MB39A114 Datasheet, PDF (29/54 Pages) Fuji Electric – DC/DC Converter IC for Charging Li-ion Battery

MB39A114
(Continued)
PWM comparator block
VCC
Output block
VCC
FB12
FB3
GND
CT
VH
GND
20 OUT
AC adapter detection block
VCC
−INC2
VREF
(5.0 V)
GND
Constant voltage control state detection block
VCC
Overvoltage detection block
VCC
VREF
(5.0 V)
VREF
5 CVM ^{(5.0 V)}
FB3
FB3
GND
GND
Bias voltage block
VCC
GND
19 VH
Output voltage switching function block
SEL 11
GND
85 kΩ
97 kΩ
18 OVP
29