M51995 Mitsubishi, M51995 Datasheet - Page 12
M51995
Manufacturer Part Number
M51995
Description
SWITCHING REGULATOR CONTROL
Manufacturer
Mitsubishi
Datasheet
1.M51995.pdf
(27 pages)
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Manufacturer
Quantity
Price
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AC
AC
FUNCTION DESCRIPTION
Type M51995AP and M51995AFP are especially designed for
off-line primary PWM control IC of switching mode power supply
(SMPS) to get DC voltage from AC power supply.
Using this IC,smart SMPS can be realized with reasonable
cost and compact size as the number of external electric
C
C
FIN
FIN
2
4
2
4
3
1
3
1
14
14
13
Fig.1 Example application circuit diagram of feed forward regulator
Fig.2 Example application circuit diagram of fly-back regulator
13
15
15
M51995AP
M51995AP
9
9
A
10
10
C
C
F
R
F
11 12
R
11 12
ON
ON
C
R
(
R
T
8
OFF
12
8
OFF
6
6
/ 27 )
Pin No.is related with M51995AP
Pin No.is related with M51995AP
7
parts can be reduced and also parts can be replaced by
reasonable one.
In the following circuit diagram,MOS-FIT is used for output
transistor,however bipolar transistor can be used with no
problem.
7
16
16
5
5
OVP
R1
SWITCHING REGULATOR CONTROL
MITSUBISHI (Dig./Ana. INTERFACE)
F/B
R21
R22
Cvcc
R1
R2
Cvcc
M51995AP/FP
OVP
F/B
A
ON/OFF
V
V
OUT2
OUT1
V
OUT