CPC6826 Datasheet, PDF (7/12 Pages) Clare, Inc. – High Voltage EL Lamp Driver

3. Typical Application B
Figure 3. Typical Application B Circuit Diagram
V_IN = V_DD = 3V
1
CPC6826
2
Switch
Osc
Enable Signal
ON = V_DD
OFF = 0
Disable
+
Vsen
-
Vref
3
4
VV
IN = DD
+
+
_
Q
Q
Output
Osc
Q
Q
CPC6826
5
6
EL Lamp
8
3.0 in²
2
7
1N4148
1
L_X
1 _{LX = Murata LQH43MN561K03}
2 _{1N4148 or equivalent}
Operating Voltage: V_DD
EL Lamp Size: Up to
= 1.8V
3.0 in²
to
4.0V
Light Intensity: 19 to 74 Lux
3.1 Typical Application B Performance
Device
Lamp Size
V_DD
I_DD
V_CS
CPC6826
3.0 in²
3.0V
27mA
84V
Figure 4. Typical EL Output Waveform 180Hz
f_SW
62KHz
f_EL
180Hz
Light Intensity
T_A
58 Lux
-40ºC to +85ºC
CH1: V_A=50V/div
CH1: V_B=50V/div
M1: V_A-V_B=40V/div
M1=170V_P-P
CH1=84V
CH2=84V
R00C
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