DC2027A-A

DC2027A-A demonstration circuit showcases the LTC®4364 surge stopper with ideal diode in a 12V, 1A application. DC inputs of up to 80V and transients to 250V are limited to just 28.7V at the output. Sagging and reverse-polarity inputs of up to -24V are isolated from the output by a reverse-blocking MOSFET configured as an ideal diode. Further, the output is protected against backfeeding. The output may be driven -20V to +30V without circuit damage or back feeding into the input. A 4.7μF timer capacitor and robust forward MOSFET permit the load to operate through ISO-7637-2 load dump waveform 5A. Sustained overvoltage or overcurrent conditions cause the LTC4364 to turn off after a timer delay. The LTC4364-1 (DC2027A-A) latches off and is reset by pulling (active low)SHDN low for at least 100μs.

Note

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party