SM8143A

NIPPON PRECISION CIRCUITS—1

NIPPON PRECISION CIRCUITS INC.

EL Sheet Driver

OVERVIEW

The SM8143A is a transformer-less electroluminescent (EL) driver IC, capable of driving displays up to 80

circuit configuration to reduce loss.

The EL drive frequency and coil drive frequency can be controlled independently, making the driver circuit

optimizable to match application requirements. A microcontroller interface pin (ENA) is provided, which can

be used to control the EL driver ON/OFF function. The device is available in 16-pin VSOP packages.

FEATURES

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Dedicated EL driver

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1.6 to 5.5 V supply voltage

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150mA maximum operating current

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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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16-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

SM8143AV

16-pin VSOP

1

9

16

8

N.C.

CHV

N.C.

LDR

N.C.

VSS

N.C.

N.C.

OUT1

N.C.

OUT2

N.C.

VDD

ENA

OCL

OCE

5.1 0.2

0.22

+ 0.10

- 0.05

010

0.5 0.2

0.275TYP

0.65

0.10

0.15

+ 0.1

- 0.05