DC536A-B

DC536A-B demonstration circuit is a hot swap controller with multifunction current control featuring the LTC4211. The DC536 is configured to operate with up to 7A as populated by the factory. Optional component pads are provided for a higher power pass FET and sense resistor for operation up to 20A. The LTC4211 is a low voltage hot swap controller that has a 2.5V to 16.5V operating range and a 17V absolute maximum operating voltage for the Vcc pin. This demo circuit is populated for +5V operation, but it can easily be re-adjusted for any voltage between 2.5V to 16.5V by replacing R3 and R1. There are two assembly options for load current. The DC536 as supplied by the factory is populated with a Si4410 MOSFET in an SO-8 package and a 7mΩ current sense resistor providing a minimum 5A load current. The DC536 has provision for an FDB8030L MOSFET in the DD package which when used with a 2.5mΩ sense resistor provides a minimum16A load current.

• Evaluates LTC4211 during turn-on and turn-off transients as well as during steady state conditions