LTC4368CMS-2#PBF

LTC4368 is a 100V UV/OV and reverse protection controller with bidirectional circuit breaker. It protects applications from power supply voltages that may be too high, too low, or even negative and from overcurrent faults in both forward and reverse directions. It controls the gate voltage of a pair of external N-channel MOSFETs to ensure that the load is connected to the input supply only when there are no voltage or current faults. Two comparator inputs allow configuration of the overvoltage (OV) and undervoltage (UV) set points using an external resistive divider. A current sense resistor sets the forward and reverse circuit breaker current thresholds. After a forward current fault, the device will either latch off power, or retry after a user adjustable delay. It is used in application such as reverse battery protection, portable instrumentation, automotive and industrial surge protection, energy storage systems etc.

• Wide operating voltage range is 2.5V to 60V
• Overvoltage protection to 100V, reverse supply protection to -40V
• Bidirectional electronic circuit breaker is -3mV reverse
• Adjustable ±1.5% undervoltage and overvoltage thresholds
• Controls back-to-back N-channel MOSFETs, blocks 50Hz and 60Hz AC power
• Hot swappable supply input
• Pin-selectable overcurrent auto-retry timer or latch off
• Low shutdown current is 5µA typical at (SHDN = 0V, SENSE = VOUT = VIN)
• Operating temperature is 0°C to 70°C
• Package style is 10-lead plastic MSOP

Notes

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