LNK454集成電路（IC）的LED驅(qū)動器規(guī)格書PDF中文資料

Description

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.

Product Highlights

Dramatically Simplifies Off-line LED Drivers

? Flicker-free phase-controlled TRIAC dimming

? Single stage power factor correction and accurate constant current (CC) output

? Very low component count with small non-electrolytic bulk capacitor for compact replacement lamp designs

? Compact SO8, eSOP, and eDIP packages

? Completely eliminates control loop compensation

Advanced Performance Features

? Optimized for non-isolated flyback designs

? Frequency jitter greatly reduces EMI filter size and costs

? Low dissipation direct sensing of LED current

Advanced Protection and Safety Features

? Cycle skipping regulation for abnormally low output power to clamp peak output current delivered

? 725 V integrated power MOSFET allows small bulk capacitance and maximizes power capability

? Short-circuit, overload, open feedback and output overvoltage protection

? Hysteretic thermal shutdown

? Meets high-voltage creepage between DRAIN and all other pins both on PCB and at package

EcoSmart? - Energy Efficient

? High power factor optimizes system lumen per input VA

? Control algorithm balances switching and conduction losses over line and load to maintain optimum efficiency