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LNK460 Dataheets PDF



Part Number LNK460
Manufacturers Power Integrations
Logo Power Integrations
Description LED Driver IC
Datasheet LNK460 DatasheetLNK460 Datasheet (PDF)

www.DataSheet4U.com LNK454/456-458/460 LinkSwitch-PL Family ® LED Driver IC with TRIAC Dimming, Single-Stage PFC and Constant Current Control for Non-Isolated Applications Product Highlights Dramatically Simplifies Off-line LED Drivers • Single stage power factor correction and accurate constant current (CC) output • Flicker-free phase-controlled TRIAC dimming • Very low component count with small non-electrolytic bulk capacitor, for compact replacement lamp designs • Compact SO8 package •.

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www.DataSheet4U.com LNK454/456-458/460 LinkSwitch-PL Family ® LED Driver IC with TRIAC Dimming, Single-Stage PFC and Constant Current Control for Non-Isolated Applications Product Highlights Dramatically Simplifies Off-line LED Drivers • Single stage power factor correction and accurate constant current (CC) output • Flicker-free phase-controlled TRIAC dimming • Very low component count with small non-electrolytic bulk capacitor, for compact replacement lamp designs • Compact SO8 package • 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 PR EL IM IN AR Y D CONTROL S FB AC IN LinkSwitch-PL BP PI-5835-060710 Advanced Protection and Safety Features • 725 V integrated MOSFET allows small bulk capacitance and maximizes power capability • Latching shutdown protection for short-circuit / open feedback and output overvoltage • Auto-restart for overload condition • 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 watt by reducing input VA • Control algorithm balances switching and conduction losses over line and load to maintain optimum efficiency • Cycle skipping regulation for abnormally low output power to clamp peak output current delivered Figure 1. Basic Application Schematic. Output Power Table Product 2 LNK454D LNK456D LNK457D/V LNK458V LNK460V 85-265 VAC Minimum Output Maximum Output Power1 Power1 1.5 W 3W 3W 6W 4W 8W 6W 11.5 W 8W 16 W Table 1. Output Power Table. Notes: 1. Maximum practical continuous power in an open frame design with adequate heat sinking, measured at +50 °C ambient (see Key Applications Considerations for more information). 2. Packages: D: SO-8C, V: eDIP-12. Description Output Current 700 mA LNK454 LNK456 LNK457 LNK458 LNK460 LNK460 1000 mA LNK456 LNK457 LNK458 LNK460 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 and eDIP-12 packages. Number of Serial LEDs 1 2 3 4 5 6 7 8 9 10 11 12 350 mA 500 mA LNK454 LNK454 LNK456 LNK456 LNK457 LNK457 LNK458 LNK458 LNK458 LNK460 LNK460 LNK460 LNK454 LNK456 LNK456 LNK457 LNK458 LNK458 LNK460 LNK460 LNK460 Figure 2. Device Selection bas.


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