ADM8843
90
85
80
75
V F = 3.8V
V F = 4.0V
V F = 4.3V
CTRL1/2
Δ : 44.0ms C2 FALL
@: –44.4ms 200 μ s
LOW SIGNAL
AMPLITUDE
70
1
65
60
V OUT
55
V F = 3.6V
50
V F = 3.2V
45
2
40
2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2
V CC (V)
CH1 2.00V
CH2 2.00mV
M 10.0ms CH2
4.36mV
Figure 15. Power Efficiency vs. Supply Voltage over Li-Ion Range,
Four LEDs @ 15 mA/LED
Rev. C | Page 8 of 16
Figure 16. TPC Delay
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