MB39A112 Datasheet, PDF (3/35 Pages) Fujitsu Component Limited. – 3-ch DC/DC Converter IC

MB39A112
s PIN DESCRIPTION
Pin No. Symbol
I/O
1
CS1

2
− INE1
I
3
FB1
O
4
VCC

5
RT

6
CT

7
GND

8
FB2
O
9
− INE2
I
10
CS2

11
CS3

12
− INE3
I
13
FB3
O
14
CSCP

15
GNDO

16
VH
O
17
OUT3
O
18
OUT2
O
19
OUT1
O
20
VCCO

Descriptions
CH1 soft-start setting capacitor connection terminal.
CH1 error amplifer inverted input terminal.
CH1 error amplifer output terminal.
Control circuit power supply terminal.
Triangular-wave oscillation frequency setting resistor connection terminal.
Triangular-wave oscillation frequency setting capacitor connection terminal.
Ground terminal.
CH2 error amplifier output terminal.
CH2 error amplifier inverted input terminal.
CH2 soft-start setting capacitor connection terminal.
CH3 soft-start setting capacitor connection terminal.
CH3 error amplifier inverted input terminal.
CH3 error amplifier output terminal.
Timer-latch short-circuit protection capacitor connection terminal.
Ground terminal.
Power supply terminal for driving output circuit. (VH = VCCO − 5 V) .
CH3 external Pch MOS FET gate driving terminal.
CH2 external Pch MOS FET gate driving terminal.
CH1 external Pch MOS FET gate driving terminal.
Power supply terminal for driving output circuit. (Connect to same potential
as VCC terminal).
3