TL431A Programmable Shunt Regulator TL431A Programmable Shunt Regulator

QC0758

145 In stock

Rs. 6.00
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Rs. 6.00
(inc. GST)
[Delivery: 2 to 5 days]            

The TL431 is a three-terminal adjustable shunt regulator that is widely used in Electronics. As this is a three terminal device and looks exactly like a transistor, it also requires less PCB space. It has three pins, Anode, Cathode and Reference pin. For accurate shunt stability the current into the cathode pin must remain >1mA. The Reference pin or Adjust pin is used to set the reference voltage using voltage dividers. 

Advantages of TL431 over the Zener diode is that the output voltage can be set to any value between its reference voltage (approximately 2.5 V) to maximum of 36 V and requires only two external resistors. Active output circuitry is another advantage that provides a very sharp turn-on characteristic where the Zener diodes fail in many applications, for example - onboard regulation, adjustable power supplies, and switching power supplies. 

In a nutshell, TL431  can be used  as a single voltage reference, error amplifier, voltage clamper comparator with integrated reference.

 

TL431 pinout:

TL431A Programmable Shunt Regulator

Package Contains

1x TL431A Programmable Shunt Regulator 

 

TL431 Specifications:

  • Adjustable output voltage VREF (2.5V) - 36V
  • Operation From −40°C to 125°C
  • 0.2-Ω Typical Output Impedance
  • Sink-CurrentCapability:1 mA to 100 mA

TL431 Applications:

  • Zener DIODE Replacement
  • Adjustable Voltage and Current Referencing
  • Secondary Side Regulation in Fly-back SMPS
  • Voltage Monitoring
  • Comparator
  • As a reference voltage generator

TL431 Dimension and footprint:

TL431A Programmable Shunt Regulator

Example Projects on TL431:

100mA Constant Current Generator

Additional Resources:

TL431 Datasheet

The TL431 is a three-terminal adjustable shunt regulator that is widely used in Electronics. As this is a three terminal device and looks exactly like a transistor, it also requires less PCB space. It has three pins, Anode, Cathode and Reference pin. For accurate shunt stability the current into the cathode pin must remain >1mA. The Reference pin or Adjust pin is used to set the reference voltage using voltage dividers. 

Advantages of TL431 over the Zener diode is that the output voltage can be set to any value between its reference voltage (approximately 2.5 V) to maximum of 36 V and requires only two external resistors. Active output circuitry is another advantage that provides a very sharp turn-on characteristic where the Zener diodes fail in many applications, for example - onboard regulation, adjustable power supplies, and switching power supplies. 

In a nutshell, TL431  can be used  as a single voltage reference, error amplifier, voltage clamper comparator with integrated reference.

 

TL431 pinout:

TL431A Programmable Shunt Regulator

Package Contains

1x TL431A Programmable Shunt Regulator 

 

TL431 Specifications:

  • Adjustable output voltage VREF (2.5V) - 36V
  • Operation From −40°C to 125°C
  • 0.2-Ω Typical Output Impedance
  • Sink-CurrentCapability:1 mA to 100 mA

TL431 Applications:

  • Zener DIODE Replacement
  • Adjustable Voltage and Current Referencing
  • Secondary Side Regulation in Fly-back SMPS
  • Voltage Monitoring
  • Comparator
  • As a reference voltage generator

TL431 Dimension and footprint:

TL431A Programmable Shunt Regulator

Example Projects on TL431:

100mA Constant Current Generator

Additional Resources:

TL431 Datasheet

Returns Policy

Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.

1. Manufacturing Defect
If you receive a product with a manufacturing defect, please notify us within the 3 days of you receive the product, supported by the proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost.

2. Wrong Item Shipped

If you receive a different product then the ordered one, please contact us within the 3 days of you receive the product, supported by the proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost.

Limitation of Returns
We don't accept the returns for the products damanged by improper use of the product. Moreover we don't accept the return, if the ordered product is not fit for any specific application. Please read the product specifications and datasheet before selecting and ordering a product.

Shipping

We ship to all over India with flat shipping rate of INR 45 for all the orders below INR 599. For all the orders above INR 599, we offer a free shipping. Please contact to our support team at support@quartzcomponents.com for any question related to shipping.

Returns Policy

Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.

1. Manufacturing Defect
If you receive a product with a manufacturing defect, please notify us within the 3 days of you receive the product, supported by the proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost.

2. Wrong Item Shipped

If you receive a different product then the ordered one, please contact us within the 3 days of you receive the product, supported by the proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost.

Limitation of Returns
We don't accept the returns for the products damanged by improper use of the product. Moreover we don't accept the return, if the ordered product is not fit for any specific application. Please read the product specifications and datasheet before selecting and ordering a product.

Shipping

We ship to all over India with flat shipping rate of INR 45 for all the orders below INR 599. For all the orders above INR 599, we offer a free shipping. Please contact to our support team at support@quartzcomponents.com for any question related to shipping.

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