®
SP4423
Electroluminescent Lamp Driver
Low Power Applications
s
2.2V-5.0V Battery Operation
s
50nA Maximum Standby Current
s
High Voltage Output 160 V
PP
typical
s
Internal Oscillator
APPLICATIONS
s
PDAs
s
Cellular Phones
s
Remote Controls
s
Hand Held Computers
DESCRIPTION
The
SP4423
is a high voltage output DC-AC converter that can operate from a 2.2V-6.0V
power supply. The
SP4423
is capable of supplying up to 200 V
PP
signals, making it ideal for
driving electroluminescent lamps. The device features 10nA (typical) standby current, for use
in low power portable products. An inductor is used to generate the high voltage, and an
external capacitor is used to select the oscillator frequency. The
SP4423
is offered in
an 8-pin narrow SOIC and 8-pin
µSOIC
packages. For delivery in die form, please consult
the factory.
HON
V
SS
COIL
EL2
1
2
3
4
SP4423
8
7
6
5
CAP 2
CAP 1
V
DD
EL1
Block Diagram
SP4423DS/14
SP4423Electroluminescent Lamp Driver
© Copyright 2000 Sipex Corporation
1
SIPEX [ SIPEX CORPORATION ]
