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INN3278C

Part Number	INN3278C
Manufacturer	Power Integrations
Description	Off-Line CV/CC QR Flyback Switcher
Published	Dec 31, 2022
Detailed Description	InnoSwitch3-CP Family Off-Line CV/CC QR Flyback Switcher IC with Integrated Primary Switch, Synchronous Rectification, ...
Datasheet	INN3278C PDF File

Overview

InnoSwitch3-CP Family Off-Line CV/CC QR Flyback Switcher IC with Integrated Primary Switch, Synchronous Rectification, FluxLink Feedback and Constant Power Profile Product Highlights 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 10...

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