PM6600 Datasheet, PDF (14/43 Pages) ON Semiconductor – 6-rows 30 mA LEDs driver with boost regulator for LCD panels backlight

Typical operating characteristics
PM6600
Figure 13. Efficiency
vs Vin @ DIM duty cycles = 10 %
100
90
80
70
60
50
40
30
20
10
0
6
12
Vin [V]
fDIM = 200Hz
fDIM = 500Hz
fDIM = 1kHz
fDIM = 5kHz
fDIM = 10kHz
fDIM = 20kHz
18
24
Figure 14. Efficiency
vs Vin @ DIM duty cycles = 50 %
100
90
80
70
60
50
40
30
20
10
0
6
12
Vin [V]
fDIM = 200Hz
fDIM = 500Hz
fDIM = 1kHz
fDIM = 5kHz
fDIM = 10kHz
fDIM = 20kHz
18
24
Figure 15. Efficiency
Figure 16. Efficiency
vs Vin @ DIM duty cycles = 75 %
vs Vin @ DIM duty cycles = 100 %
96
94
92
90
88
86
84
82
6
12
Vin [V]
fDIM = 200Hz
fDIM = 500Hz
fDIM = 1kHz
fDIM = 5kHz
fDIM = 10kHz
fDIM = 20kHz
18
24
95
94
93
92
91
90
89
88
87
6
12
Vin [V]
fDIM = 200Hz
fDIM = 500Hz
fDIM = 1kHz
fDIM = 5kHz
fDIM = 10kHz
fDIM = 20kHz
18
24
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