MAX25256 H-Bridge Transformer Driver

Analog Devices MAX25256 H-Bridge Transformer Driver provides a simple solution for making isolated power supplies up to 10W. The device drives a transformer’s primary coil with up to 300mA of current from a wide 8V to 36V direct current (DC) supply. The transformer’s secondary-to-primary winding ratio defines the output voltage, allowing the selection of virtually any isolated output voltage. The device features adjustable current limiting, allowing indirect limiting of secondary-side load currents. An external resistor sets the current limit of the MAX25256. An output asserts when the device detects an overtemperature or overcurrent condition. In addition, the device features a low-power mode to reduce the overall supply current to 0.65mA (typ) when the driver is not in use.