M51995AFP

The Renesas M51995AFP is a primary switching regulator controller specifically designed to derive regulated DC voltage from AC power supplies. This IC is capable of directly driving MOSFETs with fast rise and fall output pulses, enabling the realization of true fast switching regulators.

Key electrical specifications include a supply voltage of 36V, an operating frequency of 500 kHz, and an output current capability of ±2A with rise and fall times of 60ns and 40ns respectively. The device features a high-speed current limiting circuit using a pulse-by-pulse method for protection against short and overcurrent conditions, facilitated by an integrated timer-type protection circuit.

Additional features include an externally resettable over-voltage protection (OVP) circuit and undervoltage lockout (UVLO) protection. The M51995AFP is housed in a compact SOP package, contributing to smaller and lighter power supply designs. Its simplified peripheral circuit and built-in large-capacity totem-pole output enhance its usability.

This component is suitable for applications requiring efficient and reliable power conversion. The integrated triangular wave oscillator simplifies dead time setting, further aiding in design implementation.