TL431ACP
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Texas Instruments TL431ACP

Manufacturer No:
TL431ACP
Manufacturer:
Texas Instruments
Package:
Tube
Description:
IC VREF SHUNT ADJ 1% 8DIP
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Product Introduction

Overview

The TL431ACP is a precision programmable reference voltage source produced by Texas Instruments. It is part of the TL431 and TL432 series, which are three-terminal adjustable shunt regulators known for their thermal stability and versatility across various applications.

This device is widely used in electronic circuits that require a stable and adjustable reference voltage. The TL431ACP is particularly noted for its high accuracy, low output noise, and wide operating temperature range, making it suitable for a broad range of industrial, automotive, and commercial applications.

Key Specifications

Characteristic Symbol Unit Min Typ Max
Reference Voltage Tolerance at 25°C Vref V 2.44 2.495 2.55
Adjustable Output Voltage Vout V - - 36
Operating Junction Temperature Range TJ °C -40 - 125
Cathode to Anode Voltage VKA V - - 37
Continuous Cathode Current Range IK mA -100 - 150
Reference Input Current Range Iref mA -0.05 - 10
Typical Output Impedance ZKA Ω - 0.2 -
Thermal Resistance, Junction-to-Ambient RJA °C/W - 114 -

Key Features

  • Precision Reference Voltage: The TL431ACP offers a precise reference voltage with tolerances of ±1% at 25°C, ensuring high accuracy in voltage regulation.
  • Adjustable Output Voltage: The output voltage can be adjusted from Vref to 36 V, providing flexibility in various applications.
  • Wide Operating Temperature Range: The device operates from -40°C to 125°C, making it suitable for harsh environmental conditions.
  • Low Output Noise: The TL431ACP has low output noise, which is crucial for applications requiring stable voltage references.
  • High Sink-Current Capability: It can sink currents from 1 mA to 100 mA, supporting a wide range of load conditions.
  • Low Output Impedance: The typical output impedance is 0.2 Ω, ensuring minimal voltage drop under load conditions.

Applications

  • Rack Server Power: Used in power supply units for rack servers to provide stable reference voltages.
  • Industrial AC/DC and AC Inverter & VF Drives: Employed in industrial power conversion systems for precise voltage regulation.
  • Servo Drive Control Modules: Utilized in servo drive systems to ensure accurate and stable voltage references.
  • Notebook PC Power Adapters: Used in the design of power adapters for notebooks to maintain stable output voltages.
  • Automotive Systems: Applied in various automotive electronic systems requiring reliable and precise voltage references.

Q & A

  1. What is the TL431ACP?

    The TL431ACP is a precision programmable reference voltage source produced by Texas Instruments.

  2. What is the reference voltage tolerance of the TL431ACP at 25°C?

    The reference voltage tolerance is ±1% at 25°C.

  3. What is the adjustable output voltage range of the TL431ACP?

    The output voltage can be adjusted from Vref to 36 V.

  4. What is the operating temperature range of the TL431ACP?

    The device operates from -40°C to 125°C.

  5. What is the typical output impedance of the TL431ACP?

    The typical output impedance is 0.2 Ω.

  6. What are some common applications of the TL431ACP?

    Common applications include rack server power, industrial AC/DC and AC inverter & VF drives, servo drive control modules, notebook PC power adapters, and automotive systems.

  7. What is the maximum cathode to anode voltage for the TL431ACP?

    The maximum cathode to anode voltage is 37 V.

  8. What is the continuous cathode current range for the TL431ACP?

    The continuous cathode current range is from -100 mA to 150 mA.

  9. How does the TL431ACP ensure thermal stability?

    The device is designed with specified thermal stability over applicable automotive, commercial, and industrial temperature ranges.

  10. What package types are available for the TL431ACP?

    The TL431ACP is available in various packages including DIP8, SOIC, and others as specified in the datasheet.

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:- 
Noise - 0.1Hz to 10Hz:- 
Noise - 10Hz to 10kHz:- 
Voltage - Input:- 
Current - Supply:- 
Current - Cathode:600 µA
Operating Temperature:0°C ~ 70°C (TA)
Mounting Type:Through Hole
Package / Case:8-DIP (0.300", 7.62mm)
Supplier Device Package:8-PDIP
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Similar Products

Part Number TL431ACP TL431AIP TL431ACPW TL431ACZ TL431ACPS TL431ACPK TL431ACPG TL431ACD TL431ACLP
Manufacturer Texas Instruments Texas Instruments Texas Instruments Fairchild Semiconductor Texas Instruments Texas Instruments onsemi Texas Instruments Texas Instruments
Product Status Active Active Active Obsolete Active Active Obsolete Active Active
Reference Type Shunt Shunt Shunt Shunt - Shunt Shunt Shunt Shunt
Output Type Adjustable Adjustable Adjustable Adjustable - Adjustable Adjustable Adjustable Adjustable
Voltage - Output (Min/Fixed) 2.495V 2.495V 2.495V 2.495V - 2.495V 2.495V 2.495V 2.495V
Voltage - Output (Max) 36 V 36 V 36 V 36 V - 36 V 36 V 36 V 36 V
Current - Output 100 mA 100 mA 100 mA 100 mA - 100 mA 100 mA 100 mA 100 mA
Tolerance ±1% ±1% ±1% ±1% - ±1% ±1% ±1% ±1%
Temperature Coefficient - - - - - - 50ppm/°C Typical - -
Noise - 0.1Hz to 10Hz - - - - - - - - -
Noise - 10Hz to 10kHz - - - - - - - - -
Voltage - Input - - - - - - - - -
Current - Supply - - - - - - - - -
Current - Cathode 600 µA 700 µA 600 µA 600 µA - 600 µA 1 mA 600 µA 600 µA
Operating Temperature 0°C ~ 70°C (TA) -40°C ~ 85°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) - 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA)
Mounting Type Through Hole Through Hole Surface Mount Through Hole - Surface Mount Through Hole Surface Mount Through Hole
Package / Case 8-DIP (0.300", 7.62mm) 8-DIP (0.300", 7.62mm) 8-TSSOP (0.173", 4.40mm Width) TO-226-2, TO-92-2 (TO-226AC) - TO-243AA 8-DIP (0.300", 7.62mm) 8-SOIC (0.154", 3.90mm Width) TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package 8-PDIP 8-PDIP 8-TSSOP TO-92-3 - SOT-89-3 8-PDIP 8-SOIC TO-92-3

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