BD9285F Datasheet, PDF (14/39 Pages) Rohm – Boost 1channel white LED driver For large LCDs

BD9285F
・Only analog dimming
VCC
VIN
Css
Adim (DC)
VCC
TC54
STB
RT
SS
FAILB
PWM1
PWM2
ADIM_P
ADIM
UVLO
OVP
GATE
CS
GND
DIMOUT
ISENSE
FB
Figure 19. the circuit example of analog dimming only
・Application example when use numerous IC
The application circuit of analog dimming by external duty signal.
VIN
VCC
STB
FAILB
PWM1
PWM2
ADIM_P
VCC
UVLO
OVP
TC54
BD9285F
STB
RT
GATE
SS
CS
FAILB
PWM1
PWM2
ADIM_P
ADIM
DIMOUT
ISENSE
FB
GND
Datasheet
VCC
UVLO
OVP
TC54
BD9285F
STB
STB
RT
GATE
SS
CS
FAILB
PWM1
PWM1
PWM2
PWM2
ADIM_P
ADIM
DIMOUT
ISENSE
FB
GND
Figure 20. the circuit example of when plural IC is used.
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TSZ22111・15・001
14/36
TSZ02201-0F1F0C100030-1-2
11.Jul.2012 Rev.001