Analog Devices DC2630A, Руководство пользователя

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4
DEMO MANUAL DC2630A
Rev. 0
Figure 2. DC2630A Input Voltage vs Efficiency – 4× Channels Powering 16 White LEDs Per Channel at 125mA
Figure 3. DC2630A PWM Dimming Using I
2
C Settings for 1250:1 and 500:1 Dimming Ratios
TEST RESULTS
V
IN
(V)
6 8 10 12 14 16 18 20
60
65
70
75
80
85
90
95
100
EFFICIENCY (%)
dc2630a F02
1250:1 500:1
244Hz PWM FREQUENCY
1µs/DIV
I
LED
50mA/DIV
dc2630a F03