ADD5207 データシートの表示（PDF） - Analog Devices
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ADD5207 Datasheet PDF : 16 Pages
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ADD5207
VOUT
0V
100mV/DIV
AC
VSW
20V/DIV
0V
IL
500mA/DIV
0A
VIN = 6V, fSW = 800kHz
BRIGHTNESS = 100%
LEDs = 10 SERIES × 4 PARALLEL
1µs/DIV
Figure 10. Switching Waveforms (VIN = 6 V)
VOUT
0V
100mV/DIV
AC
VSW
20V/DIV
0V
IL
0A
500mA/DIV
VIN = 21V, fSW = 800kHz
BRIGHTNESS = 100%
LEDs = 10 SERIES × 4 PARALLEL
1µs/DIV
Figure 11. Switching Waveforms (VIN = 21 V)
Data Sheet
PWM
0V
2V/DIV
FB1
5V/DIV
0V
0A
VIN = 12V
BRIGHTNESS = 1.5%
LEDs = 10 SERIES × 4 PARALLEL
IFB1
10mA/DIV
100µs/DIV
Figure 12. LED Current Waveforms (Brightness = 1.5%)
FB1
7V/DIV
0V
FB2
7V/DIV
0V
FB3
7V/DIV
0V
0V
VIN = 12V
BRIGHTNESS = 25%
LEDs = 10 SERIES × 4 PARALLEL
FB4
7V/DIV
50µs/DIV
Figure 13. LED FBx Waveforms (Brightness = 25%)
Rev. A | Page 10 of 16
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