients. This will allow the user to re-store the calibration
settings should the firmware for the evaluation board be updated in the future. There are four calibration
coefficients: one for each voltage input and one for each current input. These four coefficients are read
back using the ]8???? command.
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4 Windows Graphical User Interface (GUI)
The 78M6612 Split-Phase GUI displays RMS voltage and current, power, volt-amperes, and power factor
for two independent phases as well as totals for these parameters. A true RMS line-to-line voltage is also
shown. Indicators are provided for the various alarms.
The 78M6612 Split-Phase GUI is a National Instruments CVI application program. Click on the GUI
setup.exe file provided on the CD to start the self installer.
4.1 Installing the GUI
After clicking on setup.exe, select the installation directories and click on Next:
Confirm the installation and click on Next:
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Confirm installation completion and click on Finish:
4.2 Changing the Com Port Assignment
The 78M6612 Split-Phase GUI only allows for selecting Com Port assignments of COM1 through COM4.
If your FTDI device is assigned a higher Com Port number, open the Device Manager and navigate to the
device’s Advanced Settings properties to change the Com port number.
Click on the Device Manager icon:
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Click on the Device Manager button in the Hardware tab:
Click on the Ports (COM & LPT) line item to display all assigned ports.
Then high-light and click Properties of the desired USB Serial Port:
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Click on the Port Settings tab:
Click on the Advanced button:
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Click on the COM Port Number drop down arrow and select an available Com Port between 1 and 4:
Click OK on the various screens to accept this Com Port assignment change.
4.3 Starting the GUI
Start the 78M6612 Split-Phase GUI by clicking on the GUI’s eval.exe file via the Start Menu or locate the
executable in the target directory selected earlier.
Click on Setup to select the Com Port assigned to the FTDI device:
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Click on Action to display the Measurement panel:
Click on the Start and Stop buttons to operate the GUI:
Figure 7: 78M6612 Split-Phase GUI
Write address = F0 and data = 0 to turn on the relays.
Write address = F0 and data = 1 to turn off the relays.
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5 Schematics, Bill of Materials and PCB Layouts
This section includes the schematics, bill of materials and PCB layouts for the 78M6612 Split-Phase Evaluation Board.
5.1
78M6612 Split-Phase Evaluation Board Schematics
J4
ACTERM
K1287
MS 534-1287-ST
Neutral In
Shunt PCBoard Center Point
ABSOLUTELY CRITICAL to
performance. Refer to
Application Note.
1
2
V3P3
R17
0.004 0.1% 2.5W
2512P
MS 66-ULR25R004FLFTR
J5
ACTERM
K1287
MS 534-1287-ST
V3P3
R18
750
0603
Neutral Out
1
2
C32
1000pF
0603
LINE1C
V3P3
C29
0.1uF
0603
V3P3
LINE1 CT Sensor
CT1
CT020P2A
CT020P2A
???
R42
4.99 1%
R43
1210
NC
MS 660-SR732ETTE4R99F 0603
V3P3
LINE1 In
J7
ACTERM
K1287
MS 534-1287-ST
1
2
J8
ACTERM
K1287
MS 534-1287-ST
1
2
V3P3
R40
4.99 1%
R41
1210
750
MS 660-SR732ETTE4R99F 0603
LINE2 CT Sensor
CT2
CT020P2A
CT020P2A
???
53
V3P3A
C31
1000pF
0603
57
C30
0.1uF
0603
C2
10uF 25V
1812
478-1762-1-ND
GND
C1
0.1uF
0603
GND
IA
+
LINE2C
To Relay
R1
16.9K 1%
0603
56
R4
R5
1M 0.1%
1M 0.1%
1206W
1206W
MS 660-RN732BTTD1004B25
R2
750 0.1%
0603
C21
0.1uF
0603
C3
1000pF
0603
LINE1V
LINE1
IB
V1
59
V1
C4
100pF
0603
R3
20.0K, 1%
0603
GND
GND
J16
ACTERM
K1287
MS 534-1287-ST
VA
50
V2P5
V2P5
C6
NC
0603
VB
-12VDC
R19
2K
0603
R15
10K
0603
Q2
PNP 500ma 30V
SOT23T
MS 610-CMPTA63
1
2
R16
1K
0603
U1A
78M6612-68QFP
QFN68
7
8
1
2
RLY 1
5
6
C7
27pF
0603
XOUT
Y1
32.768KHz
CM200S
535-9166-1-ND
XIN
62
RELAY 1
1
2
3
4
64
XOUT
XIN
4
RL1
16A 12V SPDT Low Prof ile
ALZ
255-1446-ND
GND
V3P3
LED1
GREEN
LED100
MS 606-4300H5LC
LINE1 Out
J17
From LINE2 In
ACTERM
K1287
MS 534-1287-ST
58
VREF
GNDA
1
2
3
4
J14
ACTERM
K1287
MS 534-1287-ST
54
55
1
2
5
6
To Relay
J15
ACTERM
K1287
MS 534-1287-ST
+/-250mVpp
+/-178mVrms
GND
C8
27pF
0603
52
From LINE1 In
C22
0.1uF
0603
C5
1000pF
0603
LINE2V
LINE2
1
2
1
2
R6
750 0.1%
0603
1
LINE2 In
7
8
J13
ACTERM
K1287
MS 534-1287-ST
R7
R8
1M 0.1%
1M 0.1%
1206W
1206W
MS 660-RN732BTTD1004B25
GND
RL2
16A 12V SPDT Low Prof ile
ALZ
255-1446-ND
LINE2 Out
J18
ACTERM
K1287
MS 534-1287-ST
1
2
Non-Isolated SMPS
V3P3
All things ref erenced to V3P3 f or 78M6612
Weco testing requires plug rev ersal
HVDC
VR1
BP5045A
SIP10BP
MS 755-BP5045A
-12V
L1
1000uH 0.5A
4800S
MS 580-48102SC
-12VDC
3
J3
2
Weco Tst
1
RAPC712
MS 502-RAPC712
4
R9
10.0K, 1%
0603
GND
+
-VIN1
-VIN2
-VIN3
-VIN4
R10
10 1/2W
1210W
MS 660-RK73H2ETTD10R0F
C12
220uF 25V lo imp
UUDB
MS 647-UUD1E221MNL
L2
D1
1A 400V
SMB
MS 621-S1GB-F
C13
0.1uF
0603
10
8
J2
Weco Tst
SIP100P2
1
2
1
C28
0.015uF
0603
MS 80-C0603C153K3R
8
SD
C11
1uF 20V
1206P
VR2
UCC284
SOIC8
MS 595-UCC284DP-ADJ
VS
-VOUT
2
3
6
7
+
GND
C10
0.1uF 450V
C330
MS 80-C330C104KCR
4
V3P3
C9
22uF 450V
+
XRL450B
MS 140-XRL450V22-RC
L1
ZNR1
275V
VE09P
MS 581-VE09P02750K
6
V3P3
1
5
V3P3
connected to
NEUTRAL
C14
1uF
0603
R11
17.4K, 1%
0603
3.3V below GND
12V below
Neutral
Neutral
+
C15
10uF 25V
1812
DigiKey 478-1762-1-ND
-12VDC
V3P3
Figure 8: 78M6612 Split-Phase Evaluation Board Electrical Schematic (1 of 2)
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Rev. 1.1
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78M6612 Split-Phase Evaluation Board User Manual
49
10
VBAT
V3P3D
C18
0.1uF
0603
V3P3SYS
8
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG29/DIO9
SEG30/DIO10
SEG31/DIO11
SEG34/DIO14
SEG35/DIO15
SEG36/DIO16
SEG37/DIO17
SEG19/DIO19
SEG40/DIO20
SEG41/DIO21
GND
SW1
NC
EP11
RESET
Reset Switch
EVQ-PJX05M Panasonic
1K
1K
1000pF
RESET
GND
V3P3
1
2
3
4
5
6
J11
ICE
SIP100P6
51
R22
0
0603
C19
NC
0603
ICE inputs become
LCD seg driv ers
when ICEE low
RXTX
TCLK
ERST
2
67
66
ICEEN
C20
1000pF
0603
38
E_RXTX/SEG38
E_TCLK/SEG33
E_RST/SEG32
COM0
COM1
COM2
COM3
ICE_E
R32
330
0603
SEG28/DIO8
V3P3
1
2
3
4
SEG24/DIO4
SEG25/DIO5
9
4
DIO3
CKTEST/SEG19
TMUXOUT
SEG26/DIO6
UTX
URX
1
19
USBDM
USBDP
15
14
C25
4.7uF
1206P
J22
USB-B
USBBV
MS 806-KUSBVX-BSIN-W
1.5M A/B White Cable
Mouser 571-1487588-2
18
5
12
13
25
29
23
27
28
16
VCCIO
VCC
RXD
TXD
USBDM
USBDP
RTS
CTS
DTR
DSR
DCD
RI
RESETB
NC1
NC2
NC3
NC4
NC5
NC6
CBUS0
CBUS1
CBUS2
CBUS3
CBUS4
OSCI
OSCO
3V3OUT
C26
0.1uF
0603
AGND
GND1
GND2
GND3
TEST
USB5V
2
30
32
8
31
6
7
3
USBTX
USBRX
1
2
3
4
V1
V2
VOA VIA
VIB VOB
ND1 G2
R29
NC
0603
R30
NC
0603
R31
NC
0603
OneNet
PacketPower
DIO1
DIO2
DIO3
DIO4
DIO5
DIO8
DIO9
DIO10
DIO11
DIO20
no connect
no connect
no connect
SMBRXD
SMBCLOCK
SMBTXLOB
SMBCKHDB
SMBALTRB
no connect
no connect
CE
SLE
SDATA
SREAD
SCLK
INT
DATAIO
DATACLK
GND
GND
CSN
TRXCE
PWRUP
MISO
SCK
DR
MOSI
CD
TXEN
no connect
17
15
13
11
9
7
5
3
1
18
16
14
12
10
8
4
6
2
GND
DIO1
DIO2
DIO3
DIO4
DIO5
DIO8
DIO9
DIO10
DIO9
DIO10
DIO11
DIO20
DIO11
GND
J10
EXPCONN
DIP100P18
V3P3
DIO20
DIO21
14
15
16
17
43
DIO8
39
40
DIO4
DIO5
5
DIO3
41
DIO6
FAULT
READY
ACTIVE
LED3
RED
LED100
MS 606-4300H1LC
LED4
GREEN
LED100
MS 606-4300H5LC
LED5
Y ELLOW
LED100
MS 606-4300H7LC
R33
470
0603
DIO21
DIO11
DIO20
R34
470
0603
R35
470
0603
(RELAY )
TP2
Wh
SIP100P2
V3P3
R36
10K
0603
R37
10K
0603
SEG27/DIO7
42
RELAY 1
RELAY 1
GND
3
60
OPT_TX/DIO2
OPT_RX/DIO1
DIO1
8
7
6
5
R28
NC
0603
SM Bus
V3P3
TX
RX
DIO2
24
4
17
20
26
1
2
3
4
5
6
6
48
U1B
78M6612-68QFP
QFN68
GNDD1
GNND2
R38
0
0603
GND
USB3V
R26
NC
0603
J10
Pins
PB
TEST
65
63
GND
1
61
C27
0.1uF V3P3
0603
R25
NC
0603
PULSE OUTPUT
V3P3
1
2
3
4
GND
R39
0
0603
R24
NC
0603
PMA0
PMA1
PMA2
PMA3
CKTST
TMUX
GND
J12
DEBUG
SIP100P4
R23
NC
0603
GND
GND
TP1
RTM
SIP100P4
18
19
20
7
11
12
25
26
27
28
29
30
31
32
33
34
35
36
37
44
45
46
21
22
23
13
24
47
68
2
1
R27
NC
0603
Optional
SW1
R56
R57
C28
V3P3
V3P3
V3P3
GND
GND
U3
ADUM3201
ADUM3201
ADUM3201ARZ-ND
22
21
10
11
9
U2
FT232QFN32
MS 895-FT232RQ
FTQFN32
USBGND
U2 internal 3.3V LDO
can source upto 50ma
Figure 9: 78M6612 Split-Phase Evaluation Board Electrical Schematic (2 of 2)
Rev. 1.1
25
78M6612 Split-Phase Evaluation Board User Manual
5.2
UM_6612_044
78M6612 Split-Phase Evaluation Board Bill of Materials
Table 5: 78M6612 Split-Phase Evaluation Board Bill of Materials
Item Qty
Reference
Part
PCB Footprint
Digi-Key/Mouser
Part Number
Part Number
1000pF
RC0603
445-1298-1-ND
C1608X7R2A102K
0.1uF
RC0603
445-1314-1-ND
C1608X7R1H104K
2
2
1
1
1
1
1
1
1
C3,C5,C20,
C31,C32
C1,C13,C18,
C21,C22,C26,
C27,C29,C30
C2,C15
C7,C8
C4
C28
C14
C25
C11
C12
C10
10uF, 25V
27pF
100pF
0.015uF
1uF
4.7uF
1uF, 20V
220uF,25V,lo imp
0.1uF, 450V
RC1812
RC0603
RC0603
RC0603
RC0603
RC1206
RC1206P
UUDB
C330
TPSC106K025R0500
C1608C0G1H270J
C1608C0G1H101J
C0603C153K3RACTU
C1608X5R1C105K
C3216X7R1E475K
C3216X7R1E105K/0.85
UUD1E221MNL1GS
C330C104KCR5TA
12
1
C9
22uF, 450V
XRL450B
13
1
J3
+5VEXT
RAPC
478-1762-1-ND
445-1274-1-ND
445-1281-1-ND
80-C0603C153K3R
445-1416-1-ND
445-1606-1-ND
445-1592-1-ND
647-UUD1E221MNL
80-C330C104KCR
140REA220M2WBK1625P
502-RAPC712
1
5
2
9
3
4
5
6
7
8
9
10
11
YES
Manufacturer
TDK
YES
REA220M2WBK-1625P
RAPC721A
14
2
J12,TP1
HEADER 4
4X1PIN
S1011E-36-ND
PBC36SAAN
15
1
J11
HEADER 6
6X1PIN
S1011E-36-ND
PBC36SAAN
16
1
J10
HEADER 18
9X2PIN
S2211E-18-ND
PBC18DFAN
17
2
J2,TP2
HEADER 2
2X1PIN
S1011E-36-ND
PBC36SAAN
18
19
1
1
USB
0.004, 1%, 2.5W
USB-B
2512
154-2442-E
66-ULR25R004FLFTR
154-2442-E
ULR25R004FLFTR
20
4
750, 0.1%
RC0603
RG16P750BCT-ND
RG1608P-751-B-T5
21
22
2
3
J22
R17
R2,R6,
R18,R41
R40,R42
R33,R34,R35
4.99,1%
470
RC1210
RC0603
660-SR732ETTE4R99F
P470GCT-ND
SR732ETTE4R99F
ERJ-3GEYJ471V
26
RoHS
TDK
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
AVX
TDK
TDK
KEMET
TDK
TDK
TDK
NICHICON
KEMET
Lelon
Switchcraft
Sullins Connector
Solutions
Sullins Connector
Solutions
Sullins Connector
Solutions
Sullins Connector
Solutions
Kobiconn
IRC/TT electronics
Susumu
KOA Speer
Panasonic
Rev. 1.1
UM_6612_044
78M6612 Split-Phase Evaluation Board User Manual
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
40
41
42
4
1
1
1
1
1
1
3
1
1
1
2
1
1
2
1
1
1
R4,R5,R7,R8
R1
R11
R9
R3
R22,538,R39
R32
R15,R36,R37
R16
R19
R10
LED1,LED2
LED3
LED4
CT1,CT2
RL1,RL2
L1
D1
1M, 0.1%
16.9K,1%
17.4K,1%
10.0K,1%
20.0K,1%
0
330
10K
1K
2K
10, 1.2W
GREEN
RED
YELLOW
50A,1:1000
16A,12V,SPDT
1000uH, 0.5A
1A, 400V
RC1206
RC0603
RC0603
RC0603
RC0603
RC0603
RC0603
RC0603
RC0603
RC0603
RC1210W
LED100
LED100
LED100
CT020P2A
ALZ
4800S
SMB
Digi-Key/Mouser
Part Number
660-RN732BTTD1004B25
660-SR732ETTE16R9F
660-SR732ETTE17R4F
660-SR732ETTE10R0F
660-SR732ETTE20R0F
P00GCT-ND
P330GCT-ND
P10KGCT-ND
P1.0KGTR-ND
P2.0KGTR-ND
660-RK73H2ETTE10R0F
606-4300H5LC
606-4300H1LC
606-4300H7LC
582-1084-ND
255-1446-ND
580-48102SC
621-S1GB-F
43
1
Q2
PNP,500MA,30V
SOT23T
610-CMPTA63
CMPTA63
44
45
46
47
48
1
1
1
1
1
ZNR1
U2
U3
U1
VR2
275V
FT232
ADUM3201
78M6612
UCC284
VE09P
32QFN
8SOIC
68QFN
SOIC8
576-V07E275P
895-FT232RQ
ADUM3201ARZ-ND
—
595-UCC284DP-ADJ
V07E275P
FT232QFN32
ADUM3201
78M6612-IM
UCC284DP-ADJ
49
1
VR1
BP5045A
SIP10BP
755-BP5045A
BP5045
50
1
Y1
32.768 KHZ SMD
12.5pF
ABS25
535-9166-1-ND
ABS25-32.768KHZ-T
Item Qty
Rev. 1.1
Reference
Part
PCB Footprint
Part Number
RoHS
Manufacturer
RN732BTTD1004B25
SR732ETTE16R9F
SR732ETTE17R4F
SR732ETTE10R0F
SR732ETTE20R0F
ERJ-3GEYJ000V
ERJ-3GEYJ331V
ERJ-3GEYJ103V
ERJ-3GEYJ102V
ERJ-3GEYJ202V
RK73H2ETTE10R0F
4300H5LC
4300H1LC
4300H7LC
CR8349-1000-N
ALZ12F12
48102SC
S1GB-13-F
YES
KOA Speer
KOA Speer
KOA Speer
KOA Speer
KOA Speer
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
KOA Speer
Chicago Miniature
Chicago Miniature
Chicago Miniature
CR Magnetics
Panasonic
Murata
Diodes, Inc
Central
Semiconductor
Littelfuse
FTDI
Analog Devices
Teridian
TI
ROHM
Semiconductor
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Abracon
27
78M6612 Split-Phase Evaluation Board User Manual
UM_6612_044
5.3 78M6612 Split-Phase Evaluation Board PCB Layouts
Figure 10: 78M6612 Split-Phase Evaluation Board PCB Top View
28
Figure 11: 78M6612 Split-Phase Evaluation Board PCB Bottom View
Rev. 1.1
UM_6612_044
78M6612 Split-Phase Evaluation Board User Manual
6 Ordering Information
Part Description
Order Number
78M6612 Split-Phase Evaluation Board
78M6612SP-EVM-1
7 Included Documentation
The following 78M6612 documents are included on the CD:
78M6612 Data Sheet
78M6612 Split-Phase Evaluation Board User Manual
8 Contact Information
For more information about Maxim products or to check the availability of the 78M6612, contact technical
support at www.maxim-ic.com/support.
Rev. 1.1
29
78M6612 Split-Phase Evaluation Board User Manual
UM_6612_044
Revision History
REVISION
DATE
1.0
11/8/2010
Initial release
5/24/2011
Added Section 2.2, Relay Configuration.
Deleted Section 3, Command Line Interface (CLI);
these command descriptions have been moved to the
6612_SPL_S2+3_URT_V1_14 Split-Phase Firmware
Description Document.
1.1
30
DESCRIPTION
PAGES
CHANGED
—
10
17-27
Rev. 1.1