MB39A114 Datasheet, PDF (28/54 Pages) Fuji Electric – DC/DC Converter IC for Charging Li-ion Battery

MB39A114
s I/O EQUIVALENT CIRCUIT
Reference voltage block
VCC 21
Control block
ESD protection
element
GND 23
+
−
CTL 14
6 VREF
33.1
37.8
kΩ
kΩ
12.35
kΩ
ESD protection
element
51
kΩ
GND
Soft start block
VREF
(5.0 V)
Triangular wave oscillator
Error amplifier block (Error Amp1)
block
VCC
VCC
VREF
(5.0 V)
22 CS
1.3 V +
−
−INE1 8
17 RT
CS
GND
GND
GND
9 +INE1
7 FB12
Error amplifier block (Error Amp2)
VCC
VREF
(5.0 V)
−INE2 4
CS
FB12
Error amplifier block (Error Amp3)
VCC
VREF
(5.0 V)
−INE3 16
CS
4.2 V
15 FB3
GND
3 +INE2
GND
Current detection amplifier block (Current Amp1)
VCC
Current detection amplifier block (Current Amp2)
VCC
+INC1 13
GND
28
12 −INC1
10 OUTC1
+INC2 24
GND
2 OUTC2
1 −INC1
(Continued)