Highly Integrated, Compact Footprint

? Up to 94 efficiency across full load range

? Quasi-Resonant (QR) / CCM flyback controller, high-voltage switch4,

secondary-side sensing and synchronous rectification driver

? Integrated FluxLink?, HIPOT-isolated, feedback link

? Easily interfaces to load-directed and fast charge protocol ICs

? Constant Power (CP) Profile minimizes charging time with continuous

adjustment of output current and voltage

? Accurate CV/CC/CP, independent of external components

? External IS resistor allows custom CC programming

? Instantaneous transient response with 0-100-0 load step

? PowiGaN? technology – up to 100 W without heat sinks (INN3278C,

INN3279C and INN3270C)

EcoSmart? – Energy Efficient

? Less than 30 mW no-load including line sense

? Easily meets all global energy efficiency regulations

? Low heat dissipation

Advanced Protection / Safety Features

? Secondary switch or diode short-circuit protection

? Open SR FET-gate detection

? Fast input line UV/OV protection

Optional Features

? Cable-drop compensation with multiple settings

? Variable output voltage, constant current profiles

? Auto-restart or latching fault response for output OVP/UVP

? Multiple output UV fault thresholds

? Latching or hysteretic primary over-temperature protection

Full Safety and Regulatory Compliance

? Reinforced isolation

? Isolation voltage >4000 VAC

? 100 production HIPOT testing

? UL1577 isolation voltage 4000 VAC (max), TUV (EN62368-1),

CQC (GB4943.1) and DIN VDE V 0884-11 safety approved

? Excellent noise immunity enables designs that achieve class “A”

performance criteria for EN61000-4 suite; EN61000-4-2, 4-3

(30 V/m), 4-4, 4-5, 4-6, 4-8 (100 A/m) and 4-9 (1000 A/m)

Green Package

? Halogen free and RoHS compliant

Applications

? High efficiency flyback designs up to 100 W

? USB PD / QC / proprietary protocol chargers

Description

The InnoSwitch?3-CP family of ICs dramatically simplifies the design

and manufacture of flyback power converters, particularly those

requiring high efficiency and/or compact size. The InnoSwitch3-CP

family incorporates primary and secondary controllers and safety-rated

feedback into a single IC.

InnoSwitch3-CP family devices incorporate multiple protection features

including line over and undervoltage protection, output overvoltage

and over-current limiting, and over-temperature shutdown. Devices are

available that support the common combinations of latching and

auto-restart behaviors required by applications such as quick charge

and USB PD designs. The devices are available with and without

cable-drop compensation.