TPS2052BDRG4

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The TPS2052BDRG4 is a member of the Texas Instruments’ Power Distribution Switches, Load Drivers (PMIC) family. It is an integrated low-side power switch device with an internal control circuit designed to meet a wide range of switching applications.

The TPS2052BDRG4 is designed to switch up to 1A of current and provide over-current protection. It features an adjustable operating voltage range from 4.4 V to 26 V and an adjustable operating temperature range of -40C to +125C. The integrated circuit includes a low-side power control switch, a current-sense amplifier, and protection circuitry.

The TPS2052BDRG4 uses voltage-mode switching to control the output power. When the control voltage is below a set threshold, typically 1.2V, the output switch is open and the output voltage is disconnected from the power supply. When the control voltage is above the threshold the output switch is closed and the output voltage is connected to the power supply. The TPS2052BDRG4 can be used in applications where the output voltage source is either greater than the control voltage source or less than the control voltage source.

The integrated current sense amplifier in the TPS2052BDRG4 allows for current-limit protection that is adjustable from 500mV to 1.2V. When the current reaches the limit, the device will open the output switch to reduce the power delivered to the load. This current limit protection helps to avoid overloads and system shutdowns.

The TPS2052BDRG4 also includes over-temperature protection that helps to prevent device overheating by reducing the internal power dissipation when a high temperature is reached. This feature helps to protect and extend the life of the device. The over-temperature protection feature can be adjusted using external components.

The TPS2052BDRG4 is ideal for applications where low-side switching is required and the load currents are usually less than 1A. Examples include the control of DC-DC converters, lightbulbs, LED drivers, fans, or any other heater or cooling element. It is also suitable for point-of-load (POL) and power supply sequencing applications.

In summary, the TPS2052BDRG4 from Texas Instruments is a versatile and compact low-side power switch device with integrated protection features. It is suitable for a wide range of switching applications and features an adjustable operating voltage range, adjustable current sense and over-temperature protection.

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