ZSP4425 Electroluminescent Lamp Driver
Zywyn
Features
• Low voltage, single battery operation
(1.1VDC < V
BATTERY
< 1.7VDC), or
(2.2VDC < V
BATTERY
< 4.5VDC)
• DC to AC inverter for EL backlit display panels
• Externally adjustable internal oscillator
• Low current standby mode
ZSP4425
Electroluminescent Lamp Driver
For 1.5V or 2.2V to 4.5V Applications
General Description
The ZSP4425 is a high voltage output DC-AC converter that can
operate from a single +1.5VDC, +3.0VDC, or +2.2VDC to
+4.5VDC power supply. The ZSP4425 is designed with our
proprietary high voltage BiCMOS technology and capable of
supplying up to 220V
PP
signals, making it ideal for driving
electroluminescent lamps. The device features 1μA (typical)
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 ZSP4425 is offered in both 8-pin narrow
SOIC and 8-pin MSOP package. For delivery in die form, please
consult the factory.
Applications
•
•
•
•
•
Pagers
Digital watches
MP3 players
Cell Phones
Backlit LCD displays
Ordering Information
Part Number
ZSP4425CN
ZSP4425LCN
Temperature Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
0°C to +70°C
0°C to +70°C
n/a
n/a
Package Type
8-Pin nSOIC
8-Pin nSOIC Green
8-Pin MSOP
8-Pin MSOP Green
Die in Wafflepack
Die in Wafer Form
nSOIC Eval. Board
MSOP Eval. Board
Pin Configuration
ZSP4425CU
ZSP4425LCU
ZSP4425CX
ZSP4425CW
ZSP4425NEB
ZSP4425UEB
C
OSC
1
V
SS
2
COIL 3
D1 4
8
HON
V
DD
EL1
EL2
Zywyn
ZSP4425
7
6
5
Please contact the factory for pricing, availabiliy on Tape-and-Reels,
and Green Package
options.
8-Pin nSOIC/MSOP
Please contact the factory for EL driver design support and availability
of custom-made evaluation demo boards.
See our web site for Application Note
AN007
regarding requirements
for custom-made evaluation demo boards.
Zywyn Corporation • Tel (408) 733-3225 • Fax (408) 733-3206 • Email sales@zywyn.com • www.zywyn.com
specifications subject to change without notice
October 2005
rev. 04
ASIX [ ASIX ELECTRONICS CORPORATION ]
