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MM1548 Datasheet(PDF) 2 Page - Mitsumi Electronics, Corp.

Part # MM1548
Description  Secondary Control for Energy-Saving AC Adaptor Monolithic IC
PDF  12 Pages
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Manufacturer  MITSUMI [Mitsumi Electronics, Corp.]
Direct Link  https://www.mitsumi.co.jp/index_e.html
Logo MITSUMI - Mitsumi Electronics, Corp.

MM1548 Datasheet(HTML) 2 Page - Mitsumi Electronics, Corp.

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MITSUMI
Secondary Control for Energy-Saving AC Adaptor MM1548
MITSUMI
Block Diagram
GND
5
CS
6
PO1
4
VCC
3
CNT
2
OUT
1
COUT
ROS1
ROS2
RCS
Constant current detection resistor
(CS=34mV)
Reference voltage decrease (drop)
Constant current control
(CS=114.4mV)
Constant voltage control
(VCC=5.1V)
Load detection(voltage)
(VCC=3.5V)
Over voltage
detection
(7V)
5k
Load detection(current)
(115mV 200mV)
Input/output difference control
(VCC-OUT=200mV)
Voltage buffer
Photocoupler-turn-off
Primary-side switching
control
RLS
Load detection resistor
RLB
VCC
1.25V
Reference voltage
PC1
RL1
VCC=4.6V



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