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LC5565LD Datasheet(PDF) 1 Page - Sanken electric

No. de pieza LC5565LD
Descripción Electrónicos  LC5560LD Series Single-Stage Power Factor Corrected Off-Line Switching Regulators for LEDs
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Fabricante Electrónico  SANKEN [Sanken electric]
Página de inicio  http://www.sanken-ele.co.jp/en
Logo SANKEN - Sanken electric

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SANKEN ELECTRIC CO., LTD.
Description
The LC5560LD series is the power IC for the non-iso-
lated type LED driver which has an incorporated power
MOSFET, designed for input capacitorless applications, and
making it possible for systems to comply with the harmon-
ics standard (IEC61000-3-2 class C).
The controller adapts the average current control method for
realizing high power factors, and the quasi-resonant topol-
ogy contributes to high efficiency and low EMI noise.
The incorporated MOSFET has a VDSS(min) rating of
650 V. The RDS(on)(max) is 1.9 Ω (LC5566LD) to 3.95 Ω
(LC5565LD). It is capable of a maximum output power
of 20 W on 230 VAC supply to 16 W on universal supply
(LC5566LD) based on the thermal rating. Note that the
maximum output power can be up to 120% to 140% of
this value. However, it may be limited in applications with
low output voltage or short duty cycle. The PWM oscilla-
tion frequency ranges from 60 kHz (LC5566LD) to 72 kHz
(LC5565LD).
The series is housed in DIP8 packages. The rich set of pro-
tection features helps to realize low component counts, and
high performance-to-cost power supply.
Features and Benefits
• Integrated on-time control circuit (it realizes high power
factor by average current control)
• Integrated startup circuit (no external startup
circuit necessary)
• Integrated soft-start circuit (reduces power stress during
start-up on the incorporated power MOSFET and output
rectifier)
• Integrated bias assist circuit (improves startup
performance, suppresses VCC voltage droop during
operation, and allows use of low-rated ceramic capacitor
on VCC pin)
• Integrated Leading Edge Blanking (LEB) circuit
• Integrated maximum on-time limit circuit
• Dual-chip structure, with an avalanche-guaranteed power
MOSFET (allows simplified surge suppressing circuits)
• Protection features:
▫ Overcurrent protection (OCP): pulse-by-pulse
▫ Overvoltage protection (OVP): latched shutdown
▫ Overload protection (OLP): latched shutdown
▫ Thermal shutdown (TSD): latched shutdown
LC5560LD Series Single-Stage Power Factor Corrected
Off-Line Switching Regulators for LEDs
Typical Application
Package: 8-pin DIP
Not to scale
LC5560LD Series
LC5560LD-DS
5
1
2
3
D/ST
8
S/GND VCC
Control
Part
C2
C5
D8
U1
D1
D3
D2
D4
F1
L1
C1
D5
C4
DZ1
COMP
D6
T1
C3
D7
L2
LED
OCP
ISENSE
VREF
R1
C6
D9
(Rocp)
R2
R3
R4
R5
R6
R7
VAC
C8
C7
C9
C11
C12
LC556xLD
6
4
C10
R8
Applications
• LED lighting fixtures
• LED light bulbs


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