AAT3520IGY-2.63-200-T1 Advanced Analogic Technologies, Inc., AAT3520IGY-2.63-200-T1 Datasheet

AAT3520IGY-2.63-200-T1

Manufacturer Part Number

AAT3520IGY-2.63-200-T1

Description

Manufacturer

Advanced Analogic Technologies, Inc.

Datasheet

1.AAT3520IGY-2.63-200-T1.pdf (9 pages)

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Company:

Meier Automation Equipment Co., Limited

Part Number:

AAT3520IGY-2.63-200-T1

Manufacturer:

ANALOGIC

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20 000

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General Description

The AAT3520 series of PowerManager products is

part of AnalogicTech's Total Power Management

IC™ (TPMIC™) product family.

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 the need for external

components.

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 V

30ms and 150ms minimum periods are available.

The AAT3520 product series is guaranteed to oper-

ate down to 1.2V and is designed to ignore fast line

transients appearing on V

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 cur-

rent is extremely low, typically 1µA, making it ideal

for portable battery-operated equipment.

The AAT3520/2/4 are available in a Pb-free, 3-pin

SOT23 package and are specified over the -40°C

to +85°C operating temperature range.

3520.2006.03.1.2

Typical Application

has risen back above the fixed threshold;

The AAT3520 series operates by

*AAT3524 Only

. The AAT3520 series

AAT3520

AAT3522

AAT3524

These micro-

GND

VCC

MicroPower™ Microprocessor Reset Circuit

(RESET)

RESET

Features

•

Applications

•

100kΩ

(nominal)

Input Voltage Range: 1.2V to 5.5V

Operation Down to 1.2V

Extremely Low Quiescent Current: <2µA

High Accuracy Detection Threshold: ±1.5%

Monitor Power Supply Voltages

Fixed Thresholds from 2.2V to 4.6V

Reset Pulse Width Options

— Minimum 30ms or 150ms

— Fast Propagation Delay <20µs

Available Output Configurations:

— Open-Drain Output

— CMOS Active High Output

— CMOS Active Low Output

Temperature Range: -40°C to +85°C

3-Pin SOT23 Package

4kV ESD Rating

Cell Phones

Embedded Systems

Intelligent Instruments

Notebook Computers

Portable Electronics

RESET

INPUT

GND

VCC

µP

PowerManager

AAT3520/2/4

™

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AAT3520IGY-2.63-200-T1 Summary of contents

Page 1

General Description The AAT3520 series of PowerManager products is part of AnalogicTech's Total Power Management IC™ (TPMIC™) product family. processor reset circuits are ideal for monitoring volt- age supplies in portable systems, where extended battery life is critical. They provide ...

Page 2

Pin Descriptions Pin # Symbol 1 GND RESET (AAT3520) 2 RESET (AAT3522, AAT3524) 3 VCC Part Number Descriptions Part Number AAT3520 AAT3522 AAT3524 Pin Configuration (RESET) RESET 2 MicroPower™ Microprocessor Reset Circuit Function Ground connection. RESET output remains high while ...

Page 3

Absolute Maximum Ratings T = 25°C, unless otherwise noted. A Symbol Description GND CC CC RESET to GND (Push-Pull Output) V RESET RESET to GND (Open Drain Output) I Maximum Continuous Input Current MAX I RESET/RESET Current ...

Page 4

Electrical Characteristics -40°C to +85°C, unless otherwise noted. Typical values are versions 3.3V for 3.08/2.93V versions Symbol Description V Operation Voltage CC I Quiescent Current Q V ...

Page 5

Typical Characteristics Supply Current vs. Temperature 1.40 1. 1.00 0. 0.60 0.40 0.20 0.00 -40 - Temperature (°C) Normalized Power-Up Reset Timeout vs. Temperature 1.5 1.4 1.3 1.2 1.1 1 ...

Page 6

Functional Block Diagram VCC Functional Description General During start-up, the reset pin on a microprocessor ensures that it is fully reset and starts known condition. The AAT3520 series of microprocessor reset devices monitor the supply voltage to ...

Page 7

Applications Information Reset Output Options The AAT3524 has an active low open drain output and the AAT3520/2 have a push-pull output. The AAT3524 may be used in multiple voltage systems with an external pull-up resistor. This allows the AAT3524 to ...

Page 8

... Factory Trimmed Reset Thresholds Ordering Part Number 2 Marking AAT3522IGY-2.20-200-T1 DBXYY AAT3520IGY-2.32-200-T1 AAT3522IGY-2.32-200-T1 DTXYY AAT3524IGY-2.32-200-T1 AAT3522IGY-2.45-200-T1 DXXYY AAT3520IGY-2.63-200-T1 GNXYY AAT3522IGY-2.63-200-T1 CAXYY AAT3524IGY-2.63-200-T1 CWXYY AAT3520IGY-2.93-200-T1 CZXYY AAT3522IGY-2.93-50-T1 FVXYY AAT3522IGY-2.93-200-T1 CCXYY AAT3524IGY-2.93-200-T1 FPXYY AAT3520IGY-3.08-50-T1 EFXYY AAT3520IGY-3.08-200-T1 CNXYY AAT3522IGY-3.08-50-T1 CYXYY AAT3522IGY-3.08-200-T1 CBXYY AAT3524IGY-3.08-200-T1 BGXYY AAT3520IGY-4.38-200-T1 AAT3522IGY-4 ...

Page 9

... All dimensions in millimeters. © Advanced Analogic Technologies, Inc. AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit patent licenses, copyrights, mask work rights, or other intellectual property rights are implied. AnalogicTech reserves the right to make changes to their products or specifications or to discontinue any product or service without notice. ...

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