ADM8845
908580POWER EFFICIENCY (%)
757065605550
VCC
VOUT
04867-0-016
45
40
VCC(V)
04867-0-01904867-0-020
W
CH2
W
M 400ns
Figure 15. 1× Mode Operating Waveforms
908580POWER EFFICIENCY (%)
Figure 18. Power Efficiency vs. Supply Voltage over Li-Ion Range,
Six LEDS @ 20 mA/LED
90
POWER EFFICIENCY (%)
858075706560555045
04867-0-017
75706560555045
40
VCC(V)
40
VCC(V)
Figure 16. Power Efficiency vs. Supply Voltage over Li-Ion Range,
Six LEDS @ 15 mA/LED
908580POWER EFFICIENCY (%)
Figure 19. Power Efficiency vs. Supply Voltage over Li-Ion Range
Four LEDS @ 20 mA/LED
75706560555045
V40
VCC(V)
04867-0-018
2.00VCH2 2.00VM10.0ms04867-0
-021
Figure 20. TPC Delay
Figure 17. Power Efficiency vs. Supply Voltage over Li-Ion Range,
Four LEDS @ 15 mA/LED
Rev. C | Page 8 of 20