DC1625A-B

DC1625A-B demonstration circuit is intended to demonstrate performance of LTC4227-2 dual ideal diode and Hot Swap™ controller. Each rail has an individual ideal diode. Ideal diode outputs are connected to load through a single Hot Swap circuit. The DC1625 allows verifying LTC4227 Hot Swap and ideal diode functionality during individual supply ramp-up and ramp-down transients, during power supply switchover, steady state, and overcurrent fault conditions. Each DC1625A rail circuit is assembled to operate over operating voltage range of the LTC4227: 2.9V to 18V, with a 7.6A maximum current load. The board’s main components include the LTC4227 controller, two power MOSFETs controlled as ideal diodes and one power MOSFET controlled as a Hot Swap device, two jumpers for enabling the second ideal diode and Hot Swap controller, two LEDs to indicate power good and fault conditions, seven banana jacks for connecting power supplies and load, many turrets and pads for observing circuit signals.

• 100ms start-up delay
• Provide automatic retry after a fault