MB3875_03 Datasheet, PDF (2/26 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging

MB3875/3877
(Continued)
• High precision reference voltage source: 4.2 V ± 0.8 %
• Support for frequency setting using an external resistor
(Frequency setting capacitor integrated) :100 kHz to 500 kHz
• On-chip current detector amplifier with wide in-phase input voltage range : 0 V to VCC
• On-chip standby current function: 0 µA (Typ)
• On-chip soft-start function
• Internal totem-pole output stage supporting P-channel MOS FETs devices
s PIN ASSIGNMENT
−INC2 : 1
IN3 : 2
FB2 : 3
OUTC2 : 4
VREF : 5
−INE2 : 6
+INE2 : 7
+INE1 : 8
FB1 : 9
OUTC1 : 10
−INE1 : 11
−INC1 : 12
(TOP VIEW)
(FPT-24P-M03)
24 : +INC2
23 : GND
22 : CS
21 : VCC (O)
20 : OUT
19 : VH
18 : VCC
17 : RT
16 : −INE3
15 : FB3
14 : CTL
13 : +INC1
2