IW1781-30中文資料瑞薩數(shù)據(jù)手冊(cè)PDF規(guī)格書

● Support USB PD, optional QC2.0/3.0 and other

proprietary rapid charge protocols with secondary-side

interface circuits

● Pairs with iW657P to provide optimized USB PD solutions

● Support multi-level VBUS from 3V to 20V in 25mV

increments with multi-level current limits

● Proprietary secondary-to-primary digital

communication with single optocoupler for all the rapid

charge information:

x Output voltage request

x Output current limit

x Output voltage undershoot detection for fast

dynamic load response

x Over-voltage protection

● Tight multi-level constant-voltage and multi-level

constant-current regulation with primary-side feedback and control

● Ultra-low no-load power consumption with lowest

system cost (<20mW at 230VAC with typical 5V/3A setting)

● No audible noise over entire operating range

● Proprietary optimized load adaptive maximum

constant frequency PWM switching with quasiresonant

operation achieves best size, efficiency, and

common mode noise

● Multi-mode PWM/PFM control improves efficiency at

various load conditions

● Optional SmartGrouping control provides a

predictable frequency spectrum for mobile devices

with highly sensitive touch panels

● User-configurable 4-level cable drop compensation

independent of output voltage

● EZ-EMI TM design enhances manufacturability

● Built-in single-point fault protections against output

short-circuit including soft short and half short, output

over-voltage, and output over-current

● SmartDefender? smart hiccup technology

helps address issues of soft shorts in cables and

connectors by effectively reducing the average output

power at fault conditions without latch

● User-configurable external shutdown control