參數(shù)資料
型號: SP4405NEB
英文描述: Low Voltage Electroluminescent Lamp Driver with Regulated Output Voltage
中文描述: 低電壓電致發(fā)光燈驅(qū)動器,輸出電壓
文件頁數(shù): 1/20頁
文件大?。?/td> 158K
代理商: SP4405NEB
SP4405DS/18
SP4405 Low Voltage Electroluminescent Lamp Driver
1
Copyright 2000 Sipex Corporation
I
+2.2V to +4.5V Battery Operation
I
DC-to-AC Converter Produces
160V
PP
typical for EL Display Panels
I
Single Resistor Controlled Internal
Oscillator
I
Low Current Standby Mode
I
Internal Feedback Loop Maintains
a Constant Regulated EL Lamp
Voltage Output
APPLICATIONS
I
Pagers
I
Cellular Phones
I
PDAs
Low Voltage Electroluminescent Lamp Driver
with Regulated Output Voltage
SP4405
DESCRIPTION
The
SP4405
is a high voltage output DC-AC inverter specifically designed to drive
electroluminescent lamps to backlight liquid crystal displays, keypads, and backlit readouts
used in battery operated portable equipment. The
SP4405
will operate from a +2.2V to +4.5V
battery source. The device features an internal feedback loop that regulates the lamp voltage
output to 160V
(typical) with varying supply voltages to maintain constant EL lamp brightness
over the life of the battery. The device also has a low power shutdown mode which draws less
than 50nA (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 set the internal
oscillator frequency. The
SP4405
is ideal for portable applications such as pagers, cellular
phones, PDAs, and other portable applications using LCDs in dim or low light environments.
The
SP4405
is offered in 8-pin SOIC and 8-pin
μ
SOIC packages.
R
OSC
V
SS
COIL
C
INT
SP4405
V
BATTERY
C1
0.1
μ
F
R
OSC
450k
L1
470
μ
H
3
6
8
1
7
2
ELEN
1*D1
C
INT
0.1
μ
F
*optional device
V
DD
EL2
EL1
EL Lamp
5
4
C2
1nF
ELEN
V
DD
EL2
R
OSC
V
SS
COIL
EL1
C
INT
SP4405
8
7
4
3
2
1
5
6
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SP4405UEB 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Voltage Electroluminescent Lamp Driver with Regulated Output Voltage
SP4412 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Electroluminescent Lamp Driver
SP4412A 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Electroluminescent Lamp Driver
SP4412ACN 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Electroluminescent Lamp Driver
SP4412ACU 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Electroluminescent Lamp Driver