POWER SUPPLY Sequencing
2007
CONTENTS
A N A L O G
D E V I C E S
A P P L I C A T I O N S
B U L L E T I N
World’s Leading Voltage Sequencing and Monitoring Products
World’s Leading Voltage Sequencing
and Monitoring Products. . . . . . . . 1
ADM1185—the World’s Most
Accurate Quad Voltage Sequencer
and Monitor. . . . . . . . . . . . . . . . . . 1
Super Sequencer™ Devices
ADM1062 to ADM1069:
Highest Accuracy Super Sequencers
with Margining Control . . . . . . . . . 2
• Monitoring of up to 12 voltages on
a single device
ADM1185: 0.8% Accurate Quad
Monitor and Sequencer. . . . . . . . . 3
ADM6819 and ADM6820:
FET Drive Simple Sequencer
Devices . . . . . . . . . . . . . . . . . . . . . 4
ADM1085 to ADM1087:
Simple Sequencers . . . . . . . . . . . . 5
Analog Devices’ Sequencing
Portfolio Overview. . . . . . . . . . . . . 6
• 1% accurate thresholds across all
voltages and temperatures
• Extremely powerful and flexible
sequencing solution
Simple Sequencer™ Devices
• Low cost sequencers
• Capacitor adjustable timeout
• Tiny SC70 packaging
Typical power-up and power-down sequence
Now Analog Devices Launches the ADM1185—the World’s
Most Accurate Quad Voltage Sequencer and Monitor
w w w . a n a l o g . c o m / s e q u e n c e r s
ADM1062 to ADM1069: Highest Accuracy Super Sequencer Devices with Margining Control
A
DI’s Super Sequencer family consists of configurable supervisory and sequencing devices that offer a single-chip solution for
supply monitoring and sequencing in multisupply systems. The devices offer up to 10 programmable supply voltage monitor inputs,
and ranges from 0.6 V to 14.4 V can be detected directly. Five of the inputs can also be configured as general-purpose logic inputs.
An on-chip, 12-bit ADC allows readback of the supply voltages, offering an extra level of supply supervision. This can be used in a closedloop system with four or six on-chip DACs for supply voltage adjustment, margining, and trimming. ADM1062 to ADM1069 have flexible,
programmable state machine-based sequencing engines. To store configuration parameters, 512 bytes of on-chip EEPROM are available.
"%.
#*5"%$
*/1654
4&26&/$*/(
&/(*/&
0651654
0651654
*/1654
.69
4.#VT
*/5&3'"$&
$0/530--0(*$
"/%&&130.
*/5&3/"-&95&3/"5&.14&/4*/(
%/
%1
%"$0651654
functional Block Diagram
Analog Devices Super Sequencer Devices Portfolio
Part
Number
Supervising
Accuracy
Sequencing
Monitor
Inputs
Enable
Outputs
Voltage Readback
and Margining
Temp
Sensing
Package
ADM1060
2.5%
Combinational logic
7
9
—
—
28-lead TSSOP
ADM1062
1%
State machine
10
10
12-bit ADC + 6 DACs
2°C
40-lead LFCSP/
48-lead TQFP
ADM1063
1%
State machine
10
10
12-bit ADC
2°C
(32)
40-lead LFCSP/
48-lead TQFP
ADM1064
1%
State machine
10
10
12-bit ADC
—
40-lead LFCSP/
48-lead TQFP
ADM1065
1%
State machine
10
10
—
—
40-lead LFCSP/
48-lead TQFP
ADM1066
1%
State machine
12
10
12-bit ADC + 6 DACs
—
40-lead LFCSP/
48-lead TQFP
ADM1067
1%
State machine
10
10
6 DACs
—
40-lead LFCSP/
48-lead TQFP
ADM1068
1%
State machine
8
8
—
—
32-lead LQFP
ADM1069
1%
State machine
8
8
12-bit ADC + 4 DACs
—
32-lead LQFP
w w w . a n a l o g . c o m / s e q u e n c e r s
HIGH ACCURACY TRACKING
—KEEPS RAILS WITHIN
100 mV OF EACH OTHER
ADM1185: 0.8% Accurate Quad Monitor and Sequencer
T
he ADM1185 combines four accurate comparators with sequencing logic to provide a complete monitoring and sequencing solution for four
voltage rails. External resistor dividers allow user programmability of the voltage thresholds to be monitored to a minimum of 0.6 V. 0.8%
NEW! sequencing logic interpretsCOMING
accurate comparators ensure voltage rails are monitored to the highest possible accuracy. Intelligent
the status of
SOON
the inputs and provides enable signals for downstream regulators and dc-to-dc converters and a PWRGD output. Internal sequencing delays can be
extended with external capacitors.
Features
• Four accurate comparators
WORLD’S MOST
ACCURATE QUAD
SEQUENCER/MONITOR
7$$
• Accuracy = 0.8%
PIN-FOR-PIN
108&3"/%
3&'&3&/$&
UPGRADE
FOR
(&/&3"503
MAX6819 and
MAX6820
• 0.6 V references
• Trip points set with external resistors
• Four open-drain outputs
3&'7
065
7*/
• Three enable outputs for regulators
3&'7
• One power-good (PWRGD) output
065
• Outputs valid for VCC as low as 1 V
7*/
• Power-up sequencing:
3&'7
-0(*$
• Internal delay on OUT1 = 190 ms
065
7*/
• Internal delay on PWRGD = 190 ms
3&'7
• Voltage monitoring:
183(%
• If VIN1 fails: turn all outputs off
7*/
• If VIN2 to VIN4 fail: turn PWRGD off
3&'7
• VCC supply range: 3 V to 5.5 V
• 10-lead MSOP
• Multiple parts can be cascaded for extended
(/%
monitoring/sequencing
Functional Block Diagram
w w w . a n a l o g . c o m / s e q u e n c e r s
COMING
SOON
NEW!
ADM6819 and ADM6820: FET Drive Simple Sequencer Devices
T
he ADM6819
ADM6820 are voltage sequencers that provide an accurate time delay between two voltage rails powering up. An
WORLD’Sand
MOST
on-board
chargeQUAD
pump generates a voltage to control the gate of an N-channel FET. The ADM6819 has a fixed 200 ms time delay and
ACCURATE
SEQUENCER/MONITOR
an enable input. The ADM6820 uses an external capacitor to accurately set the sequencing delay between the two monitored supplies.
The ADM6819 and ADM6820 are packaged in a 6-lead SOT-23 package.
PIN-FOR-PIN
UPGRADE FOR
MAX6819 and
MAX6820
Features
• Powered from 2.95 V to 5.5 V on
either VCC1 or VCC2 pins
7$$ 7$$
$)"3(&
16.1
• Adjustable primary supply monitor monitors
down to 0.62 V
67-0
• Multiple devices can be cascaded to provide a sequencing
solution for more than two supplies
-0(*$
4&57
• On-board charge pump to generate gate drive
'&5
%3*7&3
("5&
7
• ADM6819—enable input and preset 200 ms delay
• ADM6820—programmable time delay via capacitor
• Tiny SOT-23 packages
5*.&3
"%.
"%.
7
(/%
&/"%.
4&5%"%.
FUNCTIONAL BLOCK DIAGRAM
7065
2
7*/
7065
2
7*/
("5&
7$$
7$$
3
7$$
"%.
4&57
3
3
&/
(/%
7
"%.
4&57
3
&/
7
("5&
7$$
7065
70-5"(&
7*/
7
065165
70-5"(&4
&/
(/%
5*.&
&/"#-&
APPLICATIONS DIAGRAM
OUTPUT WAVEFORMS
w w w . a n a l o g . c o m / s e q u e n c e r s
ADM1085 to ADM1087: Simple Sequencer Devices
T
he ADM1085 to ADM1087 Simple Sequencer Devices provide an easy, yet powerful and flexible solution to the problem of power supply
sequencing. They offer programmable time delays from 5 ms to several seconds and can be cascaded in a variety of ways to give
sequencing of multiple power supplies. A choice of active-low or active-high outputs, and push-pull or high voltage open-drain output
stages ensures compatibility with the widest possible range of voltage regulators and dc-to-dc converters. The ADM1085 to ADM1087 are
available in a tiny, 6-lead SC70 package.
Features
• Provide time delays between enabling of regulators
• Can be cascaded with regulators for multiple supply
sequencing
• Power supply monitoring from 0.6 V
• Output stages
• High voltage (up to 22 V) open-drain output
(ADM1085/ADM1087)
• Push-pull outputs (ADM1086)
• Fixed (5 ms typ) or capacitor adjustable time delays
• Enable input
• Low power consumption (15 mA)
• Specified over –40°C to +125°C temperature range
LOW COST
SEQUENCING
SOLUTION
7
7$$
&/
*/
7*/
7
316--61
WORLD’S SMALLEST
SIMPLE SEQUENCER
DEVICES
7*/
&/065
&/
*/
7$$*
"%."%.
7
065
%$50%$
$0/7&35&3
"%.
$"1"$*503
"%+645"#-&
5*.&065
&/
(/%
$U&/
&/065
&/065
$&95 &/*/&/*/
*1.0416--610/"%.0/-:
7
065
%$50%$
$0/7&35&3
7
316--61
7*/
&/065
&/
*/
"%.
7
065
%$50%$
$0/7&35&3
7*/
&/065
&/
*/
&/
$U&/
"%.
&/
7
$U&/
7
065
%$50%$
$0/7&35&3
7
7
7
&/"#-&
$0/530-
U&/
U&/
U&/
"%.64&%'03108&3614&26&/$*/(
w w w . a n a l o g . c o m / s e q u e n c e r s
Analog Devices Sequencing Portfolio
Part
Number
Number of
Supplies
Monitored
Voltage
Monitoring
Accuracy
Number
of Output
Drivers
FET Drive/
Enable
Output
Voltage
Readback
Supply
Adjustment/
Margining
Programming
Method
Package
Price
@ 1k
($U.S.)
ADM1085
1
<7%
1
Enable
—
—
Analog
6-lead SC70
0.34
ADM1086
1
<7%
1
Enable
—
—
Analog
6-lead SC70
0.34
ADM1087
1
<7%
1
Enable
—
—
Analog
6-lead SC70
0.34
ADM6819
2
<2.6%
1
FET Drive
—
—
Analog
6-lead SOT-23
1.20
ADM6820
2
<2.6%
1
FET Drive
—
—
Analog
6-lead SOT-23
1.20
ADM1185
4
<0.8%
4
Enable
—
—
Analog
10-lead MSOP
1.20
ADM1060
7
<2.5%
9
Both
—
—
SMBus
28-lead TSSOP
6.50
ADM1068
8
<1%
8
Both
—
—
SMBus
32-lead LQFP
4.00
ADM1069
8
<1%
8
Both
12-bit ADC
12-bit ADC +
4 DACs
SMBus
32-lead LQFP
4.35
ADM1062
10
<1%
10
Both
12-bit ADC
12-bit ADC +
6 DACs
SMBus
40-lead LFCSP/
48-lead TQFP
9.00
ADM1063
10
<1%
10
Both
12-bit ADC
—
SMBus
40-lead LFCSP/
48-lead TQFP
8.25
ADM1064
10
<1%
10
Both
12-bit ADC
—
SMBus
40-lead LFCSP/
48-lead TQFP
7.75
ADM1065
10
<1%
10
Both
—
—
SMBus
40-lead LFCSP/
48-lead TQFP
5.75
ADM1067
10
<1%
10
Both
—
6 DACs
SMBus
40-lead LFCSP/
48-lead TQFP
6.50
ADM1066
12
<1%
10
Both
12-bit ADC
12-bit ADC +
6 DACs
SMBus
40-lead LFCSP/
48-lead TQFP
8.50
Analog Devices Sequencer Evaluation Systems
."*/
4611-:
-&%
."*/4611-:
0/0''
ADM1062–ADM1069 Main Evaluation Board
*/165
4611-:
Analog Devices, Inc.
Europe Headquarters
Wilhelm-Wagenfeld-Str.6
80807 Munich
Germany
Tel: 49.89.76903.0
Fax: 49.89.76903.157
183(%
-&%
ò"%+645"#-&
4611-*&4
4611-:
-&%4
ADM1185 Evaluation Board
ADM1062–ADM1069 Micro Evaluation Board
Analog Devices, Inc.
Japan Headquarters
Analog Devices, KK
New Pier Takeshiba
South Tower Building
1-16-1 Kaigan, Minato-ku,
Tokyo, 105-6891
Japan
Tel: 813.5402.8200
Fax: 813.5402.1064
Analog Devices, Inc.
Southeast Asia
Headquarters
Analog Devices
22/F One Corporate Avenue
222 Hu Bin Road
Shanghai, 200021
China
Tel: 86.21.5150.3000
Fax: 86.21.5150.3222
For details on ordering evaluation kits,
please contact sequencing@analog.com
©2006 Analog Devices, Inc. All rights reserved.
Trademarks and registered trademarks are the property
of their respective owners.
Printed in the U.S.A.
BR05342-40-11/06
Analog Devices, Inc.
Worldwide Headquarters
Analog Devices, Inc.
One Technology Way
P.O. Box 9106
Norwood, MA 02062-9106
U.S.A.
Tel: 781.329.4700
(800.262.5643,
U.S.A. only)
Fax: 781.461.3113
w w w . a n a l o g . c o m / s e q u e n c e r s