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零件编号 | 4423CN | ||
描述 | SP4423CN | ||
制造商 | Sipex Corporation | ||
LOGO | |||
1 Page
® SP4423
Electroluminescent Lamp Driver
Low Power Applications
s 2.2V-5.0V Battery Operation
s 50nA Maximum Standby Current
s High Voltage Output 160 VPP typical
s Internal Oscillator
APPLICATIONS
s PDAs
s Cellular Phones
s Remote Controls
www.DataSheest4UH.caonmd 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 VPP 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 1
VSS 2
COIL 3
EL2 4
SP4423
8 CAP 2
7 CAP 1
6 VDD
5 EL1
Block Diagram
SP4423DS/14
SP4423Electroluminescent Lamp Driver
1
© Copyright 2000 Sipex Corporation
900
800
700
600
500
400
300
200 X
100
0
2.0
Lamp Frequency vs. VDD
XXX
2.5 3.0 3.5 4.0 4.5 5.0 5.5
Volts
Oscillator Cap
COSC = 50
COSC = 75
COSC = 100
X COSC = 180
COSC = 220
X COSC = 360
6.0
Lamp = 1sq. in., Coil = 9mH/35 ohms
40
35
30
25
20
15
w w w . D a t a S h e e t 4 U . c10 oX m
5
ITOTAL vs. VDD
X
X
X
Oscilltor Cap
COSC = 50
COSC = 75
COSC = 100
X X COSC = 180
COSC = 220
COSC = 360
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
VDD (Volts)
Lamp = 1sq. in., Coil = 9mH/35 ohms
160 VPEAK vs. VDD
X XX
140
120 X
100
80
60 X
40
20
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
VDD (Volts)
Lamp = 1sq. in., Coil = 9mH/35 ohms
Oscillator Cap
COSC = 50
COSC = 75
COSC = 100
X COSC = 180
COSC = 220
COSC = 360
25 Light vs. VDD
Oscillator Cap
20
COSC = 50
X COSC = 75
15 X COSC = 100
X X COSC = 180
10 COSC = 220
X COSC = 360
5
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
VDD (Volts)
Lamp = 1sq. in., Coil = 9mH/35 ohms
SP4423DS/14
SP4423 Electroluminescent Lamp Driver
8
© Copyright 2000 Sipex Corporation
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页数 | 13 页 | ||
下载 | [ 4423CN.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
4423CN | SP4423CN | Sipex Corporation |
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