Micrel
MIC4830
Application Circuit
Figure 5: Typical Li-Ion Powered MIC4830 Circuit
Size
2
(inch )
0.4
1
2
3
4
Capacitance
(nF)
2
5
10
15
20
Lamp Frequency
(Hz)
R
EL
(MΩ
)
R
SW
(kΩ
)
f
SW
(kHz)
R
SW
(kΩ
)
f
SW
(kHz)
R
SW
(kΩ
)
f
SW
(kHz)
R
SW
(kΩ
)
f
SW
(kHz)
R
SW
(kΩ
)
f
SW
(kHz)
100
2.82
225
160
232
155
250
144
272
132
353
102
200
1.69
232
155
250
144
290
124
363
99
473
76
300
1.1
237
152
277
130
352
102
480
75
400
0.837
248
145
300
120
433
83
500
0.665
257
140
346
104
521
69
600
0.562
269
134
395
91
700
0.471
281
128
473
76
800
0.409
300
120
900
0.369
321
112
Note: Table 1 applies to circuit shown in Figure 5.
Table 1: Recommended R
SW
& R
EL
values for various panel sizes
September 2007
9
M9999-091307
(408) 955-1690
MICREL [ MICREL SEMICONDUCTOR ]
