TL783CKTER

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The TL783CKTER is a three-terminal adjustable positive voltage regulator that uses a constant kA/W temperature coefficient temperature sensing technique to provide temperature compensation and voltage regulation. It is part of the PMIC (Power Management Integrated Circuit), Voltage Regulators and Linear sections.

The TL783CKTER is designed to provide a regulated output voltage with a wide input voltage range and is capable of supplying up to 1.5 and 2.5A of output current depending on the input and output voltage. The regulator has an adjustable output voltage from 2.85V to 33.3V and is capable of maintaining regulation of a regulated output voltage within ±2.5% of its set voltage.

The TL783CKTER allows for the user to adjust the output voltage with a wide adjustment range that covers the entire output voltage range. It also has a Thermal Shut Down, Overvoltage Protection (OVP) and Over Current Protection (OCP) features. It is specified to operate over a wide temperature range (-40°C to +125°C) and is offered in a 6-pin TSOT (Thin Small Outline Transistor) package.

The TL783CKTER is an ideal choice for applications requiring temperature range, accuracy, reliability and stability. It is used in many applications including battery management systems, industrial control systems, computing systems, medical equipment, communications systems and automotive systems.

In terms of working principle, the TL783CKTER is a conventional three-terminal adjustable series regulator. It uses a temperature- compensated Reference and error amplifier (A1) to keep the output voltage setpoint within a very tight regulation. The error amplifier sets the voltage at the adjust pin (A) to a voltage that is approximately 1.25V less than the desired output voltage.

This signal is then fed to a pass transistor (Q1) maintained at the same voltage level by an N-channel MOSFET (Q2). The pass transistor is biased around the same voltage level as the error amplifier such that no current is limited and safe operating area is maintained. Once the output voltage reaches the desired voltage level, any further change in the output voltage is fed back to the adjust pin, producing a corresponding change in the bias of the pass transistor Q1 and maintaining the desired output voltage.

The TL783CKTER provides short circuit protection whenever the output current exceeds 1.5A or 2.5A (depending on the input and output voltage). In this case, the pass transistor Q1 is shut off and the output voltage drops to zero. A current limit is established by a resistor connected to the output of the error amplifier. This protection feature stays active until the current drops to normal operating conditions.

The TL783CKTER also features output voltage sequencing, enabling the power supply system to sequence the application\'s power-up and power-down operations. Sequencing simply means that the output voltage of the TL783CKTER can be adjusted (turned on and off) in a particular order. This way, the output voltages of multiple power supplies can be controlled in a predefined sequence so that the system is powered on in the correct order and powered off in the correct order. This feature also helps to reduce power supply-generated noise as well as protect system components from unnecessary inrush current and voltage spikes.

The TL783CKTER is a three-terminal adjustable positive voltage regulator that provides excellent stability and performance for a variety of applications. It is an ideal choice for many temperature range, accuracy and reliability applications and includes features such as overvoltage protection, over current protection and output voltage sequencing. With its wide input voltage range, adjustable output voltage and wide temperature range, it is a reliable and cost effective solution for many applications.

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