TPS2047BDR

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Power distribution switches, load drivers, and other power management units are important components in electronic systems. The TPS2047BDR is a member of the TI\'s low-dropout PMIC (power management IC) family, suitable for a wide variety of applications.This article discusses TPS2047BDR applications and its working principle.

Overview

The TPS2047BDR is a low-dropout power management IC that manages up to two loads simultaneously. It provides two output channels, each with a variable voltage and current limit. The variable voltage limits the power supply range from 0.8V to 4.2V, allowing it to be used in a variety of low-voltage applications. The output current limit can be set from 0.2A to 5A, making it suitable for a variety of applications such as embedded systems, sensing, and battery powered devices. The device features integrated current limit, thermal protection, and over-voltage protection.

Applications

The TPS2047BDR is designed for a variety of applications in electronic systems. It is suitable for powering or controlling loads in embedded systems, such as Intel Atom processors and microcontrollers, as well as handheld devices and consumer electronics. It can also be used to provide power to a wide range of peripherals, from LEDs and relays to sensors, microphones, and LCDs. The TPS2047BDR is also well suited for charging applications, such as USB charging and battery charging.

Features

The TPS2047BDR has several features that make it suitable for a wide range of applications. It supports wide voltage range operation from 0.8V to 4.2V, and adjustable output current limits from 0.2A to 5A. It also has integrated thermal protection and over-voltage protection, making it suitable for industrial applications. The device is also designed with small size and low operating current, making it suitable for battery-powered applications.

Working Principle

The TPS2047BDR works by disconnecting the load from the power source when the current limit is exceeded. The current limit is adjustable for each output channel, and is set by two pins on the device. These pins also control an internal reference voltage that sets the voltage limit for the output channels. The output channels are then monitored and disconnected when the current limit is exceeded.

The TPS2047BDR also features integrated thermal protection and over-voltage protection. Thermal protection prevents the device from overheating, by disconnecting the load from the power source when the device temperature exceeds the specified limit. The over-voltage protection also works by disconnecting the load from the power source when the output voltage exceeds the set limit.

Conclusion

The TPS2047BDR is a low-dropout power management IC that is suitable for a variety of applications in embedded systems, handheld devices, and consumer electronics. It can manage up to two loads simultaneously with adjustable voltage and current limits, and is designed with integrated thermal and over-voltage protection. The device is also designed with small size and low power consumption, making it suitable for battery-powered applications.

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