ADP8140

Data Sheet

Rev. B | Page 10 of 23

Figure 16. Typical Sink Current vs. DIM or VT Voltage (MODE = 0, MIN = 0 V)

Figure 17. Typical Average Sink Current vs. VT Duty Cycle

(MIN = 3 V, VT Frequency = 120 Hz)

Figure 18. Typical Sink Current Waveforms with PWM on VT Pin (MIN = 3 V)

Figure 19. Start-Up Sequence (See Figure 1 Setup)

DIM OR VT VOLTAGE (V)

0

20

40

60

80

100

0

0.5

1.0

1.5

2.0

2.5

3.0

–40°C

+25°C

+85°C

+125°C

VT DUTY CYCLE (%)

0

10

20

30

40

50

60

70

80

90

100

0

1020

30405060708090

100

–40°C

+25°C

+85°C

+125°C

1

4

CH1 1V

CH4 100mA

1.0ms

VT

2

3

1

4

CH1 2V

CH2 2V

CH3 1V

CH4 200mA

2.00ms

FAULT

EN

COMP