Datasheet > APR3021-39B

APR3021-39B

更新时间： 2025-07-14 04:49:39

品牌	Logo	应用领域
茂达 - ANPEC		微处理器复位电路
页数	文件大小	规格书
15页	142K
描述
MicroPower Microprocessor Reset Circuit

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数据手册

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APR3021-39B 数据手册

APR3021/2/3

MicroPower Microprocessor Reset Circuit

Features

General Description

•

1.2V to 5.5V Input Voltage Range

The APR3021/2/3 are designed to monitor voltage

supplies in µP and digital systems. The quiescent

current is extremely low, typically 1.5 µA, making it

Low Quiescent Current : less Than 1.5 µA

High accuracy detection threshold : ±1.5%

Fixed trimmed reset thresholds for 1.5V, 1.75V, ideal for portable battery operated equipment. The

2.32V, 2.63V, 2.93V, 3.08V, 3.9V, 4.38V.

Reset Timeout Period 250ms

APR3021/2/3 operate by monitoring the system

power supply voltage. When the input voltage drops

below a fixed threshold, the device asserts a reset

signal for a fixed time period after Vcc rises above

the fixed threshold. The APR3021/2/3 series is avail-

able with three output stage versions : APR3021

push-pull active low output, APR3022 push-pull ac-

tive high output and APR3023 open drain active low

output. They are also designed to reject fast line tran-

sient glitches on Vcc. The APR3021/2/3 are come in

a miniature SOT-23, SOT-23-5, SOT-89 packages.

•

Available output configurations

- Open-drain output

- CMOS active high output

- CMOS active low output

•

SOT-23 , SOT-23-5 and SOT-89 packages

No external components

Applications

•

Computers

Cell Phones

Pin Configuration

Portable Electronics

µP Power Supply Monitoring

G N D

(3021/3)

R eset

(3022) R eset

(3021/3)

(3022)Reset

C C

GND V^CC

Reset

SOT-23 (Top View)

SOT-23-5 (Top View)

(3021/3)

(3022) Reset

Reset

V_CC

GND

SOT-89 (Top View)

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise

customers to obtain the latest version of relevant information to verify before placing orders.

Rev. A.2 - Oct., 2003

www.anpec.com.tw

12 3 4 5 6 7...15

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