CPC6826 Datasheet, PDF (5/12 Pages) Clare, Inc. – High Voltage EL Lamp Driver

2. Typical Application A
Figure 1. Typical Application A Circuit Diagram
V_DD = 3V
V_DD
1
CPC6826
2
Switch
Osc
Enable Signal
ON = V
DD
OFF = 0
Disable
+
Vsen
-
Vref
3
4
Q
Q
Output
Osc
Q
Q
+
+
V_IN
_
CPC6826
5
6
8
EL Lamp
1.6 in²
7
2
1N4148
1
L_X
1 _{LX = Murata LQH43MN221K03}
2 _{1N4148 or equivalent}
2.1 Typical Application A Performance
Device
Lamp Size
V_IN
I_IN
V_CS
CPC6826
1.6 in²
1.5V 26.65mA 56V
Figure 2. Typical EL Output Waveform 348Hz
Operating Voltage: V_DD
EL Lamp Size: Up
= 1.8V to
to 3.0 in²
4.0V
Light Intensity: 39 to 135 Lux
f_SW
79.6KHz
f_EL
348Hz
Brightness
Lux 39
T_A
-40ºC to +85ºC
CH1: V_A=50V/div
CH1: V_B=50V/div
M1: V_A-V_B=40V/div
M1=110V_P-P
CH1=56V
CH2=56V
R00C
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5