SM8144B

NIPPON PRECISION CIRCUITS—1

NIPPON PRECISION CIRCUITS INC.

EL Sheet Driver

OVERVIEW

The SM8144B is a transformer-less electroluminescent (EL) driver IC, capable of driving displays up to 80

circuit configuration to reduce loss, all in a compact package.

A microcontroller interface pin (ENA) is provided, which can be used to control the EL driver ON/OFF func-

tion. The device is available in 8-pin VSOP packages.

FEATURES

s

Dedicated EL driver

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1.6 to 5.5 V supply voltage

s

100mA maximum operating current

s

3.5

Ω typical output resistance

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200 Vp-p maximum EL driver voltage*

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31 to 1500 Hz EL drive frequency range*

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High voltage CMOS Process

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8-pin VSOP plastic package

*: Adjustable with external resistance.

APPLICATIONS

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Hand held PC, Palm size PC

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Mobile IT equipment

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White EL

ORDERING INFORMATION

PINOUT

(Top view)

PACKAGE DIMENSIONS

(Unit : mm)

D e vice

P a ck ag e

SM8144BV

8-pin VSOP

1

CHV

2

LDR

3

VSS

4

OSC

5

ENA

6

VDD

7

OUT2

8

OUT1

8144BV

0.575 typ

3.1

± 0.3

0.22

± 0.1

0.65

0.10

0 to 10

0.15

+0.1

−0.05