NCP43080DMNTWG

The NCP43080DMNTWG from ON Semiconductor is a synchronous rectifier controller engineered for high-efficiency switch mode power supplies, particularly in flyback and quasi-resonant flyback topologies. This controller offers flexibility with externally adjustable minimum off-time and on-time blanking periods, allowing for precise driving of various MOSFET package types and PCB layouts.

Key features include self-contained control for CCM, DCM, and QR applications, precise true secondary zero current detection, and a rugged current sense pin capable of handling up to 150V. The device boasts an 8A/4A peak current sink/source drive capability and operates within a voltage range up to 35V. It also incorporates automatic light-load and disable modes, an adaptive gate drive clamp, and GaN transistor driving capability for advanced applications.

Designed for reliability and noise-less operation, the NCP43080DMNTWG utilizes a self-synchronization feature. It employs Kelvin connection of the driver to the MOSFET for high efficiency at full load and a light load detection architecture for efficiency at lighter loads. The controller is available in SOIC-8, DFN-8 (4x4), and WDFN8 (2x2) packages, with this specific part number in an 8-DFN (4x4) surface mount package.

Typical applications include notebook adapters, high power density AC/DC power supplies, cell phone chargers, and LCD TVs, making it suitable for all SMPS requiring high efficiency.