ANPEC APR3023-43BI-TR, APR3023-43AC-TR, APR3023-39BI-TR, APR3023-39BC-TR, APR3023-39AI-TR Datasheet

Copyright  ANPEC Electronics Corp. Rev. A.2 - Oct., 2003

APR3021/2/3

www.anpec.com.tw1

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

Features General Description

Applications

•

Computers

• Cell Phones

• Portable Electronics

• µP Power Supply Monitoring

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 ideal for portable battery operated equipment. The 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 available with three output stage versions : APR3021 push-pull active low output, APR3022 push-pull active high output and APR3023 open drain active low output. They are also designed to reject fast line transient glitches on Vcc. The APR3021/2/3 are come in a miniature SOT-23, SOT-23-5, SOT-89 packages.

Pin Configuration

SOT-23 (Top View)

Reset

12

3

V

CC

GND

Reset

(3021/3)

(3022)

SOT-23-5 (Top View)

SOT-89 (Top View)

VCCGND

NCNC

123

45

Reset Reset

(3021/3)

(3022)

GND

213

Reset Reset

(3021/3)

(3022)

V

CC

• 1.2V to 5.5V 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.

• Reset Timeout Period 250ms

• 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

Copyright  ANPEC Electronics Corp. Rev. A.2 - Oct., 2003

APR3021/2/3

www.anpec.com.tw2

Package Code A : S OT-2 3 B : SO T-23- 5 D : S O T - 89 Temp. Range

C : 0 to 70 C I : -40 to 85 C

Handling Code

TR : Tape & Reel

Voltage Code :

15 : 1.5V ~ 43 : 4.38V

APR302 1/2/3 -

Handling Code Temp. Range Package Code

Voltage Code

Date C od e

X X

Voltage Code

A:1.5V B:1.75V C:2.32V D:2.63V E:2.93V F:3.08V G:3.9V H:4.38V

21/2/3

APR3021/2/3 XXXXX 15

XXXXX - Date Code ; 15 - 1.5VAPR3021/2/3 -15 D :

APR3021/2/3 A/B :

Ordering and Marking Information

Absolute Maximum Ratings

Symbol Parameter Value Unit

VCC V

CC

to GND -0.3 to 6 V

RESET to GND (Push-Pull Output) -0.3 to VCC +0.3

V

RESET

RESET to GND (Open Drain Output) -0.3 to 6

V

I

MAX

Maximum Continuous Input Current 20 mA

I

RESET

RESET/RESET Current 20 mA

dVcc/dt Rate of Rise of VCC 100

V/µs

TJ Junction Temperature Range -40 to 150 °C

TL Lead Temperature (Soldering, 10 second) 260 °C

SOT-23 357 SOT-23-5 357

R

TH,JA

Thermal Resistance – Junction to Ambient

SOT-89 180

°C/W

PD Power Dissipation Internally Limited W

°°

Pin Descrpition

No. Name

Description

RESET

(APR3021/3)

RESET output remains low while VCC is below the reset threshold and remains so for a fixed time period after V

CC

raises above the reset threshold

1

RESET

(APR3022)

RESET output remains high while V

CC

is below the reset threshold and remains

so for a fixed time period after V

CC

raises above the reset threshold.

2 VCC Supply Voltage (+1.2V to +6V) 3 GND Ground connection

Note: The pin sequence here might not be correct for all different package types, and please refer pin

configuration in page1 for correct pin assignment.

Copyright  ANPEC Electronics Corp. Rev. A.2 - Oct., 2003

APR3021/2/3

www.anpec.com.tw3

Block Diagram

V

c c

GND

V

REF

Reset

Generator

+ Timer

Oscillator

RESET

APR3021

V

c c

GND

V

REF

Reset

Generator

+ Timer

Oscillator

RESET

APR3022

V

c c

GND

V

REF

Reset

Generator

+ Timer

Oscillator

RESET

APR3023

Copyright  ANPEC Electronics Corp. Rev. A.2 - Oct., 2003

APR3021/2/3

www.anpec.com.tw4

Part Number Description

Part Number Part Description

APR3021 Reset Output Push Pull Active Low with Delay APR3022 Reset Output Push Pull Active High with Delay APR3023 Reset Output Open Drain Active Low with Delay

Electrical Characteristics

APR3021/2/3

Symbol

Parameter Test Conditions

Min. Typ. Max.

Unit

VCC

Supply Voltage

1.2 6

V

ICC

Supply Current V

CC

=1.5V~6V 1.5 4

µA

T

A

=-40 to 85°C 3 5

T A=25°C ±1.5%

VTH

Reset Threshold

T

A

=-40 to 85°C ±2%

V

HYST

Hysteresis Range 20 mV

T

RTP

Reset Timeout Period

150 250 350

ms

VOL

Reset Output Low I

SINK

=1.2mA 0.5 V

VOH

Reset Output High I

SOURCE

=0.6mA 0.8*VCC

TD

V

CC

to Reset Delay VCC=VTH to (VTH-100mV) 25

µS

ILE

Reset Output Leakage 0.5

µA

VIN = 5V, TA = -40 to 85°C unless otherwise noted. Typical values are at TA=25°C, VCC = 5V for 4.38V versions, VCC = 3.3V for 3.08/2.93V versions, VCC = 3.0V for 2.63V. versions and VCC = 2.5V for 2.32V versions, VCC = 2.0V for 1.75V versions , VCC = 1.8V for 1.5V versions.

Application Circuit

V

CC

V

CC

GND

100k

APR3023 RESET

RESET INPUT

µP

V

CC

GND

V

CC

V

CC

GND

RESET (RESET)

RESET INPUT

µP

V

CC

GND

APR3021 APR3022

Copyright  ANPEC Electronics Corp. Rev. A.2 - Oct., 2003

APR3021/2/3

www.anpec.com.tw5

Timing Chart

Vcc

RESET

Reset Timeout Period 250ms

Vc c t o Res et Delay 25us

Reset Threshold Reset Threshold

RESET

(APR3022)

(APR3021/3)