TPS2393PWR

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TPS2393PWR Application Field and Working Principle

The TPS2393PWR is a PMIC series of Hot Swap controllers with power management, designed by Texas Instruments (TI). It is an integrated solution specifically intended for high power, high side paralleled hot swap applications and allows designers to implement a robust power system with the lowest total cost and best overall performance.

Features and Applications

The TPS2393PWR series is based on TI\'s low power, low noise, low profile BiCMOS process and provides designers with:

• Extremely low power consumption
• High immunity to power transients
• Improved amplifier stability
• High frequency synchronous rectifier
• Optimized current sense operation with temperature compensation
• Thermistor support

The TPS2393PWR series has a wide array of features, making it well-suited to applications in both commercial and industrial settings, including:

• Home automation and industrial control systems
• Lighting systems and fixtures
• Security and surveillance systems
• Portable power applications such as battery-powered devices
• Computer systems and computer peripherals
• Large scale LED lighting installations
• Automotive, space and avionics

Working Principle

The TPS2393PWR is a hot swap controller, meaning it provides active management of hot-plugging operations. When power is applied to the system, the TPS2393PWR regulates its output voltage for optimal system performance. The TPS2393PWR\'s power control is based on an interactive control system that continually monitors the input and output voltages.

At its core, the TPS2393PWR operates on a hysteretic-band feedback control scheme. This scheme entails setting the input current limit to the maximum allowable power, then limiting the input current by continuously monitoring the output voltage. If the output voltage drops below a predetermined threshold, the controller will decrease the input current limit and disable the power switch.

The TPS2393PWR also features thermal protection, which is designed to protect the system from temperature extremes. The thermal protection monitors the die temperature and will shut down the device if an over-temperature condition is detected. The TPS2393PWR also includes an overvoltage protection and a reverse current protection. The overvoltage protection will shut down the device if the output voltage exceeds a predetermined threshold and the reverse current protection prevents the discharge of output current into the input.

Conclusion

The TPS2393PWR series of Hot Swap controllers from TI is an excellent choice for PMIC applications that require high power, low noise and low profile requirements. Its hysteretic-band feedback control scheme ensures optimal system performance and its various safety features, such as thermal protection and overvoltage protection, provide added protection to the system. Moreover, the TPS2393PWR is well-suited to a wide range of commercial, industrial and automotive applications.

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