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LC5523F Datasheet(PDF) 3 Page - Sanken electric

Part # LC5523F
Description  LC5500 Series Single-Stage Power Factor Corrected Off-Line Switching Regulators
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Manufacturer  SANKEN [Sanken electric]
Direct Link  http://www.sanken-ele.co.jp/en
Logo SANKEN - Sanken electric

LC5523F Datasheet(HTML) 3 Page - Sanken electric

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SANKEN ELECTRIC CO., LTD.
LC5500-AN, Rev.1.2
S/GND
TSD
LEB
D/ST
STARTUP
Reg
Bias
UVLO
VCC
OCP
OVP
OSC
OCP
Detection
Bottom
Reg
Control
Feedback
OLP
⑧
①
②
③
④
Drv
COMP
⑥ ISENSE
Q
S
R
OTA
⑤
NF
Controller Chip
Figure 2. LC551xD series functional block diagram (for non-isolated DIP8 designs)
LC551xD Series Terminal List Table
Number
Name
Function
1
S/GND
MOSFET source and GND terminal for the Controller chip
2
VCC
Supply voltage input and Overvoltage protection (OVP) signal input
3
OCP
Overcurrent Protection, quasi-resonant signal input terminal, and
Overvoltage Protection (OVP) signal input
4
COMP
Feedback phase-compensation input
5NF
No function; must be externally connected to S/GND pin with as short
a trace as possible, for stable operation of the IC
6
ISENSE
Output current sensing voltage input and Overvoltage Protection
(OVP) signal input
7
–
Pin removed
8
D/ST
MOSFET drain terminal and input of the startup current
Block Diagrams and Pin Descriptions
This section provides block diagrams and pin descriptions of:
• LC551xD for non-isolated DIP8 designs
• LC552xD for isolated DIP8 designs
• LC552xF for isolated TO-220-7L designs
1
2
3
4
8
6
5
D/ST
ISENSE
NF
S/GND
VCC
OCP
COMP
Pin-out Diagram
(LC551xD)


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