General Description
The MAX5058/MAX5059 enable secondary-side synchronous rectification in isolated power supplies using widely available power MOSFETs. These devices facilitate the commutation of the secondary-side MOSFETs by providing a clean gate-drive signal that is synchronized to the power MOSFET switching in the primary side of the isolation transformer.

Features
♦ Clean Drive Waveforms for Synchronous
   MOSFETs
♦ Utilization of a Look-Ahead Signal from the
   Primary for Proper Turn-On/Turn-Off Times
♦ Synchronous Rectifier Drivers Capable of
   Sourcing and Sinking Up to 2A Peak Current
♦ Internal Gate-Voltage Regulator for 5V (MAX5058)
   or 10V (MAX5059) Gate-Drive Voltage
♦ Internal Error Amplifier
♦ Accurate Differential Current-Share/Force Circuit
   Allows Paralleling of Several Power Supplies for
   High Output Current
♦ Internal Remote Voltage-Sense Amplifier
♦ Flexible Reference-Voltage Generation
♦ Output Voltage Regulation Down to 0.5V
♦ Low Quiescent Current Consumption of 2.5mA
♦ Integrated Digital Output Margining Circuit Saves
   External Parts and Board Space
♦ 30ns Propagation Delay Time from Pulse Input
   to Output
♦ Automatic Detection of Discontinuous Current
   Conduction and Turn-Off of the Freewheeling
   MOSFET
♦ High Efficiency at Low Output Currents and
   Reverse-Current Protection
♦ Open-Drain Overtemperature Warning Flag
♦ 28-Pin Thermally Enhanced TSSOP Package

Applications
   Isolated Telecom Power Supplies
   Isolated Networking Power Supplies
   ±48V Power-Supply Modules
   Industrial Power Supplies
   ±48V/±12V Server Power Supplies