SM8145A

NIPPON PRECISION CIRCUITS—1

NIPPON PRECISION CIRCUITS INC.

Dual EL Driver

OVERVIEW

The SM8145A is an Electro Luminescent (EL) driver IC that can drive two EL displays simultaneously.

Each EL display mode ON/OFF function can be separately controlled using two enable (ENA) pins.

The luminance in each display mode can be adjusted, enabling the luminance and consumption current to be

optimized to match the application. The device is supplied in ultra-small leadless QFN-20 packages, making

driver circuit miniaturization possible.

FEATURES

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2 separate EL display drivers

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2-display simultaneous driver operation

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Adjustable luminance and current consumption in

each mode

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3 display modes and a standby mode select control

pins (ENA1, ENA2)

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1.6 to 5.5V supply voltage

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200 Vp-p maximum EL driver voltage

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20-pin QFN ultra-small leadless package

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High voltage CMOS Process

APPLICATIONS

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Mobile phone

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PDA, Handheld PC

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Illumination accessory

ORDERING INFORMATION

PINOUT

(Top view)

PACKAGE DIMENSIONS

(Unit : mm)

Weight : 0.037g

D e vice

P a ck ag e

SM8145AB

20-pin QFN

12 345

15 14 13 12 11

10

9

8

7

6

16

17

18

19

20

ENA2

OCE

OCL3

N.C.

OCL2

OUTCOM

N.C.

OUT1

N.C.

CHV

8145A

0.60 ± 0.10

0.22 ± 0.05

4.00 ± 0.10

15

6

10

11

15

16

20

4.20 ± 0.20

0.50

0.05 M

0.05