LC5523D Datasheet, PDF (1/9 Pages) Sanken electric – Hybrid IC

LED lighting IC with high power factor using one converter
LC5523D
◆Outline
LC5523D is single stage, power factor corrected off-line LED
driver ICs. It incorporates controller and power MOSFET in
package of DIP8, and met the Class-C of harmonics regulation
using one converter method.
The controller adopts the average current control method for high
power factor. In addition, with the quasi-resonant topology, a
system can realize a high efficiency converter with low EMI noise.
It has various protection features, which reduce peripheral
component count, helping the system designer to improve power
supply cost performance and reduce overall system size.
◆Package
Package name：DIP8
02 November 2011
◆Application
 LED lighting apparatus
 LED bulb
◆Feature
 DIP8 Package(Pb Free)
 On-width control circuit
 Integrated startup circuit
 Soft-start function
 Bias assist function
 Built-in an avalanche-guaranteed power MOSFET
 Leading Edge Blanking (LEB) timer
 Fixed maximum on-time.
◆Main Spec.
 Pout：20W／16W(AC230V／Universal)
 MOSFET VDS(MIN)：650V
 RDS(ON)(MAX)：1.9
 Protection feature
---- Over current protection (OCP) ,pulse by pulse
---- Over voltage protection (OVP)with latch shutdown
---- Over load protection (OLP)with latch shutdown
---- Thermal shutdown (TSD) with latch shutdown
*Latch shutdown･･･Operation which protects by continuing
an oscillation stop.
The example of an application circuit
F1
L1
D1
D2
L2
C11
T1
VAC
C1
D3
D4
C8
R5
C2
D9
U1
LC5523D
8
6
5 ^S/GND
D5
R1
C4
D/ST
OVP NC
PC2
C3
Cont．
Block
R6
D6
D8
PC2
R8 ^R10
C9
C10
Q1
R13
LED
R9
PC1
R11
R14
R12
C13 R17
R15
DZ2 _DZ1
R18
-
U2 +
C12
C15 ^{R19 R20 C16}
C17
C14
R16
S/GND Vcc OCP FB
1234
C5
ROCP
R3
R7
C6
D7
R4
PC1
C7
Sanken Electric Co.,Ltd.
http://www.sanken-ele.co.jp
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