TL431ACDR2G
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onsemi TL431ACDR2G

Manufacturer No:
TL431ACDR2G
Manufacturer:
onsemi
Package:
Tape & Reel (TR)
Description:
IC VREF SHUNT ADJ 1% 8SOIC
Delivery:
Payment:
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Product Introduction

Overview

The TL431ACDR2G is a programmable precision shunt regulator diode produced by onsemi. This integrated circuit operates as a three-terminal voltage reference, offering a wide range of programmable output voltages from the internal 2.5 V reference up to 36 V using two external resistors. It is designed to replace zener diodes in various applications due to its low temperature coefficient and stable voltage reference capabilities.

Key Specifications

Characteristic Symbol Unit Min Typ Max
Reference Input Voltage Vref V 2.44 2.495 2.55
Cathode to Anode Voltage VKA V - - 37
Cathode Current Range, Continuous IK mA -100 - 150
Reference Input Current Range, Continuous Iref mA -0.05 - 10
Operating Junction Temperature TJ °C - - 150
Dynamic Impedance |ZKA| Ω 0.22 - 0.5
Thermal Resistance, Junction-to-Ambient RθJA °C/W 178 - -

Key Features

  • Programmable Output Voltage to 36 V using two external resistors.
  • Voltage Reference Tolerance: ±0.4% typical at 25°C (TL431B).
  • Low Dynamic Output Impedance: 0.22 Ω typical.
  • Sink Current Capability: 1.0 mA to 100 mA.
  • Equivalent Full-Range Temperature Coefficient: 50 ppm/°C typical.
  • Can be used as either a positive or negative voltage reference.

Applications

  • Digital voltmeters.
  • Power supplies.
  • Op amp circuitry.
  • Replacement for zener diodes in various applications.

Q & A

  1. What is the TL431ACDR2G used for?

    The TL431ACDR2G is used as a programmable precision shunt regulator diode, providing a stable voltage reference in various applications.

  2. What is the range of programmable output voltage for the TL431ACDR2G?

    The TL431ACDR2G can be programmed to output voltages from the internal 2.5 V reference up to 36 V using two external resistors.

  3. What is the typical dynamic impedance of the TL431ACDR2G?

    The typical dynamic impedance of the TL431ACDR2G is 0.22 Ω.

  4. What is the operating current range of the TL431ACDR2G?

    The TL431ACDR2G operates within a current range of 1.0 mA to 100 mA.

  5. What is the maximum cathode to anode voltage for the TL431ACDR2G?

    The maximum cathode to anode voltage (VKA) for the TL431ACDR2G is 37 V.

  6. What is the typical temperature coefficient of the TL431ACDR2G?

    The equivalent full-range temperature coefficient of the TL431ACDR2G is 50 ppm/°C typical.

  7. Can the TL431ACDR2G be used as a negative voltage reference?

    Yes, the TL431ACDR2G can be used as either a positive or negative voltage reference.

  8. What are some common applications of the TL431ACDR2G?

    Common applications include digital voltmeters, power supplies, and op amp circuitry.

  9. What is the maximum operating junction temperature for the TL431ACDR2G?

    The maximum operating junction temperature (TJ) for the TL431ACDR2G is 150°C.

  10. How does the TL431ACDR2G compare to zener diodes?

    The TL431ACDR2G is designed to replace zener diodes in many applications due to its stable voltage reference and low temperature coefficient.

Product Attributes

Reference Type:Shunt
Output Type:Adjustable
Voltage - Output (Min/Fixed):2.495V
Voltage - Output (Max):36 V
Current - Output:100 mA
Tolerance:±1%
Temperature Coefficient:50ppm/°C Typical
Noise - 0.1Hz to 10Hz:- 
Noise - 10Hz to 10kHz:- 
Voltage - Input:- 
Current - Supply:- 
Current - Cathode:1 mA
Operating Temperature:0°C ~ 70°C (TA)
Mounting Type:Surface Mount
Package / Case:8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:8-SOIC
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Similar Products

Part Number TL431ACDR2G TL431AIDR2G TL431ACDMR2G TL431ACDR2
Manufacturer onsemi onsemi onsemi onsemi
Product Status Active Active Obsolete Obsolete
Reference Type Shunt Shunt Shunt Shunt
Output Type Adjustable Adjustable Adjustable Adjustable
Voltage - Output (Min/Fixed) 2.495V 2.495V 2.495V 2.495V
Voltage - Output (Max) 36 V 36 V 36 V 36 V
Current - Output 100 mA 100 mA 100 mA 100 mA
Tolerance ±1% ±1% ±1% ±1%
Temperature Coefficient 50ppm/°C Typical 50ppm/°C Typical 50ppm/°C Typical 50ppm/°C Typical
Noise - 0.1Hz to 10Hz - - - -
Noise - 10Hz to 10kHz - - - -
Voltage - Input - - - -
Current - Supply - - - -
Current - Cathode 1 mA 1 mA 1 mA 1 mA
Operating Temperature 0°C ~ 70°C (TA) -40°C ~ 85°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC 8-SOIC 8-MSOP 8-SOIC

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