TPS2081D

Voltage - Supply (Vcc/Vdd):	Not Required
Base Part Number:	TPS2081
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	0°C ~ 125°C (TJ)
Fault Protection:	Current Limiting (Fixed), Over Temperature, UVLO
Features:	Status Flag
Input Type:	Non-Inverting
Rds On (Typ):	80 mOhm
Current - Output (Max):	500mA
Series:	--
Voltage - Load:	2.7 V ~ 5.5 V
Interface:	On/Off
Output Type:	N-Channel
Output Configuration:	High Side
Ratio - Input:Output:	1:1
Number of Outputs:	2
Switch Type:	General Purpose
Part Status:	Active
Packaging:	Tube

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TPS2081D Application Field and Working Principle

TPS2081D can be classified as a Power Management Integrated circuit (PMIC) - Power Distribution Switches, Load Drivers. It is a single-channel power switch intended to provide power to loads in a microcontroller- or system-based application. The principle purpose of the TPS2081D is to provide a central point of control to distribute power to loads with a minimum of external components.The TPS2081D is designed to be simple and efficient. It has an input voltage of up to 38 V and can switch current up to 500mA. The device also has its own thermal protection and soft-start features, making it easy to use and relatively foolproof. It features an active low open drain enable input for switching high voltage loads.In a typical application, the TPS2081D would be used to drive high current LEDs, an LCD backlight, or other analog or digital loads. The device can also be used to switch power between two different power rails, providing sufficient duty cycle for proper current limiting and over-voltage protection.Aside from switching power, the TPS2081D can also be used for failure detection. When the enable pin is low, the device will shut off the power rail, thus protecting the microcontroller or system from being damaged due to overcurrent. The device can also be used to detect an invalid voltage on the power supply, and it can then be programmed to auto-reset or shut down when an invalid voltage is detected.In terms of working principle, the TPS2081D is designed to be straightforward. When the enable pin is low, the internal MOSFET is disabled, which shuts off power to the load. When the enable pin is active, the internal MOSFET will turn on, allowing power to be supplied to the load.In addition to this, the TPS2081D also has an internal voltage regulator that regulates the voltage level at the load. It features a low dropout voltage, so the load does not need to be connected directly to the input rail. This further simplifies usage, as no additional level-shifting circuitry is needed.The TPS2081D is an ideal solution for a wide range of power switching and load-driving applications. Its features make it simple to use and its low dropout voltage regulator ensures reliable power delivery without the need for additional level-shifting circuitry. The device is highly efficient and its thermal protection and soft-start features ensure that it can be put to reliable use in a range of devices.

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