Ultra-Low No-Load Power Digital Quasi-Resonant PWM Controller
iW1767 Product Brief
Ultra-Low No-Load Power Digital Quasi-Resonant PWM Controller
1.0 Features
●● Ultra-low no-load po...
Description
iW1767 Product Brief
Ultra-Low No-Load Power Digital Quasi-Resonant PWM Controller
1.0 Features
●● Ultra-low no-load power consumption with lowest system cost (< 20mW at 230VAC in typical 12V2A power supplies)
●● Fast dynamic response with secondary-side load transient detection
●● Adaptively controlled soft-start enables fast and smooth start-up for a wide range of capacitive loads (from 330μF to 6,000μF) with output voltage up to 12V
●● Tight constant-voltage and constant-current regulation across line and load range with primary-side feedback and control
●● Intelligent low power management achieves ultra-low operating current (~250μA) at no-load
●● Proprietary optimized 79kHz maximum constant frequency PWM switching with quasi-resonant operation achieves best size, efficiency, and common mode noise
●● User-configurable 5-level cable drop compensation provides design flexibility
●● EZ-EMI® design enhances manufacturability
●● Adaptive multi-mo...
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