● 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