MIC4830 Datasheet, PDF (9/12 Pages) Micrel Semiconductor – Low Noise 180Vp-p EL Driver

Micrel
Application Circuit
MIC4830
Figure 5: Typical Li-Ion Powered MIC4830 Circuit
Size
(inch²)
Capacitance
(nF)
Lamp Frequency
(Hz)
REL (MΩ)
0.4
2
RSW (kΩ)
fSW (kHz)
1
5
RSW (kΩ)
fSW (kHz)
2
10
RSW (kΩ)
fSW (kHz)
3
15
RSW (kΩ)
fSW (kHz)
4
20
RSW (kΩ)
fSW (kHz)
Note: Table 1 applies to circuit shown in Figure 5.
100 200 300 400 500 600
2.82 1.69 1.1 0.837 0.665 0.562
225 232 237 248 257 269
160 155 152 145 140 134
232 250 277 300 346 395
155 144 130 120 104 91
250 290 352 433 521
144 124 102 83 69
272 363 480
132 99 75
353 473
102 76
Table 1: Recommended R_SW & R_EL values for various panel sizes
700
0.471
281
128
473
76
800
0.409
300
120
900
0.369
321
112
September 2007
9
M9999-091307
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