TL431CDE4

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	TL431
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Current - Cathode:	1mA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	--
Series:	--
Temperature Coefficient:	--
Tolerance:	±2.2%
Current - Output:	100mA
Voltage - Output (Max):	36V
Voltage - Output (Min/Fixed):	2.495V
Output Type:	Adjustable
Reference Type:	Shunt
Part Status:	Active
Packaging:	Tube

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TL431CDE4 application field and working principle

The TL431CDE4 is a three-terminal programmable shunt regulator and is widely used in the PMIC (Power Management Integrated Circuit) field. It’s actually a voltage reference IC that includes a two-terminal reference and a three-terminal regulator. This type of device works mainly by controlling the reference’s output voltage with respect to its two-terminal input voltage.The TL431CDE4 variable voltage regulator can be used to dissipate a wide range of voltages in order to set the output voltage. It has very low dropout and only consumes very low power, which makes it energy efficient. It features a wide-range adjustable output voltage, up to 36V at a current up to 500mA. It can also be used for precision and high-accuracy voltage regulation.The most common application for this device is for voltage reference applications, where it plays a key role in providing an accurate voltage reference for the whole system, such as in power supplies. It’s also useful for compensating other linear and switching regulators, ensuring lower system power losses and better efficiency. In addition, it can be used for thermal protection, setting over-voltage protection and other applications. In terms of working principle, when TL431CDE4 is connected to a circuit, the two-terminal adjustment voltage is set, and then the output voltage will be maintained at a certain value relative to the adjustment voltage. The device works by controlling the reference\'s output voltage with respect to its two-terminal input voltage. The output voltage of the TL431CDE4 can changes this way: when the adjustment voltage is changed, the output voltage will follow accordingly. This enables accurate and tight control of the output voltage regardless of temperature, current and other factors. For better accuracy, the device also comes with a temperature compensation pin, which can be used to compensate for temperature changes, providing more accuracy and stability for the output voltage.Overall, the TL431CDE4 is an ideal device for voltage reference applications, offering excellent accuracy and low power consumption. It can be used in a wide range of PMIC applications, providing accurate and reliable performance.

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