Champstech 20N1 Series

Key features & specifications

General notes

1. Champs’ 20N1 series is earmarked to function in Opto-Isolated Active Clamp Forward circuits. The series originated as described by the LT3753 IC from Analog Devices. It can be and has been adapted successfully for all other ACF ICs from other manufacturers. Consult Champs-Tech application engineers.
2. The Secondary Side SR FETs are typically controlled by a Secondary Side IC [e.g. LT8311] – or through Direct Drive via Secondary winding supplied for V_in range 2:1.
3. In other applications the 20N1 Series can operate over a wider V_in range or configured for different Input & Output Voltage and Rated Power. Increased height allows increased power output due to higher current capability.
4. Integer Turns available from 1T to 16T. Can be used as Primary or Secondary. Mechanical configuration and outline allow for a “flex” arrangement. Contact factory for information on any power topology design.
5. All designs can be supplied with planar windings embedded in the pcb of the Main Module of the converter. Heat Sink and installed power components SM assembly and installation and incorporation into a module are also available.
6. Operating temp. = ambient + temperature rise. Must not exceed insulation class limit.
7. Contact Applications Engineering for custom variations

Part number & parameter table

Champs PN catalog — one table, all input-voltage ranges, sorted by V_in then V_out (ascending). All values at T_amb = 25 °C unless noted.