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PDF SP4412 Data sheet ( Hoja de datos )
| Número de pieza | SP4412 | |
| Descripción | Electroluminescent Lamp Driver | |
| Fabricantes | Sipex | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SP4412 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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® SP4412A
Electroluminescent Lamp Driver
s 2.2 V- 3.6 V Battery Operation
s 50 nA Maximum Standby Current
(10 nA typical)
s High Voltage Output Typical 160 V
PP
s External Oscillator Required
s Enable Control Pin
APPLICATIONS
s Watches
s Pagers
s Backlit LCD Displays
DESCRIPTION
The SP4412A is a high voltage output DC-AC converter that can operate from a 2.2V-3.6V
power supply. The SP4412A is capable of supplying up to 250 VPP signals, making it ideal
for driving small electroluminescent lamps. The device features 10 nA (typical) standby
current, for use in low power portable products. An inductor is used to generate the high
voltage, and an external oscillator is needed as a clock source. The SP4412A is offered in
an 8-pin narrow SOIC package or an 8-pin µSOIC package. For delivery in die form, please
consult the factory.
HON 1
No Connect 2
Osc Input 3
VSS 4
SP4412A
8 VDD
7 EL2
6 EL1
5 COIL
SP4412A Block Diagram
SP4412ADS/12
SP4412ACN Electroluminescent Lamp Driver
1
© Copyright 2000 Sipex Corporation
1 page  
Electroluminescent backlighting is ideal when
used with LCD displays, keypads, or other
backlit readouts. Its main use is to illuminate
displays in dim to dark conditions for momentary
periods of time. EL lamps typically consume less
current than LEDs or incandescent bulbs making
them ideal for battery powered products. Also,
EL lamps are able to evenly light an area without
creating "hot spots" in the display.
The amount of light emitted is a function of the
voltage applied to the lamp, the frequency at
which it is applied, the lamp material used and
its size, and lastly, the inductor used. There
are many variables which can be optimized
for specific applications. Sipex supplies
characterization charts to aid the designer
in selecting the optimum circuit configuration
(see page 6).
SP4412ADS/12
SP4412ACN Electroluminescent Lamp Driver
5
© Copyright 2000 Sipex Corporation
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet SP4412.PDF ] | |
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