HV823
Figure 3:Typical 9.0V Application*
2MΩ
VDD
REL-osc
1
8
7
6
5
4.9KΩ
VA
560µH1
0.1µF2
RSW-osc
Cs
2
3
4
42nF
VB
VDD = VIN
= 9.0V
1N4148
GND
Lx
Equivalent to 12 square inch lamp
HV823
1nF
16v
0.01µF
100V
Typical Performance
Lamp Size
VIN
IIN
VCS
fEL
Brightness
12.0 in2
9.0v
30mA
75v
380Hz
8.5ft-lm
Notes:
1. Murata part # LQH4N561K04 (DC resistance < 14.5Ω)
2. Larger values may be required depending upon supply impedance.
For additional information, see Application Notes AN-H33 and AN-H34.
Typical Performance Curves for Figure 3
VCS vs. VIN
IIN vs. VIN
85
80
75
70
65
40
38
36
34
32
30
4
5
6
7
8
4
5
6
7
8
VIN (V)
VIN (V)
Brightness vs. VIN
IIN vs. VCS (V)
40
38
36
34
32
30
8
7.5
7
6.5
6
5.5
70
75
80
85
90
4
5
6
7
8
V
IN (V)
VCS (V)
6
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