MIC4827_05 Datasheet, PDF (11/13 Pages) Micrel Semiconductor – Low Input Voltage, 180VPP Output Voltage, EL Driver

MIC4827
V_IN
1.5V
L1
220µH
Murata
LQH4C221K04
D1
Diodes
BAS20W
C2
10µF/6.3V
Murata
GRM42-6X5R106K6.3
MIC4827
1 _VDD
SW ⁵
V_DD
1.8V to 5.5V
C1
0.01µF/50V
Murata
GRM42-6X5R106K6.3
R1 ₂
RSW
562k
3
R2
3.32M
REL
4
GND
6
CS
8
VA
7
VB
C_OUT
0.01µF/100V
GRM42-2X7R104K100
EL LAMP
V_IN
1.5V
I_IN
26mA
V_DD
3.0V
I_DD
32µA
V_A–V_B
180V_PP
F_EL
104Hz
Lamp Size
1.6in²
Micrel
TIME (2ms/div)
Figure 8. Typical Split Power Supplies Applications
January 2005
11
MIC4827