IW1770中文資料瑞薩數(shù)據(jù)手冊PDF規(guī)格書

● No-load power consumption < 50mW at 230VAC along

with fast dynamic load response and short turn-on

delay in typical 20W and above adapter applications

● PrimAccurateTM primary-side feedback eliminates

opto-isolators and simplifies design

● Peak power mode provides momentary peak power

higher than the maximum continuous output power

without design cost and size increase

● 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 of 12V and above

● Tight constant-voltage (CV) regulation across line and load range

● Proprietary optimized 79kHz maximum PWM

switching frequency with quasi-resonant operation

achieves best size, efficiency and common mode

noise

● User-configurable 5-level cable drop compensation

● EZ-EMI? design enhances manufacturability

● Adaptive multi-mode PWM/PFM control improves

efficiency and eliminates audible noise

● Built-in single-point fault protections against output

short-circuit, output over-voltage, output over-current,

and current-sense-resistor-short fault

● On-chip internal over-temperature protection

● Dedicated pins for user-configurable external shutdown control