TPS259571DSGT

Power Management Integrated Circuit (PMIC) Hot Swap Controllers are designed to provide circuit protection for system loads or power supplies, enabling safe powering on or off of components or circuits in a system. The TPS259571DSGT is an advanced Hot Swap Controllers from Texas Instruments. It provides thermal, over-current and over-voltage protection. This controller is suitable for high current Hot Swap applications with input voltages ranging up to 12V, thus provides a reliable solution for designs in server, enterprise storage, communications and test and measurement systems.

Working Principle

TPS259571DSGT consists of two blocks, namely the Gate Driver and the Control Circuit. The Gate Driver block drives an external N-channel-MOSFET (NMOS) based on the input voltage and provides quick ON/OFF response time.

The Control Circuit is used for monitoring the system’s input voltage and evaluating the current treatment. It stops or allows the Gate Driver to drive the NMOS based on the detected voltages. The Control Circuit is powered by an external supervisory circuit (VS for bias) which is used for maintaining a low-power state when the output is shut down. It also implements a hiccup mode for current-limiting to protect the system from sudden or transient current loads.

Application Field

TPS259571DSGT is used to provide over-voltage, under-voltage and over-temperature protection to high-current Hot Swap applications. It can be used as a primary power supply controller for any 12V Hot Swap application including communications and digital systems. It is also frequently used in enterprise storage and server systems to protect the valuable system components from the power supply.

Additionally, the TPS259571DSGT is suitable for any Hot Swap system with a 12V power supply, no matter if the Hot Swap occurs in a single system or multiple systems. Since it provides protection against unexpected current loads, the TPS259571DSGT is also used for protecting delicate test and measurement systems.

To conclude, the TPS259571DSGT is an advanced Hot Swap Controllers from Texas Instruments that provides protection against over-voltage, under-voltage and over-temperature, making it suitable for a wide variety of Hot Swap applications in server, enterprise storage, communications and test and measurement systems.