LC5540LF Просмотр технического описания (PDF) - Sanken Electric co.,ltd.
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LC5540LF Datasheet PDF : 13 Pages
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LC5540LF
Series
Single-Stage Power Factor Corrected
Off-Line Switching Regulators
Functional Block Diagram
OVP ⑥7
OCP ④
NC ⑥
VCC
③
OVP
TSD
UVLO
Contol Part
START UP
Reg
Drv
Bias
S
RQ
Bottom
Detection
OCP LEB
Reg
OSC
OLP
Feedback
Control
① D/ST
② S/GND
⑤FB
LC554xF Series Terminal List Table
Number Name
Function
1
D/ST MOSFET drain terminal and input of the startup current
2
S/GND MOSFET source and GND terminal for the Control Part
3
VCC Supply voltage input and Overvoltage protection (OVP) signal input
4
OCP
Overcurrent Protection, quasi-resonant signal input terminal, and
Overvoltage Protection (OVP) signal input
5
FB
Feedback signal input and Overload Protection (OLP) signal input
6
NC No connection
7
OVP Overvoltage Protection (OVP) signal input
Pin-out Diagrams
D/ST
1
S/GND
VCC
OCP
FB
NC
OVP
2
3
4
5
6
7
(LF 3051)
D/ST
1
S/GND
VCC
OCP
FB
NC
OVP
2
3
4
5
6
7
(LF 3052)
1
D/ST
2
S/GND
3
VCC
(LF 3054)
4
OCP
5
FB
6
NC
7
OVP
LC5540LF-DS
8
SANKEN ELECTRIC CO., LTD.
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