Maxim Integrated MAX5903
The MAX5902/MAX5903 are hot-swap controllers that allow a circuit card to be safely hot plugged into a live backplane without causing a glitch on the power-supply rail. These devices operate from +9V to +72V and provide the simplest hot-swap solution by eliminating all external components except the external p-channel MOSFET. The MAX5902/MAX5903 limit the inrush current to the load and provide a circuit-breaker function for overcurrent protection.| Part No. | MAX5903 |
|---|---|
| Datasheet | MAX5903 Download |
| Manufacturer |  Maxim Integrated |
| Description | +72V SOT23 Simple Swapper Hot-Swap Controllers |
| Buy | Stock & Price |
GENERAL DESCRIPTION
During startup the circuit-breaker function is disabled and the MAX5902/MAX5903 limit the inrush current by gradually turning on the external MOSFET. Once the external MOSFET is fully enhanced, the circuit-breaker function is enabled and the MAX5902/MAX5903 provide overcurrent protection by monitoring the voltage drop across the external MOSFET’s on-resistance. The MAX5902/MAX5903 include an undervoltage lockout (UVLO) function,
