iW3622
iW3622 is Off-Line Digital Power Controller manufactured by Dialog Semiconductor.
i W3622 Product Summary
Off-Line Digital Power Controller for LED Driver with High Power Factor and Low-Ripple Current
1.0 Features
2.0 Description
- - All-in-one non-dimmable low-cost off-line LED driver (isolated and non-isolated applications)
- - Supports universal input voltage range (90VAC to 277VAC) and output power up to 45W
- - High power factor (PF) with low current-ripple control technology
- - User-configurable power factor setting (> 0.7 to > 0.95)
- - Able to achieve low THD (< 20%)
- - User-configurable internal or external over-temperature protection (OTP) with temperature-current derating
- - Tight LED current regulation (±5%) across line and load, and within primary inductance tolerance (±20%)
- - Isolated design without opto-coupler
- - Stabilized LED current-ripple control without visible shimmer or flicker
- - Active start-up scheme enables fastest possible start-up
- - 72k Hz nominal PWM switching frequency with quasiresonant...