ADM8843EB-EVALZ 查看數據表（PDF） - Analog Devices

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ADM8843EB-EVALZ

Four White LED Backlight Driver

Analog Devices 

ADM8843

90

85

VF = 3.8V

80

VF = 4.0V

75

VF = 4.3V

70

65

60

55

VF = 3.6V

50

VF = 3.2V

45

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

VCC (V)

Figure 15. Power Efficiency vs. Supply Voltage over Li-Ion Range,

Four LEDs @ 15 mA/LED

CTRL1/2

1

VOUT

Data Sheet

∆: 44.0ms C2 FALL

@: –44.4ms 200µs

LOW SIGNAL

AMPLITUDE

2

CH1 2.00V

CH2 2.00mV M 10.0ms CH2 4.36mV

Figure 16. TPC Delay

Rev. E | Page 8 of 16

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