Lzc8650c Ic Datasheet Pdf Better Repack Jun 2026
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Used in flicker-free lighting designs due to its stable PFC control.
+----------------- T1 (Flyback Transformer) ---------------+ | | AC Line --+--- [ Rectifier ] ---+-------[ Primary Winding ]-------+ |---> [Output LED Load] | | | [R_start] [MOSFET] | | | | +---(VDD) +---/ | | | | | | [LZC8650C] | | | | | | | (DRV)---------------------+ | | | | +---(FB)----[ Auxiliary Winding ]-------+ 1. Isolated Flyback Topology
Varying AC line inputs can cause subtle fluctuations in output current precision. The LZC8650C integrates an internal line voltage compensation loop. This mechanism auto-adjusts internal thresholds based on whether the system is running on 110V AC or 270V AC, keeping output current tolerances tight at around Critical Pinout Configurations (SOP-8) lzc8650c ic datasheet pdf better
: Features built-in hardware protection lines to safeguard against voltage spikes, overheating, and shorts. Technical Specifications & Pin Configuration
: Active PFC delivering a high power factor ( >0.95is greater than 0.95 Total Harmonic Distortion (THD) :
Current sense pin. It monitors the voltage across a sense resistor connected to the primary MOSFET's source for cycle-by-cycle current limiting. GND (Pin 4): Power and signal ground. A “better” datasheet solves all of these pain points
85V AC to 300V AC (Universal Mains compliance). Power Factor (PF): >0.95is greater than 0.95 under typical load conditions. Total Harmonic Distortion (THD): at full rated load. System Efficiency: under full-load conditions.
Input Overvoltage Protection (OVP) and Undervoltage Lockout (UVLO). Output short-circuit and over-temperature protection. Cycle-by-cycle current limiting.
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Protects the IC from excessive supply voltage.
Newer ICs might offer better efficiency at low loads.
Designed for high power factor applications (PF > 0.95 [5]).