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LC5565LD Datasheet(PDF) 1 Page - Sanken electric |
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LC5565LD Datasheet(HTML) 1 Page - Sanken electric |
1 / 10 page 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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