TL431QDCKT

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	TL431
Supplier Device Package:	SC-70-6
Package / Case:	6-TSSOP, SC-88, SOT-363
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°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:	Tape & Reel (TR)

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PMIC - Voltage Reference

A voltage reference is a reference device that produces a known constant voltage throughout various electrical conditions. It is used in various fractional and industrial control systems, such as instrumentation, motor control circuits and digital logic supply systems, to control or limit the voltages applied to their processes.The TL431QDCKT is a voltage reference integrated circuit (IC) from Texas Instruments (TI). This device is also referred to as a shunt voltage regulator or precision zener diode. The TL431QDCKT provides regulated reference voltages from 2.5V to 36V, that is adjustable over a wide range of temperatures (-40°C to +125°C). The device is well-suited for supply regulation, post-regulation and on-card regulation applications. Application FieldThe TL431QDCKT provides highly accurate reference voltages to support such high-performance applications, such as automotive electronics, military equipment and communication systems. This type of device is suitable for critical applications that require a stable reference voltage over a wide range of operating conditions. The device operates from 3V to 36V input voltage range, and has a very low noise performance. The output voltage range is from 2.5V to 36V. The device is also used in various off-the-shelf power supplies, isolated power systems, distributed power systems and also in higher voltage automotive and commercial applications. In addition, the TL431QDCKT is also suitable for powering high-speed circuits, that require high performance and accuracy. Working PrincipleThe TL431QDCKT is a monolithic integrated circuit designed to provide accurate regulated voltage over a wide range of input and output voltages. The device has an open-loop regulated reference, which is factory calibrated to provide an accurate reference voltage when used with an external resistor divider network. It works by sensing the output voltage of the divider network and uses its internal amplifier to compare it to the reference output voltage. If the reference voltage is greater than the output voltage, the TL431QDCKT will adjust its output voltage to match the reference voltage. The device also has an internal over current protection circuit which will protect the device from damage in cases when the output current goes above the specified maximum (8V to 36V). The device can be enabled/disabled by using a logic-level signal or using an external power source, thus making it suitable for applications where the output voltage needs to be adjusted without having to switch the device on and off.In conclusion, the TL431QDCKT is a monolithic integrated circuit designed to provide a regulated reference voltage over a wide range of temperatures, input, and output voltages. This device can be used in a range of applications in which a stable reference voltage is required, such as automotive electronics, military equipment, and communication systems. The device is also very useful for high-speed circuits, where accuracy and performance are critical.

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