TPS3125L30DBVT

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The TPS3125L30DBVT is a Supervisor that is part of Texas Instruments\' range of supervisors in its Power Management Integrated Circuit (PMIC) product offering. This device acts as a circuit protection device to prevent overvoltage or inrush current leakages in critical parts of the circuit while ensuring reliable usage in a range of power applications, including automotive, industrial and consumer.

The TPS3125L30DBVT is a two-port power supervisor, with an input pin and an output pin, making it suitable for use in AC-DC and DC-DC solutions. It provides a time-based overvoltage (OV) protection along with an undervoltage (UV) protection, enabling it to monitor and protect the operation of a system\'s power supply.

In terms of its specific application fields, the TPS3125L30DBVT Supervisor is suitable for a variety of applications, including: (1) Automotive applications, such as systems protection from overvoltage and overcurrent in power distribution systems and throttle controls; (2) Industrial applications, such as overvoltage protection in motor drives and power supply rail protection; and (3) Consumer applications, such as sound systems, TVs, and other consumer-level electronics which need the added voltage protection.

The working principle of the TPS3125L30DBVT Supervisor is relatively straightforward. The supervisor\'s input pin matches the input voltage in the circuit, while its output pin provides the monitored voltage to the application circuit. During normal operation, both the input pin and output pin remain at the same voltage. If, however, the input voltage exceeds the supervisor\'s overvoltage protection threshold, the output pin is disconnected from the input voltage and an overvoltage condition is triggered. On the other hand, undervoltage conditions cause the output pin to be held low until the input voltage reaches its preset value. This ensures reliable circuit protection for various types of applications.

In addition, the TPS3125L30DBVT Supervisor provides a wide input range from 2.7V to 20V and is compatible with various voltage supplies, including 3V, 5V, and 12V. It is available in a surface mount Small-Outline Integrated Circuit package and has a high accuracy of +/-1%, as well as a low quiescent current of 80µA.

Overall, the TPS3125L30DBVT Supervisor provides reliable circuit protection with its overvoltage and undervoltage protection, making it suitable for use in a variety of applications and power configurations. Its wide input range and high accuracy make it an attractive option for protecting critical parts of a circuit, while its low quiescent current ensures efficient use of power in any system.

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