Datasheet
The MAX5058 EV kit is a high-efficiency 50W isolated synchronous rectifier forward converter that uses an industrial standard 1/8 brick footprint. This evaluation board is configured for a +3.3V output and can provide up to 15A of output current. It is powered by +36V to +72V or -36V to -72V and can be used in telecommunications/data communications (48V modules), industrial or 42V automotive power systems.
User Manual
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. The MAX5058/MAX5059 complement the MAX5051 and MAX5042/MAX5043 primary-side PWM ICs and enable the design of high-efficiency synchronously rectified isolated power supplies. Simultaneous conduction of the primary side and the freewheeling synchronous rectifier MOSFET is avoided by having a look-ahead signal (before the primary-side MOSFETs turn ON), thus eliminating large current spikes resulting from a shorted transformer secondary. An on-board error amplifier with a versatile current reference output enables virtually unlimited possibilities in reference-voltage generation. Reference voltage for the error amplifier is generated by connecting an appropriate resistor to this output. Low on-resistance margining MOSFETs integrated on-chip allow for implementation of a margining circuit without the use of external switches. The MAX5058 provides a 5V LDO output for logic-level MOSFETs while the MAX5059 provides a 10V LDO output for conventional 10V MOSFETs. The MAX5058/MAX5059 are designed to enable paral- leling of multiple power supplies for accurate current sharing using a sim
