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| SP4426 Datasheet, PDF (1/11 Pages) Sipex Corporation – Electroluminescent Lamp Driver with High Output Drivers | |||
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SP4426
Electroluminescent Lamp Driver
with High Output Drivers
s 2.2V-6.0V Battery Operation
s DC to AC Inverter for EL Backlit
Display Panels
s Externally Adjustable Internal Oscillator
s Low Current Standby Mode
APPLICATIONS
s HPC's s PDA's s Pen Tablets
s Backlit LCD Displays
DESCRIPTIONâ¦
The SP4426 is a high voltage output DC-AC converter that can operate from a 2.2V-6.0V
power supply. The SP4426 is capable of supplying up to 300 Vpp signals, making it ideal for
driving electroluminescent lamps. The device features 100 nA (typ) standby current, for use
in low power portable products. One external inductor is required to generate the high voltage
charge, and one external capacitor is used to select the oscillator and Lamp frequencies. The
SP4426 is offered in a 14 pin narrow SOIC. For delivery in die form, please consult the factory.
D1
6
HON
1
CAP1
14
CAP2
12
Block Diagram
SP4426DS/01
11
VDD
EN
8 Bit Counter
CAP1
CAP2
VSS
3
COIL
5
H
Bridge
EL1
7
EL2
8
SP4426 Electroluminescent Lamp Driver
1
© Copyright 1997 Sipex Corporation
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