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AC/DC Digital Power Controller for Dimmable LED Drivers
● Isolated AC/DC offline 100 VAC / 230 VAC LED driver
● Line frequency ranges from 45 Hz to 66 Hz
● Intelligent wall dimmer detection
Leading-edge dimmer
Trailing-edge dimmer
No-dimmer detected
Unsupported dimmer
● Hybrid dimming scheme
● Wide dimming range from 1% up to 100%
● No visible flicker
● Resonant control to achieve high efficiency, 85% without dimmer
● Temperature compensated LED current
● Small size design
Small size input bulk capacitor
Small size output capacitor
Small transformer
● Primary-side sensing eliminates the need for optoisolator feedback and simplifies design
● Tight LED current regulation ± 5%
● Fast start-up, typically 10 μA start-up current
● Hot-plug LED module support
● Multiple protection features:
LED open circuit protection
Single-fault protection
Over-current protection
LED short circuit protection
Current sense resistor short circuit protection
Over-temperature protection
Input over-voltage protection
● Up to 10 W output power
Applications:
Dimmable LED luminaires
Optimized for 3 W to 10 W output power
浙公網安備 33010502000757號