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| 型號： | ADM1185ARMZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 電源管理 |
| 英文描述： | Quad Voltage Monitor and Sequencer |
| 中文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封裝： | LEAD FREE, MSOP-10 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 226K |
| 代理商： | ADM1185ARMZ |
Quad Voltage Monitor and Sequencer
Preliminary Technical Data
ADM1185
FEATURES
Powered from 2.7V to 5.5V on the VCC pin
Monitors Four Supplies via 0.8% Accurate Comparators
Four inputs can be programmed for voltage levels with
resistor dividers
Three Open-Drain Enable Outputs
Open-Drain Power Good Output
10-pin MSOP Package
APPLICATIONS
Monitor and Alarm Functions
Power Supply Sequencing
Telecommunication and Datacommunication Equipment
PC/Servers
GENERAL DESCRIPTION
Rev. PrK June 2006
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2006 Analog Devices, Inc. All rights reserved.
www.analog.com
The ADM1185 is an integrated four channel voltage monitoring
device. A 2.7V to 5.5V power supply is required on the VCC pin
to power the device.
Four precision comparators monitor four voltage rails. All
comparators have a 0.6V reference with a worst-case accuracy
of 0.8%. Resistor networks external to the VIN1-VIN4 pins set
the trip points.
There are four open-drain outputs on the device. A digital core
interprets the comparator outputs and asserts the outputs as
appropriate.
FUNCTIONAL BLOCK DIAGRAM
OUT1
PWRGD
VCC
VIN2
REF=0.6V
VIN3
REF=0.6V
VIN4
REF=0.6V
REF=0.6V
GND
OUT2
OUT3
LOGIC
POWER AND
REFERENCE
GENERATOR
REF=0.6V
VIN1
ADM1185
Figure 1.
APPLICATIONS DIAGRAM
OUT1
OUT2
OUT3
2.5V OUT
1.8V OUT
1.2V OUT
PWRGD
VIN4
VIN2
VIN3
POWER
GOOD
EN
Regulator1
3.3V IN
EN
OUT
IN
2.5V OUT
EN
OUT
IN
1.8V OUT
OUT
IN
GND
1.2V OUT
Regulator2
Regulator3
VCC
VIN1
ADM1185
Figure 2.
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