SP4403EU Sipex Corporation, SP4403EU Datasheet
SP4403EU
Manufacturer Part Number
SP4403EU
Description
Manufacturer
Sipex Corporation
Specifications of SP4403EU
Date_code
03
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SP4403EU
Manufacturer:
SIPEX
Quantity:
20 000
APPLICATIONS
DESCRIPTION
The SP4403 is a high voltage output DC-AC inverter specifically designed to drive electrolu-
minescent lamps to backlight liquid crystal displays, keypads, and backlit readouts used in
battery operated portable equipment. The SP4403 will operate from a +2.2V to +5.0V battery
source. The device features a low power shutdown mode which draws less than 100nA
(typical), ideal for low power portable products. One external inductor is required to generate
the high voltage AC output. One external resistor is used to select the internal oscillator
frequency. The SP4403 is ideal for portable applications such as PDA's, pagers, cellular
phones, and other portable applications using LCDs in dim or low light environments. The
SP4403 is offered in 8 pin MSOP packages.
Rev. 7/16/01
PDA's
Pagers
Cellular Phones
LCD Modules
Handheld GPS Units
Uses Small 470µH, Sub 2mm Height Coil
High Efficiency Design
+2.2V to +5.0V Battery Operation
DC-to-AC Converter Produces up to
Single Resistor Controlled Internal Oscillator
Low Current Standby Mode Draws Less
220V
than 1µA
ELEN
COIL
EL1
V
SS
Low Voltage Electroluminscent Lamp Driver
P-P
for EL Display Panels
1
2
3
4
SP4403
®
8
7
6
5
SP4403 Electroluminescent Lamp Driver
R
C
V
EL2
OSC
INT
DD
1
1.0µF
C1*
V
BATT
450kΩ
ELEN
R
OSC
10nF
C2
R
V
OSC
DD
EL Lamp
1
6
8
2
V
SS
SP4403
EL1
© Copyright 2001 Sipex Corporation
4
5
EL2
3
7
SP4403
COIL
C
INT
*Optional Device
470µH/12Ω
1N4148
680pF
C
D1*
INT
L1
*
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