LP3470IM5-3.08 National Semiconductor, LP3470IM5-3.08 Datasheet

LP3470IM5-3.08

Manufacturer Part Number

LP3470IM5-3.08

Description

IC,VOLT DETECTOR,FIXED,+3.08V,CMOS,TSOP,5PIN,PLASTIC

Manufacturer

National Semiconductor

Datasheets

1.LP3470IM5-3.08.pdf (8 pages)

2.LP3470IM5-3.08.pdf (8 pages)

3.LP3470IM5-3.08.pdf (7 pages)

Specifications of LP3470IM5-3.08

Rohs Compliant

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Quantity

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LP3470IM5-3.08

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LP3470

Tiny Power On Reset Circuit

General Description

The LP3470 is a micropower CMOS voltage supervisory cir-

cuit designed to monitor power supplies in microprocessor

(µP) and other digital systems. It provides maximum adjust-

ability for power-on-reset (POR) and supervisory functions. It

is available in the following six standard reset threshold volt-

age (V

4.63V. If other voltage options between 2.4V and 5.0V are

desired please contact your National Semiconductor repre-

sentative.

The LP3470 asserts a reset signal whenever the V

voltage falls below a reset threshold. The reset time-out pe-

riod is adjustable using an external capacitor. Reset remains

asserted for an interval (programmed by an external capaci-

tor) after V

The device is available in the tiny SOT23-5 package.

Key Specifications

n Standard Reset Threshold Voltages: 2.63V, 2.93V,

Pin Configuration and Basic Operating Circuit

3.08V, 4.00V, 4.38V, and 4.63V

1% Reset Threshold Accuracy Over Temperature

RTH

) options: 2.63V, 2.93V, 3.08V, 4.00V, 4.38V, and

has risen above the threshold voltage.

See NS Package Number

Pin Configuration

Top View

MA05B

DS100016-2

DS100016

supply

n Custom Reset Threshold Voltages: For other voltages

n Very Low Quiescent Current (16 µA typical)

n Guaranteed Reset valid down to V

Features

n Tiny SOT23-5 Package

n Open Drain Reset Output

n Programmable Reset Timeout Period Using an External

n Immune to Short V

Applications

n Critical µP and µC Power Monitoring

n Intelligent Instruments

n Computers

n Portable/Battery-Powered Equipments

between 2.4V and 5.0V contact your National

Semiconductor representative

Capacitor

Basic Operating Circuit

Transients

=0.5V

www.national.com

DS100016-1

June 1999

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