DC852A

DC852A demonstration circuit showcases the LTC®4354 negative voltage diode-OR controller and monitor in a 200W, 36 to 72V application. Included on board are two S-8 ORing MOSFETs and an LED to indicate fault conditions. The -48V inputs are separated from RTN and from each other with at least 60 mils spacing, except for where drain sensing resistors bridge the gap. 93mil turrets make input and output connections; if removed, these accommodate insertion of up to 12 gauge wires for in-situ testing. The small size of this demonstration circuit facilitates grafting into a working system for evaluation purposes. On the backside of the board there are pads for D2-pak MOSFETs. The S-8 MOSFETs included on the board are avalanche rated and carry up to 5A for ATCA® applications.

• Input supply range from -100 to 100V
• 5A maximum output current
• 700ns typical commutation time