DC1594A-A

DC1594A-A demonstration circuit is a +5V rail with hot swap functionality featuring the LTC4219 - 5A Integrated Hot Swap Controller. The DC1594A allows evaluating performance of the LTC4219 in the transient conditions, such as turning on and off the power rail, in steady state conditions with different load and in fault conditions, when Controller interrupts its functions from overcurrent, non-proprietary voltage level, or thermal condition. The LTC4219 features 5% accuracy in 5.4A current limit and has a current limiting foldback characteristic. Current limit can be reduced by placing the external resistor between Iset and GND pins, and it can be adjusted dynamically during transient. The Controller monitors a load current generating ground reference signal proportional to the sense resistor voltage. Thermal limit and power good signaling increase Controller reliability and options in application.

• Input supply range from 2.9V to 15V
• Input supply undervoltage lockout of 2.73V
• Output power good threshold of 4.35V