STMicroelectronics Power Supply Controllers, Monitors SRK2001A

The SRK2001A is an adaptive synchronous rectification controller designed specifically for LLC resonant converters. It features dual gate drivers for N-channel MOSFETs, adaptive turn-off logic, and turn-on logic with adaptive masking time, optimizing performance in power supply applications. The device operates within a voltage range of 4.5 V to 32 V and supports an operating frequency of up to 500 kHz. It includes high voltage drain-to-source Kelvin sensing for each synchronous rectifier MOSFET and offers a low consumption mode with a quiescent current of 50 OºA, making it suitable for applications requiring efficient power management. The SRK2001A is packaged in a 10-pin SSOP format and is applicable in various power supply scenarios, including AC-DC adapters, all-in-one PCs, high-end flat panel TVs, and industrial SMPS. Its design minimizes external component requirements, facilitating easier integration into existing systems. The controller's innovative features, such as auto-compensation of parasitic inductance and programmable exit load levels from burst mode, enhance its utility in modern power supply designs.