LTC4226IUD-1#PBF

LTC4226 is a dual hot swap™ controller allows two power paths to be safely inserted and removed from a live backplane or powered connector. Three selectable ratios of current limit to circuit breaker threshold accommodate noisy loads and momentary high peak currents without interruption, while a dual-rate fault timer protects the MOSFET from extended output overcurrent events. FAULT outputs indicate the circuit breaker status. This device can also be configured as a bidirectional current limiter/circuit breaker. For high current applications, two channels may be configured as parallel power paths. It is widely used in application such as apple firewire/IEEE 1394, disk drives, rugged 12V, 24V applications, hot board/connector insertion, uni/bidirectional current limiter/circuit breaker etc.

• Wide operating voltage range is 4.5V to 44V
• Optional auto-retry or latch off after overcurrent fault
• High side drive for external N-channel MOSFET
• Allows parallel power paths for High current applications
• Fast response limits peak fault current
• Auto-retry delay is 0.5s
• Operating temperature is -40°C to 85°C
• Packaging style is 16-lead plastic QFN

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