SP4422A Datasheet, PDF (1/13 Pages) Sipex Corporation – Electroluminescent Lamp Driver

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SP4422A
Electroluminescent Lamp Driver
s 2.2V-5.0V Battery Operation
s 50nA Typical Standby Current
s High Voltage Output 160 V_PP typical
s Internal Oscillator
APPLICATIONS
s PDAs
s Cellular Phones
s Remote Controls
s Handheld Computers
DESCRIPTION
The SP4422A is a high voltage output DC-AC converter that can operate from a 2.2V-5.0V
power supply. The SP4422A is capable of supplying up to 220 V signals, making it ideal
PP
for driving electroluminescent lamps. The device features 50 nA (typical) standby current, for
use in low power portable products. One external inductor is required to generate the high
voltage, and one external capacitor is used to select the oscillator frequency. The SP4422A
is offered in an 8-pin narrow and 8-pin micro SOIC packages. For delivery in die form, please
consult the factory.
HON ¹
V_SS 2
COIL 3
EL2 ⁴
SP4422
8 CAP 2
7 CAP 1
6 V_DD
5 EL1
SP4422A Block Diagram
SP4422ADS/15
SP4422A Electroluminescent Lamp Driver
1
© Copyright 2000 Sipex Corporation