Maxim MAX5900AAETT+

Контроллер горячей замены1Автоматический повтор, тайм-аут неисправности, запертая неисправность, тепловой предел, UVLO

Overview

The MAX5900/MAX5901 are SOT23/TDFN 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 -100V and provide the simplest hot-swap solution by eliminating all external components except an external n-channel MOSFET. The MAX5900/MAX5901 limit the inrush current to the load and provide a circuit-breaker function for overcurrent protection. During startup, the circuit-breaker function is disabled and the MAX5900/MAX5901 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 MAX5900/MAX5901 provide overcurrent protection by monitoring the voltage drop across the external MOSFET's on-resistance. The MAX5900/MAX5901 include an undervoltage lockout (UVLO) function, ON/active-low OFF control input, and a powergood status output, active-low PGOOD (MAX5900) or PGOOD (MAX5901). A built-in thermal shutdown feature is also included to protect the external MOSFET in case of overheating. The MAX5900/MAX5901 offer latched or autoretry fault management and are available with 200mV, 300mV, or 400mV circuit-breaker thresholds. Both the MAX5900AAETT and MAX5901 are available in small SOT23 and TDFN packages, and are specified for the extended -40°C to +85°C temperature range. For specific ordering information see the Selector Guide at the end of the data sheet.

Features

Simple Swapper™ Series
Bulk Package
Hot Swap Controller Type
1 Number of Channels
No Internal Switch(s)
Networking Applications
Auto Retry, Fault Timeout, Latched Fault, Thermal Limit, UVLO Features
Auto Retry, Circuit Breaker, Current Limit, Fault Timeout, Latched Fault, Slew Rate, UVLO Programmable Features
500 µA Current - Supply
Surface Mount Mounting Type