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LNK420EG
LED Driver, Constant Current, 66 kHz, eSIP-7C, LinkSwitch-PH, Through Hole
產品訊息
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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.
產品總覽
LinkSwitch™-PH single-stage PFC, primary-side constant current control and TRIAC dimming/non-dimming options dramatically simplifies implementation of LED drivers requiring long lifetime, high efficiency, PF >0.9, and TRIAC dimming capability (LNK403-410). 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. Meets high voltage creepage requirement between DRAIN and all other signal pins both on PCB and at package. Typically used in off-line LED driver applications.
- Minimum output power of 18W at CBP = 10µF and 31W at CBP = 100µF (85-132VAC, RV = 2Mohm)
- Dramatically simplifies off-line LED drivers, EcoSmart™ energy efficient
- Accurate and consistent performance, advanced protection and safety features
- Auto-restart for short-circuit protection, open circuit fault detection mode
- Single-stage combination of power factor correction and accurate constant-current (CC) output
- Simple primary-side PWM dimming interface, universal input voltage range
- Single-stage PFC combined with output CC control
- Greatly increases efficiency, >90% achievable, reduces component count, no current sense resistors
- Low standby power remote ON/OFF feature (<50mW at 230VAC)
- Compensates for transformer inductance variations, compensates for line input voltage variation
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