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廬

SP4412A

Electroluminescent Lamp Driver

s

2.2 V- 3.6 V Battery Operation

s

50 nA Maximum Standby Current

(10 nA typical)

s

High Voltage Output Typical 160 V

PP

s

External Oscillator Required

s

Enable Control Pin

APPLICATIONS

s

Watches

s

Pagers

s

Backlit LCD Displays

DESCRIPTION

The

SP4412A

is a high voltage output DC-AC converter that can operate from a 2.2V-3.6V

power supply. The

SP4412A

is capable of supplying up to 250 V

PP

signals, making it ideal

for driving small electroluminescent lamps. The device features 10 nA (typical) standby

current, for use in low power portable products. An inductor is used to generate the high

voltage, and an external oscillator is needed as a clock source. The

SP4412A

is offered in

an 8-pin narrow SOIC package or an 8-pin

碌SOIC

package. For delivery in die form, please

consult the factory.

HON

No Connect

Osc Input

V

SS

1

2

3

4

SP4412A

8 V

DD

7 EL2

6 EL1

5 COIL

SP4412A Block Diagram

SP4412ADS/12

SP4412ACN Electroluminescent Lamp Driver

漏 Copyright 2000 Sipex Corporation

1

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