仕様
| 属性 | 値 |
| 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 | ±2.2% |
| Current - Cathode | 1 mA |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Surface Mount |
概要
Description
The TL431CDR is a three-terminal adjustable precision shunt regulator diode. It is widely used in electronic circuits for voltage regulation and reference purposes. The device offers a stable output voltage over a wide range of operating temperatures and currents. It can be adjusted from 2.5V to 36V using two external resistors, making it versatile for various applications.
The TL431CDR features a tight voltage tolerance, low output noise, and a fast turn-on response, making it suitable for precision applications. It is commonly used in power supplies, adjustable voltage references, and as a comparator within electronic circuits. The device comes in a compact SOIC-8 package, suitable for surface-mount technology, and is capable of sinking up to 100 mA of cathode current.
Its reliability and precision make the TL431CDR a popular choice among engineers for designing stable voltage references and regulating circuits in consumer electronics, industrial equipment, and communication devices.
The TL431CDR features a tight voltage tolerance, low output noise, and a fast turn-on response, making it suitable for precision applications. It is commonly used in power supplies, adjustable voltage references, and as a comparator within electronic circuits. The device comes in a compact SOIC-8 package, suitable for surface-mount technology, and is capable of sinking up to 100 mA of cathode current.
Its reliability and precision make the TL431CDR a popular choice among engineers for designing stable voltage references and regulating circuits in consumer electronics, industrial equipment, and communication devices.
Equivalent
The TL431CDR is a programmable precision shunt voltage regulator. Equivalent products include:
1. LM431
2. KA431
3. LMV431
4. AZ431
5. AS431
6. TL432
These are functionally similar and can often be used interchangeably, but always check the datasheets for specific characteristics and pin configurations to ensure compatibility with your application.
1. LM431
2. KA431
3. LMV431
4. AZ431
5. AS431
6. TL432
These are functionally similar and can often be used interchangeably, but always check the datasheets for specific characteristics and pin configurations to ensure compatibility with your application.
Features
The TL431CDR is a precision programmable voltage reference with the following key features:
1. Adjustable Output Voltage: It provides an output voltage that can be adjusted from 2.5V to 36V by using two external resistors.
2. High Accuracy: It offers an excellent voltage reference accuracy with a tolerance as low as ±1%.
3. Temperature Stability: The device exhibits good temperature stability, making it suitable for applications requiring consistent performance over varying temperatures.
4. Wide Operating Current Range: It operates over a wide cathode current range from 1 mA to 100 mA.
5. Low Output Noise: The TL431CDR has low output noise, which is ideal for precision applications.
6. Fast Turn-On Response: It features a fast turn-on time, suitable for applications needing quick response times.
7. Compatibility: Available in surface-mount (SOT-23) and through-hole (TO-92) packages, it is compatible with a variety of circuit designs.
8. Applications: Commonly used in voltage monitoring, switch-mode power supplies, and adjustable regulators.
These features make the TL431CDR versatile and reliable for precision voltage reference applications.
1. Adjustable Output Voltage: It provides an output voltage that can be adjusted from 2.5V to 36V by using two external resistors.
2. High Accuracy: It offers an excellent voltage reference accuracy with a tolerance as low as ±1%.
3. Temperature Stability: The device exhibits good temperature stability, making it suitable for applications requiring consistent performance over varying temperatures.
4. Wide Operating Current Range: It operates over a wide cathode current range from 1 mA to 100 mA.
5. Low Output Noise: The TL431CDR has low output noise, which is ideal for precision applications.
6. Fast Turn-On Response: It features a fast turn-on time, suitable for applications needing quick response times.
7. Compatibility: Available in surface-mount (SOT-23) and through-hole (TO-92) packages, it is compatible with a variety of circuit designs.
8. Applications: Commonly used in voltage monitoring, switch-mode power supplies, and adjustable regulators.
These features make the TL431CDR versatile and reliable for precision voltage reference applications.
Pinout
The TL431CDR is a three-pin adjustable precision shunt regulator. Its pin configuration and functions are as follows:
1. Reference Pin (Ref): This pin is used to set the reference voltage. By connecting it to a resistor divider, you can adjust the output voltage.
2. Anode Pin (A): This is the cathode of the internal reference and the ground of the device. It acts as the ground or the negative terminal in the circuit.
3. Cathode Pin (K): This pin functions as the output of the shunt regulator. It connects to the load and provides a stable reference voltage by shunting current to ground.
The TL431 can provide an output voltage that is adjustable over a range of 2.5V to 36V, with a typical initial accuracy of 0.5%. It is commonly used in applications like voltage monitoring, voltage reference, or as a comparator.
1. Reference Pin (Ref): This pin is used to set the reference voltage. By connecting it to a resistor divider, you can adjust the output voltage.
2. Anode Pin (A): This is the cathode of the internal reference and the ground of the device. It acts as the ground or the negative terminal in the circuit.
3. Cathode Pin (K): This pin functions as the output of the shunt regulator. It connects to the load and provides a stable reference voltage by shunting current to ground.
The TL431 can provide an output voltage that is adjustable over a range of 2.5V to 36V, with a typical initial accuracy of 0.5%. It is commonly used in applications like voltage monitoring, voltage reference, or as a comparator.
Manufacturer
The TL431CDR is manufactured by Texas Instruments. Texas Instruments is a global semiconductor design and manufacturing company headquartered in Dallas, Texas. It is one of the largest and most prominent companies in the semiconductor industry. TI designs and produces a wide range of analog and embedded processing chips that are used in a variety of electronic devices and applications, including industrial, automotive, personal electronics, communications, and enterprise systems. The company is known for its innovation and leadership in technology, providing high-quality components that are essential to various electronic systems.
Application
The TL431CDR is a programmable precision reference with applications in various fields. It is commonly used in voltage regulation for switching power supplies and linear regulators, where stable reference voltages are crucial. It is also utilized in battery-operated devices to ensure accurate battery management and in overvoltage and undervoltage protection circuits for added safety. Additionally, the TL431CDR is employed in data acquisition systems and instrumentation for precise calibration and measurement. Its adjustable voltage reference makes it suitable for use in precision comparators and error amplifiers in control loops. Its versatility and precision make it a valuable component in numerous electronic applications.
Package
The TL431CDR is a programmable precision reference component commonly housed in a SOT-23-3 or SOIC-8 package. These compact surface-mount packages facilitate efficient integration onto circuit boards, providing a reliable voltage reference for various electronic applications.
