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BD6142AMUV
2. Analog Dimming and monitoring FAULT terminal
LED current: 20mA (ISET = 36k ? )
LED: 10 LEDs in series, 8 strings in parallel
Datasheet
7V to 27V
3V to 5V
10μF
10μH
30k ?
monitor
VOUT
10 serial x 8 parallel (80pcs)
2.2μF
2.2μF/50V
LX
LX
FAULT
VIN
VDC
2.1V to VIN
2.2M ?
RESET
ENABLE
OVP
68k ?
PWM
1k ?
22nF
COMP
BD6142AMUV
CH1
CH2
CH3
CH4
CH5
CH6
CH7
PGND
PGND
GND
TEST FSET ABC
ISET
CH8
20mA
56k ?
36k ?
GND
PGND
1nF
Max 0.9V
D/A
Figure 42. Application example of Analog dimming
3. Application example of CH terminal connected
LED current: 20mA (ISET = 36k ? )
LED: 3LEDs ×12 strings
5V
3V to 5V
10μF
10μH
30k ?
monitor
VOUT
3 serial x 12parallel (36pcs)
2.2μF
2.2μF/50V
LX
LX
FAULT
VIN
VDC
2.1V to VIN
2.2M ?
PWM
RESET
ENABLE
PWM
OVP
160k ?
1k ?
22nF
COMP
BD6142AMUV
CH1
CH2
CH3
CH4
CH5
CH6
CH7
PGND
PGND
GND
TEST FSET ABC
ISET
CH8
30mA
56k ?
24k ?
GND
PGND
1nF
Figure 43. Application example of CH terminal connected
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
26/30
TSZ02201-0G3G0C400340-1-2
03.Dec.2012 Rev.001
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