Datasheet > AAT3524IGY-308-200-T1

AAT3524IGY-308-200-T1

更新时间： 2022-11-27 07:59:34

品牌	Logo	应用领域
ANALOGICTECH		微处理器复位电路
页数	文件大小	规格书
8页	227K
描述
MicroPower Microprocessor Reset Circuit

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AAT3520/2/4

MicroPower Microprocessor Reset Circuit

™

PowerManager

General Description

Features

The AAT3520 Series of PowerManager™ products

is a member of AATI's Total Power Management

IC™ (TPMIC™) product family. These micro-

processor reset circuits are ideal for monitoring volt-

age supplies in portable systems, where extended

battery life is critical. They provide a low cost, reli-

able solution by eliminating external components.

The AAT3520 series operates by monitoring the

system power supply voltage. When the input volt-

age drops below a fixed threshold, the device

asserts a reset signal for a fixed time period after

V_CChas risen back above the fixed threshold; 30ms

and 150ms minimum periods are available. The

AAT3520 product series is guaranteed to operate

down to 1.2V and designed to ignore fast line tran-

sients appearing on V_CC. The AAT3520 series is

available with three output stage versions: AAT3520

push-pull active high output, AAT3522 push-pull

active low output and AAT3524 open drain active

low output. The quiescent supply current is

extremely low, typically 1µA, making it ideal for

portable battery operated equipment.

•

1.2V to 5.5V Input voltage range

Operation down to 1.2V

Extremely low quiescent current: less than 2µA

High accuracy detection threshold: 1.5ꢀ

Monitor Power Supply Voltages

Fixed thresholds from 2.2V to 4.6V

Reset pulse width options

•

Minimum 30 ms or 150ms

Fast propagation delay <20µs

•

Available output configurations:

•

Open-drain output

CMOS active high output

CMOS active low output

•

Temp range -40 to 85°C

3 pin SOT23 package

Applications

•

Notebook Computers

Cell Phones

Portable Electronics

Embedded Systems

Intelligent Instruments

The AAT3520/2/4 are available in a 3 pin SOT23

package and are specified over -40° to 85°C oper-

ating temperature range.

Typical Application

V_CC

100k

(nominal)

AAT3520

AAT3522

AAT3524

RESET

(RESET)

INPUT

GND

*AAT3524 Only

3520.2002.2.0.9

12 3 4 5 6 7 8

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