TPS259531DSGT

Hot swap controllers are a type of power management integrated circuits (PMICs) used to implement reliable control over power delivery and distribution. The TPS259531DSGT is a hot swap controller from Texas Instruments that brings hot swap and system performance to applications including medical systems, industrial automation, and server architectures. Hot swap controllers provide the necessary protection circuit functionality for complex, large power architectures such as system power managed systems. The TPS259531DSGT literally bridging this complexity gap that exists in hot-swappable designs.

Features and Benefits

The TPS259531DSGT provides a high level of integration and performance. This hot swap controller integrates an advanced field-effect transistor (FET) driver to help reduce component count and board space. The low on-resistance drive is matched with an ideal diode implementing an extra driver which helps to minimize loop inductance and reduce trace resistance and capacitance. This reduces cost, power levels and thermal dissipation.

The device also includes an embedded PMBus read/write transport allowing for communication with other devices. This enables a system monitor to be connected to a smart watchdog timer, as well as being able to monitor and log temperatures, voltages, and power levels. Single power cycle and inrush current limit protections are also included.

Application Field and Working Principle

The TPS259531DSGT hot swap controllers are designed to enable seamless integration of non-intrusive hot swappable links into system designs. This hot swap controller is typically used in the implementation of hot-swap architectures, such as mid-to-high power industrial automation systems, medical systems, server architectures, storage systems, virtualization systems, and rack mount systems.

The basic principle underlying the working of the TPS259531DSGT is bridge connection of two power domains. The hot swap controller works by connecting the two power domains via an N-channel MOSFET, which is controlled by the device\'s logic, allowing for interruption-free power delivery and low-interference distribution. By doing so, the device helps to protect sensitive components and reduce the thermal stress on connected devices.

The TPS259531DSGT provides full protection, ensuring power safety and protection from inrush currents and over-temperature or over-current events. In addition, the device has a configurable I/O trip current level and a configurable internal timer that allows accurate processing of each cycle and protection against hot swap transients.

Conclusion

The TPS259531DSGT hot swap controller is an ideal solution for the implementation of complex and robust power delivery and distribution systems. Its features and benefits make it a powerful and reliable solution for many types of applications, such as industrial automation, medical systems, and server architectures. The device offers advanced FET driver, PMBus transport, and single-power-cycle protection against inrush currents and over-temperature or over-current events.