BD9489F Datasheet, PDF (15/39 Pages) Rohm – DCDC converter with current mode

BD9489F
3.1 Application Circuit Example
Introduce an example application using the BD9489F.
3.1.1 Basic Application Example
VCC
VIN
Datasheet
Vout
VCC
REG58
STB
RT
SS
CP
PWM
ADIM
UVLO _OVP
GATE
CS
DIMOUT
ISENSE
FB
Rs
GND
Figure 21. Basic application example
・3.1.2 Analog Dimming or PWM Dimming Examples
VCC
VIN
Vout
VCC
VIN
Vout
REG58
VCC
REG58
STB
RT
SS
CP
PWM
ADIM
UVLO _OVP
GATE
CS
DIMOUT OPEN
ISENSE
FB
Rs
GND
Figure 22. Example circuit for analog dimming
REG58
VCC
REG58
STB
RT
SS
CP
PWM
ADIM
UVLO _OVP
GATE
CS
DIMOUT
ISENSE
FB
Rs
GND
Figure 23. Example circuit for PWM dimming
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TSZ02201-0F1F0C100250-1-2
29.Oct 2014 Rev.002