SC1205H - Semtech

SC1205H High Speed Syncronous Power MOSFET Driver

The SC1205H is a cost effective, High Drive Voltage, Dual MOS.ET Driver designed for switching High and Low side Power MOS.ETs. Each driver is capable of Ultrafast rise/fall times as well as a 20ns max propagation delay from input transition to the gate of the power .ET’s. An internal Overlap Protection circuit prevents shootthrough from Vin to GND in the ma.

Features

that allow fast switching and low propagation delays. .ast Switching Drives As the switching frequency of PWM controllers is increased to reduce power supply volume and cost, fast rise and fall times are necessary to minimize switching losses (TOP MOS.ET) and reduce dead-time (BOTTOM MOS.ET) losses. While low Rds_On MOS.ET’s present a power saving in I2R losses, the MOS.ETs die area is larger and the effective input capacitance of the MOS.ET is increased. Often a 50% decrease in Rds_On doubles the effective input gate charge, which must be supplied by the driver. The Rds_On power savings can b.