MB3825A Fujitsu Microelectronics, Inc., MB3825A Datasheet - Page 4

• Manufacturer Part Number: MB3825A
• Description: 6-ch DC/DC Converter ic With Synchronous Rectifier
• Manufacturer: Fujitsu Microelectronics, Inc.

4
MB3825A
Control Circuit
Triangular-
Oscillator
Circuit
Wave
CH 5
CH 6
Pin No.
17
16
15
14
64
12
11
10
21
22
30
29
13
23
26
2
1
3
8
9
4
6
5
7
8
OVP5, 6
OVP5, 6
Symbol
OUT1-5
OUT1-6
IN (C) 5
IN (C) 6
IN (E) 5
IN (E) 5
CB1-5
CB2-5
IN (E) 6
IN (E) 6
CB1-6
CB2-6
CSCP
CTL1
CTL2
SCP
VB5
VB6
FB5
FB6
CS
RT
CT
I/O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
Channel 5 error amplifier output terminal.
Channel 5 error amplifier inverted input terminal.
Channel 5 error amplifier non-inverted input terminal.
Channel 5 short detection comparator input terminal.
Channel 5 output terminal.
Channel 5 boot capacitor connection terminal.
Channel 5 output sink current setting terminal.
Channel 5, 6 output maximum voltage setting terminal.
Channel 6 error amplifier output terminal.
Channel 6 error amplifier inverted input terminal.
Channel 6 error amplifier non-inverted input terminal.
Channel 6 short detection comparator input terminal.
Channel 6 output terminal.
Channel 6 boot capacitor connection terminal.
Channel 6 output sink current setting terminal.
Channel 5, 6 output maximum voltage setting terminal.
Triangular wave frequency setting resistor connection terminal.
Triangular wave frequency setting capacitor connection terminal.
Power supply control circuit.
Channel 3 control circuit.
When CTL1 terminal is “H” level
Short detection comparator input terminal.
Short protection circuit capacitor connection terminal.
Soft-start circuit capacitor connection terminal.
“H” level : Power supply operating mode
“L” level : Standby mode
“H” level : Channel 3 in operating mode
“L” level : Channel 3 in OFF mode
Descriptions
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