TLV431BE5TA

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TLV431BE5TA is a low power shunt regulator integrated circuit that serves as precision voltage reference. An integrated voltage reference on a single chip provides accuracy and improved performance compared to discrete and mechanical references. The device can be used in applications that require an accurate, low cost, low-power reference voltages. It is part of the PMIC - Voltage Reference family.

The TLV431BE5TA is a three-terminal adjustable shunt regulator that can adjust the output voltage from 1.24V to 5.5V with a 1% initial accuracy and 0.2% temperature and line stability. The device uses an external resistor to set the voltage and has a minimum operating current of 0.13mA. It consumes only 70uA in active mode, making it well-suited for battery operated systems such as cellphones and tablets.

The TLV431BE5TA can be used for various applications such as reference for ASICs, A/D converters, D/A converters, voltage regulators and other circuits with reference requirements. The device can also be used to monitor the power supply line voltages in portable systems and in automotive applications.

The working principle of the TLV431BE5TA is pretty straightforward. The device features a high impedance internal Zener diode reference voltage that is connected to a control circuit. This control circuit monitors the external voltage at the device’s reference terminals and adjusts the internal reference voltage to match it. The output voltage is then regulated to the desired reference voltage using an external feedback resistor.

The device also features low temperature coefficient and a wide operating temperature range. It can operate from -40 to 85°C and has a temperature coefficient of 0.05%. It is also designed to withstand high voltage transients up to 45V.

Overall, the TLV431BE5TA is a great choice for low-power and low-cost voltage reference applications that require precision accuracy, wide temperature range, low power consumption and transient protection. The device is suitable for a wide range of industrial, automotive and consumer applications.

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