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參數(shù)資料
| 型號： | SP4423CU |
| 英文描述： | Electroluminescent Lamp Driver Low Power Applications |
| 中文描述： | 電致發(fā)光燈驅(qū)動器的低功耗應(yīng)用 |
| 文件頁數(shù)： | 5/13頁 |
| 文件大?。?/td> | 180K |
| 代理商： | SP4423CU |
SP4423DS/14
SP4423Electroluminescent Lamp Driver
5
Copyright 2000 Sipex Corporation
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 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.
Typical SP4423 Application Circuit
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. 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
).
μ
F Low ESR
0.1
EL Lamp
NOTE:
DD
Keep high voltage traces
Cap2
Cap1
V
DD
EL1
HON
V
SS
Coil
EL2
HON=V
=ON
HON=0V=OFF
SP4423
V
IN
=3V
9
NOTE:
Keep coil as close to the
+
–
C
OSC
=100pF
Typical SP4423 Test Circuit
μ
F Low ESR
0.1
NOTE:
Keep high voltage traces
DD
and clock lines
Cap2
Cap1
V
DD
EL1
HON
V
SS
Coil
EL2
HON=V
=ON
HON=0V=OFF
SP4423
V
IN
=3V
2
NOTE:
+
–
C
OSC
=150pF
100
6nF
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。