MAXREFDES116A#

The MAXREFDES116A# is an isolated 24V to 5V, 40W power supply reference design. It an efficient active clamp topology design with 24V input and 5V output at 40W of power (8A). The design features MAX17599, an active clamp, low IQ, wide input range current mode PWM controller optimized. The MAX17599 contains all the control circuitry required for design of wide input isolated forward converter industrial power supplies. The reference design features active-clamp transformer reset topology for forward converters. This reset topology has several advantages including reduced voltage stress on the switches, transformer size reduction due to larger allowable flux swing and improved efficiency due to elimination of dissipative snubber circuitry. It is used in PLC, telecom/datacom power supplies, isolated battery chargers, servers and embedded computing. Isolated with a readily available transformer from multiple global vendors & provides quick, convenient transformer selection.

• Functional insulation
• Compact and flexible
• Low power dissipation
• Peak efficiency of 91.5% and design is set to switch at 350KHz
• Minimal external components
• Robust operation in adverse environments
• Start-up voltage and input overvoltage protection setting (EN/UVLO, OVI)
• Entire circuit fits on a 20mm x 70mm board
• Operates over a 17V to 36V input voltage range and provides up to 8A at 5V output

Applications

Power Management, Industrial, Automation & Process Control

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party