KP2164DP

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Product Description

KP2164DP is an offline flyback AC-DC power switch IC designed for low-power adapter and charger applications. It integrates a 650V high-voltage MOSFET and primary-side control circuitry to provide a compact solution for isolated power supply designs.
The device operates in DCM flyback mode and supports constant voltage (CV) and constant current (CC) regulation, allowing it to be used in charger and adapter applications without requiring secondary-side feedback components.
KP2164DP includes multiple protection features such as over-voltage protection, over-load protection, thermal shutdown, UVLO, and current limiting to improve system reliability and safety.

Product group	Integrated Circuit (IC)
Package	DIP-8
Model Number	KP2164DP
Operating Mode	Multi-Mode Primary-Side Regulated (PSR) Constant Voltage / Constant Current (CV/CC) Flyback Power Switch
Product Keywords	AC-DC Power Switch, PSR Controller, CV/CC Flyback Controller, Offline Power Switch, Integrated Power Switch
Protections/Features	High-Voltage Startup, Cycle-by-Cycle Over-Current Protection (OCP), Output Over-Voltage Protection (OVP), Output Short-Circuit Protection (SCP), Over-Temperature Protection (OTP), Brown-In/Brown-Out Protection, Under-Voltage Lockout (UVLO), Soft Start, Green Mode
Internal MOS	Integrated 650V High-Voltage MOSFET
Output Current	Application dependent (Typical Adapter Power: 22W @ 230VAC, 20W @ 85–265VAC)
Application Area	AC-DC Power Adapters, USB Chargers, Consumer Electronics Power Supplies, Auxiliary Power Supplies, Offline Flyback Converters

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