Specifications
| Attribute | Value |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Reference Type | Shunt |
| Output Type | Adjustable |
| Voltage - Output (Min/Fixed) | 2.495V |
| Voltage - Output (Max) | 36 V |
| Current - Output | 100 mA |
| Tolerance | ±1% |
| Current - Cathode | 700 µA |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Overview
Description
The TL431AIPK is a precision programmable shunt voltage reference, often used in electronic circuits for voltage regulation and reference purposes. Manufactured by Texas Instruments, this component is designed to maintain a stable reference voltage over a wide range of operating conditions, which is critical for various applications like power supply and data acquisition systems.
The "A" in TL431AIPK indicates an improved precision model, offering a typical reference voltage tolerance of ±0.5%. The device operates within a voltage range of 2.5V to 36V and is capable of sinking up to 100 mA of current, making it suitable for a broad range of power supply designs.
Packaged in a TO-92 or SOT-89 transistor outline, it is compact and easy to integrate into both through-hole and surface-mount designs. The TL431AIPK can be used in series or parallel configurations and supports adjustable output voltages through two external resistors, offering versatility in circuit design. Its stability, precision, and flexible configurations make it a popular choice for engineers looking to implement accurate voltage references in their systems.
The "A" in TL431AIPK indicates an improved precision model, offering a typical reference voltage tolerance of ±0.5%. The device operates within a voltage range of 2.5V to 36V and is capable of sinking up to 100 mA of current, making it suitable for a broad range of power supply designs.
Packaged in a TO-92 or SOT-89 transistor outline, it is compact and easy to integrate into both through-hole and surface-mount designs. The TL431AIPK can be used in series or parallel configurations and supports adjustable output voltages through two external resistors, offering versatility in circuit design. Its stability, precision, and flexible configurations make it a popular choice for engineers looking to implement accurate voltage references in their systems.
Equivalent
The TL431AIPK is a precision programmable shunt regulator. Equivalent products include:
1. LM431 by Texas Instruments
2. KA431 by ON Semiconductor
3. AZ431 by Diodes Incorporated
4. TL431 by Microchip Technology
5. ZTL431 by Zetex
These alternatives provide similar voltage reference and performance characteristics, serving as direct replacements in most applications. Always verify compatibility based on specific design requirements.
1. LM431 by Texas Instruments
2. KA431 by ON Semiconductor
3. AZ431 by Diodes Incorporated
4. TL431 by Microchip Technology
5. ZTL431 by Zetex
These alternatives provide similar voltage reference and performance characteristics, serving as direct replacements in most applications. Always verify compatibility based on specific design requirements.
Features
The TL431AIPK is a popular adjustable precision shunt regulator with several key features:
1. Adjustable Output Voltage: The output voltage can be set to anywhere between 2.5V and 36V using an external resistor divider.
2. Precision: It offers a typical reference voltage tolerance of ±0.5%, ensuring high accuracy for critical applications.
3. Wide Operating Current: The device operates over a wide cathode current range from 1 mA to 100 mA.
4. Temperature Stability: It maintains precision over a temperature range from 0°C to 70°C, making it suitable for various environmental conditions.
5. Low Output Impedance: The TL431AIPK features low output impedance, enhancing its performance in various circuit applications.
6. Versatility: It can be used in a wide range of applications, such as voltage monitoring, adjustable power supplies, and error amplifiers in switch-mode power supplies.
7. Package: The TL431AIPK is available in a small SOT-89 package, providing space-saving benefits for compact circuit designs.
These features make the TL431AIPK a versatile and reliable component in many electronic designs.
1. Adjustable Output Voltage: The output voltage can be set to anywhere between 2.5V and 36V using an external resistor divider.
2. Precision: It offers a typical reference voltage tolerance of ±0.5%, ensuring high accuracy for critical applications.
3. Wide Operating Current: The device operates over a wide cathode current range from 1 mA to 100 mA.
4. Temperature Stability: It maintains precision over a temperature range from 0°C to 70°C, making it suitable for various environmental conditions.
5. Low Output Impedance: The TL431AIPK features low output impedance, enhancing its performance in various circuit applications.
6. Versatility: It can be used in a wide range of applications, such as voltage monitoring, adjustable power supplies, and error amplifiers in switch-mode power supplies.
7. Package: The TL431AIPK is available in a small SOT-89 package, providing space-saving benefits for compact circuit designs.
These features make the TL431AIPK a versatile and reliable component in many electronic designs.
Pinout
The TL431AIPK is a three-terminal adjustable shunt regulator. It essentially functions as a precise voltage reference and is commonly used in voltage regulation and feedback control circuits. The device is available in various package options; the pin count and configuration might vary depending on the specific package type. However, the most common configuration for the TL431 series in a typical 3-pin package includes:
1. Reference (R): This pin is used to set the reference voltage by connecting it to an external resistor divider network.
2. Anode (A): This is the common ground or negative voltage reference pin.
3. Cathode (K): This pin is the output, connected to the load and the positive voltage reference point.
The TL431AIPK can be adjusted to output a voltage between 2.5V and 36V by altering the external resistor network. It is designed for a wide range of applications including power supply regulation, precision voltage reference, and adjustable voltage reference in various electronic circuits.
1. Reference (R): This pin is used to set the reference voltage by connecting it to an external resistor divider network.
2. Anode (A): This is the common ground or negative voltage reference pin.
3. Cathode (K): This pin is the output, connected to the load and the positive voltage reference point.
The TL431AIPK can be adjusted to output a voltage between 2.5V and 36V by altering the external resistor network. It is designed for a wide range of applications including power supply regulation, precision voltage reference, and adjustable voltage reference in various electronic circuits.
Manufacturer
The TL431AIPK is manufactured by Texas Instruments, an American technology company. Texas Instruments is a global leader in the design and manufacturing of semiconductors, which are essential components in electronic devices. The company is well-known for its analog and embedded processing products, serving a wide range of industries including automotive, communications, industrial, and consumer electronics. Texas Instruments is recognized for its innovation and quality in the semiconductor industry, providing solutions that enhance the performance and efficiency of electronic equipment.
Application
The TL431AIPK is a versatile adjustable precision shunt regulator used in various applications. Common application areas include:
1. Voltage Regulation: It is used in power supplies for maintaining stable output voltage.
2. Precision Reference: Serves as a reference voltage in measurement and calibration equipment.
3. Switching Power Supplies: Acts as a feedback element to improve accuracy and stability.
4. Battery Chargers: Ensures proper charging by regulating voltage levels.
5. Overvoltage Protection: Provides protection in electronic circuits by clamping excessive voltages.
6. LED Drivers: Used to regulate current for consistent LED brightness.
7. Analog Circuitry: Provides precise voltage references in analog processing tasks.
Its adaptability in precision voltage regulation makes it ideal for use in a wide range of electronic systems.
1. Voltage Regulation: It is used in power supplies for maintaining stable output voltage.
2. Precision Reference: Serves as a reference voltage in measurement and calibration equipment.
3. Switching Power Supplies: Acts as a feedback element to improve accuracy and stability.
4. Battery Chargers: Ensures proper charging by regulating voltage levels.
5. Overvoltage Protection: Provides protection in electronic circuits by clamping excessive voltages.
6. LED Drivers: Used to regulate current for consistent LED brightness.
7. Analog Circuitry: Provides precise voltage references in analog processing tasks.
Its adaptability in precision voltage regulation makes it ideal for use in a wide range of electronic systems.
Package
The TL431AIPK is typically available in a surface-mount SOT-89 package. This package type is commonly used for small electronic components, allowing for efficient heat dissipation and compact design in various applications.
