MB3888 Datasheet, PDF (5/30 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging Li-ion Battery

MB3888
s BLOCK DIAGRAM
+INC 11
−INC 10
OUTC 12
−INE1 14
+INE1 13
FB1 15
−INE2 7
+INE2 8
FB2 6
DTC 5
OUTD 9
CS 20
Current Amp
+
×20
−
Error Amp1 ^VREF
−
+
+
Error Amp2 ^VREF
−
+
+
PWM Comp.
+++
−
OUT
Drive
19 VCC (O)
18 OUT
17 VH
VH VCC − 6 V
Bias
Voltage
UVLO
VCC
UVLO
VREF
UVLO
VREF
10 µA
SOFT
−2.5 V
−1.5 V
16 VCC
OSC
45 pF
2
RT
REF CTL
bias
5V
4
1
VREF GND
3 CTL
5