TPS2835PWPR

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Given the many different applications of microcontrollers and motor-control applications, the ability to efficiently drive both the logic and the power stages of the system is becoming increasingly important. Thus, many PMICs (Power Management ICs) are now incorporating some form of FET (Field Effect Transistor) gate driver to support the needs of the system. The TPS2835PWPR is one such device, offering a high-efficiency MOSFET gate-driving circuit capable of both voltage-mode and current-mode operation for a wide variety of digital and motor Control applications.

1. Core Features of the TPS2835PWPR

The TPS2835PWPR is a fully integrated PMIC device with a wide array of features to support digital and motor control applications. Its core features include an integrated high-speed MOSFET gate driver, with both voltage-mode and current-mode operation, an adjustable input voltage regulator, an adjustable output voltage regulator, an adjustable current sense, and programmable feedback gain. The device also features an integrated voltage supervisor, allowing for enhanced protection against overvoltage conditions, as well as an adjustable slew rate control that can be used to reduce the switching losses associated with higher FET turn-on/turn-off rates.

The TPS2835PWPR also comes with a resistor-programmable gain control, allowing users to fine tune the system to match their specific needs. Additionally, the device also supports pre-bias startup and fast-startup operation, making it well-suited for both low voltage and high voltage applications. Finally, the device includes two low-power shutdown modes, allowing for energy savings in battery-powered or fast-startup applications.

2. Application Fields of the TPS2835PWPR

Given its set of features, the TPS2835PWPR is well-suited for a wide variety of applications, ranging from microcontrollers and digital logic to motor control. Specifically, the device is ideal for controlling low-voltage, high-efficiency FETs used in digital logic applications, with its programmable gain control allowing for adjusting the voltage rise time for both low- and high-side FETs separately. The TPS2835PWPR can also be used to power gate drivers used in motor control applications, due to its adjustable current sense allowing for optimization of the control loop. Additionally, the device can be used to add overvoltage protection to circuits by monitoring the input voltage, shutting down the system if it exceeds a programmable limit.

3. Working Principle of the TPS2835PWPR

The TPS2835PWPR uses a combination of Smart Power ICs and advanced IC design principles in order to optimize the power efficiency of digital and motor control applications. Specifically, the device uses a MOSFET-based gate driver, integrated with an adjustable reset for fault protection. This allows the device to drive both low side and high side FETs separately and adjust their voltage rise time independently. The MOSFET gate driver also features programmable current sense, adjustable slew rate control, and pulse-width modulation for adjustable switching frequencies. Additionally, the device features a voltage supervisor, with an adjustable voltage detection level, which allows for overvoltage protection.

To support its wide range of features, the TPS2835PWPR includes an adjustable input voltage regulator, allowing it to control the input voltage to the logic stage, while providing a stable power supply to the output stage. Additionally, the device also includes an adjustable output voltage regulator, which can be used to adjust the output voltage to the motor-control stage in order to maximize efficiency. Finally, the device includes both pre-bias startup and fast-startup operation, allowing it to reach its operating point quickly and efficiently.

Conclusion

The TPS2835PWPR is a feature-packed PMIC device with a wide range of features to support digital logic and motor control applications. Its core features include a MOSFET-based gate driver capable of voltage-mode and current-mode operation, adjustable input voltage regulator, adjustable output voltage regulator, adjustable current sense, programmable feedback gain, and a voltage supervisor with adjustable voltage detection level. The device can also be used to power FET gate drivers used in motor control applications, as well as provide overvoltage protection to digital logic circuits. Additionally, the TPS2835PWPR includes pre-bias startup and fast-startup operation, allowing it to quickly reach its operating point and provide efficient power management to the system.

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