MM5481 datasheet(1/6 Pages) NSC

Part #	MM5481

Description	LED Display Driver

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Manufacturer	NSC [National Semiconductor (TI)]

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TLF6139

February 1995

MM5481 LED Display Driver

General Description

The 5481 is a monolithic MOS integrated circuit utilizing N-

channel metal gate low threshold enhancement mode and

ion-implanted depletion mode devices

It utilizes the

MM5450 die packaged in a 20-pin package making it ideal

for a 2 digit display The MM5481 is designed to drive com-

mon anode-separate cathode LED displays A single pin

controls the LED display brightness by setting a reference

current through a variable resistor connected either to VDD

or to a separate supply of 11V maximum

Features

Y

Continuous brightness control

Y

Serial data input

Y

No load signal required

Y

Data enable

Y

Wide power supply operation

Y

TTL compatibility

Y

Alphanumeric capability

Y

2 digit LED driver

Applications

Y

COPS or microprocessor displays

Y

Industrial control indicator

Y

Relay driver

Y

Instrumentation readouts

Block and Connection Diagrams

TLF6139 – 1

FIGURE 1

Dual-In-Line Package

TLF6139 – 2

Top View

FIGURE 2

Order Number MM5481N

See NS Package Number N20A

C1995 National Semiconductor Corporation

RRD-B30M105Printed in U S A

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MM5481 Datasheet(PDF) 1 Page - National Semiconductor (TI)

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