Copyright

© ANPEC Electronics Corp.

Rev. A.4 - Jan., 2009

APR3011/2/3

www.anpec.com.tw

1

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.

MicroPower Microprocessor Reset Circuit

General Description

The APR3011/2/3 are designed to monitor voltage sup-

plies in

µP and digital systems. The quiescent current is

extremely low, typically 1.5µA, making it ideal for portable

battery operated equipment. The APR3011/2/3 operate

by monitoring the system power supply voltage. When

the input voltage drops below a fixed threshold, the de-

vice asserts a reset signal for a fixed time period after Vcc

rises above the fixed threshold. The APR3011/2/3 series

are available with three output stage versions: APR3011

push-pull active low output, APR3012 push-pull active

high output, and APR3013 open drain active low output.

They are also designed to reject fast line transient glitches

on V

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

SOT-23-3 (Top View)

SOT-23-5 (Top View)

SOT-89 (Top View)

Pin Configuration

Features

Applications

•

Computers

•

Cell Phones

•

Portable Electronics

•

µP Power Supply Monitoring

•

1.2V to 6V Input Voltage Range

•

Low Quiescent Current : Less than 1.5

µA

•

High Accuracy Detection Threshold : ±1.5%

•

Fixed Trimmed Reset Thresholds for 1.5V, 1.75V,

2.32V, 2.63V, 2.93V, 3.08V, 3.9V, 4.38V, 4.63V

•

Reset Timeout Period 250ms

•

Available Output Configurations

- Open-Drain Output

- CMOS Active High Output

- CMOS Active Low Output

•

SOT-23-3, SOT-23-5, and SOT-89 Packages

•

No External Components

•

Lead Free and Green Devices Available

(RoHS Compliant)

1

2

3

GND

(3011/3)

(3012)

Reset

Reset

GND

NC

NC

1

2

3

4

5

(3011/3)

(3012)

Reset

Reset

GND

V

CC

2

1

3

(3011/3)

(3012)

Reset

Reset