ADM1185

更新时间： 2024-09-17 04:31:19

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
12页	233K
描述
Quad Voltage Monitor and Sequencer

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数据手册

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ADM1185 数据手册

Quad Voltage Monitor and Sequencer

ADM1185

Preliminary Technical Data

FEATURES

Powered from 2.7V to 5.5V on the VCC pin

FUNCTIONAL BLOCK DIAGRAM

Monitors Four Supplies via 0.8% Accurate Comparators

VCC

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

ADM1185

POWER AND

REFERENCE

GENERATOR

REF=0.6V

OUT1

VIN1

REF=0.6V

APPLICATIONS

Monitor and Alarm Functions

Power Supply Sequencing

Telecommunication and Datacommunication Equipment

PC/Servers

OUT2

OUT3

VIN2

VIN3

REF=0.6V

LOGIC

GENERAL DESCRIPTION

VIN4

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.

PWRGD

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.

GND

Figure 1.

There are four open-drain outputs on the device. A digital core

interprets the comparator outputs and asserts the outputs as

appropriate.

APPLICATIONS DIAGRAM

3.3V IN

2.5V OUT

1.8V OUT

1.2V OUT

Regulator1

VCC

2.5V OUT

1.8V OUT

VIN1

VIN2

OUT

OUT1

OUT2

VIN3

VIN4

OUT3

Regulator2

OUT

ADM1185

GND

PWRGD

Regulator3

1.2V OUT

OUT

POWER

GOOD

Figure 2.

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 registeredtrademarks arethe 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

www.analog.com

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