MAX5075

19-3662; Rev 0; 5/05 www.DataSheet4U.com Push-Pull FET Driver with Integrated Oscillator and Clock Output General Description The MAX5075 is a +4.5V to +15V push-pull, current-fed topology driver subsystem with an integrated oscillator for use in telecom module power supplies. The device drives two MOSFETs connected to a center-tapped transformer primary providing secondary-side, isolated, negative or positive voltages. This device features a programmable, accurate, integrated oscillator with a synchronizing clock output that synchronizes an external PWM regulator. A single external resistor programs the internal oscillator frequency from 50kHz to 1.5MHz. The MAX5075 incorporates a dual MOSFET driver with ±3A peak drive currents and 50% duty cycle. The MOSFET driver generates complementary signals to drive external ground-referenced n-channel MOSFETs. The MAX5075 is available with a clock output frequency to MOSFET driver frequency ratio of 1x, 2x, and 4x. The MAX5075 is available in a thermally enhanced 8-pin µMAX ® package and is specified over the -40°C to +125°C operating temperature range. Features ♦ Current-Fed, Push-Pull Driver Subsystem ♦ Programmable, Accurate Internal Oscillator ♦ Single +4.5V to +15V Supply Voltage Range ♦ Dual ±3A Gate-Drive Outputs ♦ 1mA Operating Current at 250kHz with No Capacitive Load ♦ Synchronizing Clock Frequency Generation Options ♦ Thermally Enhanced 8-Pin µMAX Package ♦ -40°C to +125°C Operating Temperature Range MAX5075 Ordering I...