TC51N3002ECBTR 데이터 시트보기 (PDF) - Microchip Technology

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TC51N3002ECBTR

1µA Voltage Detector with Output Delay

Microchip Technology 

TC51

1A Voltage Detector with Output Delay

Features

• Precise Detection Thresholds: ±2.0%

• Small Package: 3-Pin SOT-23A

• Low Supply Current: Typ. 1A

• Wide Detection Range: 1.6V to 6.0V

• Wide Operating Voltage Range: 0.7V to 10V

• Built-in Delay Circuit: 50msec to 200 msec

• Open-Drain Output

Applications

• Battery Voltage Monitoring

• Microprocessor Reset

• System Brown-out Protection

Device Selection Table

Part Number

Package

Temp. Range

TC51-xxxxxxxxxx 3-Pin SOT-23A -40°C to +85°C

Other output voltages are available. Please contact Microchip

Technology Inc. for details.

Package Type

3-Pin SOT-23A

VIN

3

TC51

1

2

VOUT

VSS

NOTE: 3-Pin SOT-23A is equivalent to the EIAJ SC-59.

General Description

The TC51 is a very low power, open drain output,

CMOS voltage detector with built-in delay. It is

particularly well-suited for battery powered applications

because of its extremely low 1A operating current and

small surface-mount packaging. Each part is laser-

trimmed to the desired threshold voltage, which can be

specified from 1.6V to 6.0V. The standard built-in

output delay is 50msec-200msec.

The device includes a comparator, low-current high-

precision reference, laser-programmed voltage divider,

hysteresis circuit and output driver with digital delay

timer.

In operation, the TC51’s output (VOUT) remains in the

logic HIGH state as long as VIN is greater than the

specified threshold voltage (VDET -). When VIN falls

below VDET -, the output is immediately driven to a logic

LOW. VOUT remains LOW until VIN rises above VDET -

by an amount VHYST, whereupon it returns to a logic

HIGH after expiration of the built-in delay time.

Functional Block Diagram

VIN

VOUT

VREF

Delay

Circuit

VSS

 2002-2012 Microchip Technology Inc.

DS21429C-page 1

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