iW1761 Description
iW1761 Product Brief Ultra-Low No-Load Power Digital Quasi-Resonant PWM Controller 1.0.
iW1761 Key Features
- Ultra-low no-load power consumption with lowest system cost (< 10mW at 230VAC in typical 5V/2A,10W power supplies)
- Primary-side feedback eliminates opto-isolators and simplifies design
- Intelligent low power management achieves ultra-low operating current (~300μA) at no-load
- Adaptive load transient detection and fast response
- Tight constant-voltage and constant-current regulation across line and load range
- Proprietary optimized 89kHz maximum constant frequency PWM switching with quasi-resonant operation achieves best size, e
- User-configurable 5-level cable drop pensation provides design flexibility
- EZ-EMI® design enhances manufacturability
- Adaptive multi-mode PWM/PFM control improves efficiency
- No external loop pensation ponents required