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用可控硅调光驱动IC的LED单级PFC和非隔离恒流控制的应用LNK454/456-458/460
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The LinkSwitch-PL family enables a very small and low cost single-stage power factor corrected constant current driver for solid state lighting. Optimized for direct LED current sensing， the LinkSwitch-PL operates over a wide input voltage range delivering an output power of up to 16 W. The LinkSwitch-PL control algorithm provides flicker-free TRIAC dimming with minimal external components. Each device incorporates a 725 V rated power MOSFET， a novel discontinuous mode variable frequency variable on-time controller， frequency jitter， cycle-by-cycle current limit and hysteretic thermal shutdown in a monolithic 4-pin IC， available in SO-8C， eSOP-12， and eDIP-12 packages.
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