M51995AFP

M51995AP/AFP Switching Regulator Control REJ03D0835-0201 Rev.2.01 Nov 14, 2007 Description M51995A is the primary switching regulator controller which is especially designed to get the regulated DC voltage from AC power supply. This IC can directly drive the MOS-FET with fast rise and fast fall output pulse. Type M51995A has the functions of not only high frequency OSC and fast output drive but also current limit with fast response and high sensibility so the true “fast switching regulator” can be realized. It has another big feature of current protection to short and over current, owing to the integrated timer-type protection circuit, if few parts are added to the primary side. The M51995A is equivalent to the M51977 with externally re-settable OVP (over voltage protection) circuit. Features 500 kHz operation to MOS FET  Output current : ±2 A  Output rise time 60 ns, fall time 40 ns  Modified totempole output method with small through current Compact and ligh...