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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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

circuit 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

voltage (V

4.38V, and 4.63V. If other voltage options between 2.4V and

5.0V are desired please contact your National Semiconduc-

tor representative.

The LP3470 asserts a reset signal whenever the V

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

period is adjustable using an external capacitor. Reset re-

mains asserted for an interval (programmed by an external

capacitor) 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, 3.65V, 4.00V, 4.38V, and 4.63V

1% Reset Threshold Accuracy Over Temperature

RTH

) options: 2.63V, 2.93V, 3.08V, 3.65V, 4.00V,

See NS Package Number

Pin Configuration

has risen above the threshold voltage.

Top View

MF05A

10001602

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

September 2000

www.national.com

10001601

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