MAX5902LCEUT+T

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PMIC - Hot Swap Controllers are used to protect against inrush current when powering up digital circuits, protecting both the power supply and the computer equipment. The MAX5902LCEUT+T is a smart hot-swap MOSFET controller that protects circuitry both on the ground-side and the power-side of the circuit. This dual-protection scheme, in conjunction with the device’s low RDS(on) MOSFET, ensures reliable hot-swapping of loads up to 24V with minimal voltage overshoot.

The MAX5902LCEUT+T features a low operating voltage of just 2.7V to 5.5V as well as a low quiescent current of just 5A, enabling it to provide efficient circuit protection without overloading the power supply. Additionally, the device’s thermal shutdown and overload protection features protect it from the effects of over-temperature and over-current environments. In the event of an overload, the device quickly responds by both disabling the MOSFET and indicating a fault condition, further protecting the system.

The device is capable of operating in both linear and pulse-width modulation (PWM) modes. In linear mode, the device gradually increases the output voltage with a soft-start circuit. In PWM mode, the device continuously regulates the output voltage by pulsing the MOSFET between 0V and 24V. For added protection, the device is equipped with an output voltage monitoring feature that monitors the output voltage of the system and shuts off the MOSFET if the voltage exceeds a pre-set limit.

The device’s low current consumption and low EMI make it useful for a variety of applications such as hot-swapping disk drives, powering up digital circuits, and protecting sensitive instrumentation equipment. Additionally, the device is capable of operating in both linear and PWM modes, making it ideal for applications that require precise voltage regulation.

The MAX5902LCEUT+T provides a reliable hot-swap solution that protects circuitry on the ground-side and the power-side of the board. It is capable of operating in both linear and pulse-width modulation mode, and offers thermal shutdown and overload protection features. With its low current consumption and low EMI, the device is ideal for a variety of applications such as hot-swapping disk drives, powering up digital circuits, and protecting sensitive instrumentation equipment.

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