Maxim’s MAX5970 dual hot-swap controller provides complete protection for systems with two supply voltages from 0 V to +16 V. It includes four programmable LED outputs and the hot-swap channels can be configured to operate as independent controllers or as a pair operating together so that both channels shut down if either channel experiences a fault. The MAX5970 provides two programmable levels of over-current circuit-breaker protection: a fast-trip threshold for a fast turn-off, and a lower slow-trip threshold for a delayed turn-off. The device monitors voltage and current with an internal 10-bit ADC which is continuously multiplexed to convert the output voltage and current of both hot-swap channels at 10 KSps. Each 10-bit sample is stored in an internal circular buffer so that 50 past samples of each signal can be read back through the I²C interface at any time or after a fault condition.
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