MAX5075

PRODUCTION

Push-Pull FET Driver with Integrated Oscillator and Clock Output

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Overview

  • 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

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.

Applications

  • Current-Fed, High-Efficiency Power-Supply Modules
  • Power-Supply Building Subsystems
  • Push-Pull Driver Subsystems

MAX5075
Push-Pull FET Driver with Integrated Oscillator and Clock Output
MAX5075: Typical Operating Circuit
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Hardware Ecosystem

Parts Product Life Cycle Description
MOSFET & Gate Drivers 1
MAX5077 NOT RECOMMENDED FOR NEW DESIGNS Push-Pull FET Driver with Integrated Oscillator and Programmable Clock Output
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