TPIC9201PWPR

TPIC9201PWPR Application Field and Working Principle

Introduction

The TPIC9201PWPR is a monolithic integrated circuit designed and manufactured by Texas Instruments. It is part of the company’s family of Power Management and Control ICs. It belongs to the product category of PMIC power distribution switches, load drivers. Described as a high accuracy, low current consumption and space efficient power switching and precision current sensing device, the TPIC9201PWPR is specifically designed for use in a variety of industrial and automotive applications.

Applications

The TPIC9201PWPR, as part of the power management solution, can be used to control a wide range of power management related applications. These include but are not limited to, automotive infotainment and on-board systems, alarm and security systems, medical instrumentation and monitoring equipment, general industrial power distribution and control systems. Additionally, the TPIC9201PWPR can also be used to meet the requirements of a variety of industrial power supply designs, like those used in home appliances and other low-power, AC/DC converting components.

The TPIC9201PWPR is also suitable for a range of other system functions and features, including adaptive charging capabilities, EMI filtering, hot-swapping, power sequencing, and power-over-Ethernet switching. The integrated low-power feature of the TPIC9201PWPR, combined with its high accuracy and low-noise operation, means that it is well suited to applications requiring a fast and reliable power switch.

Working Principle

The TPIC9201PWPR is designed with a high accuracy, low current consumption and space efficient architecture, enabling it to achieve ultra-high accuracy and performance. The integrated switching device consists of a precision low-current sense amplifier, a shunt resistor and a high-efficiency switch. The device is designed with multiple channels, allowing it to be used in multiple-output power supply systems.

The device works by the sense amplifier continuously measuring the voltage across the shunt resistor. The sensed voltage is then compared with a reference voltage set by the control logic, and when the sensed voltage reaches the reference voltage, the control logic will activate the switch and hence the power supply. The switch then operates according to power sequencing and corresponding control instructions, allowing multiple power supplies to be switched on and off in sequence for better power control and protection.

The TPIC9201PWPR also features thermal protection, ensuring that no output current is drawn if an over-temperature condition is detected. The built-in short circuit and overload protection help to minimize system failures and prevent damage to the application.

Conclusion

The TPIC9201PWPR is an advanced and reliable power distribution switch, load driver and precision current sensing device. It is specially designed to meet the needs of a variety of industrial and automotive applications, including automotive infotainment, medical instrumentation and general industrial power supply design. The TPIC9201PWPR also offers protection mechanisms against short circuits, overloads and over-temperatures, making it a reliable and efficient solution for power management systems.