MIC4827 Datasheet, PDF (9/13 Pages) Micrel Semiconductor – Low Input Voltage, 180VPP Output Voltage, EL Driver

MIC4827
V_IN
2.4V to 5.5V
C2
10µF/6.3V
Murata
GRM42-6X5R106K6.3
R2
3.32M
L1
220µH
Murata
LQH4C221K04
D1
Diodes
BAS20W
MIC4827
1 _VDD
R1 ₂
RSW
332k
3
REL
4
GND
SW ⁵
6
CS
8
VA
7
VB
C_OUT
0.033µF/100V
GRM42-6X7R333K100
EL LAMP
LSI
X533-13
V_IN
3.3V
I_IN
18mA
V_A–V_B
180V_PP
F_EL
104Hz
Lamp Size
2in²
Micrel
TIME (2ms/div)
Figure 6. Typical EL Driver for 2in² Lamp with C_S = 0.033µF
September 2001
9
MIC4827