LNK407EG

The LNK407EG is a LinkSwitch™-PH dramatically simplifies implementation LED Driver requiring long lifetime and high efficiency. The single-stage combined power factor and constant-current controller eliminates a switching stage and the electrolytic bulk capacitor. The advanced primary-side control used by the LinkSwitch™-PH device provides accurate constant current control while eliminating the need for an optocoupler and current sensing circuits. LinkSwitch™-PH incorporates a 725V power FET, a continuous mode PWM controller, a high-voltage switched current source for self biasing, frequency jittering, protection circuitry including cycle-by-cycle current limit and hysteretic thermal shutdown.

• Single-stage combination of power factor correction and accurate constant-current (CC) output
• Simple primary-side PWM dimming interface
• Universal input voltage range
• EcoSmart™ - Energy efficient
• Greatly increases efficiency, <gt/>90% achievable
• Reduces component count
• No current sense resistors
• Low standby power remote ON/OFF (<lt/>50mW at 230VAC)
• Accurate and consistent performance
• Compensates for transformer inductance variations
• Compensates for line input voltage variation
• Frequency jittering greatly reduces EMI filter size
• Auto-restart for short-circuit protection
• Open circuit fault detection mode
• Automatic thermal shutdown restart with hysteresis
• 5.44A DRAIN pin peak current
• -0.3 to 725V DRAIN pin voltage
• -0.3 to 9V BYPASS pin voltage
• 100mA BYPASS pin current

Applications

LED Lighting