사양
| 속성 | 가치 |
| Package / Case | Box |
| Part Status | Active |
| Reference Type | Shunt |
| Output Type | Adjustable |
| Voltage - Output (Min/Fixed) | 2.495V |
| Voltage - Output (Max) | 37 V |
| Current - Output | 100 mA |
| Tolerance | ±2.2% |
| Temperature Coefficient | 50ppm/°C Typical |
| Current - Cathode | 1 mA |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole |
개요
Description
The LM431ACZ/NOPB is a precision voltage reference and adjustable shunt regulator commonly used in electronic circuits for maintaining a stable voltage. It functions similarly to a Zener diode but offers improved performance with a programmable output voltage, typically ranging from 2.5V to 36V. The device is adaptable to a wide range of applications, including power supply regulation, instrumentation, and as a reference element in feedback networks.
Key features of the LM431ACZ/NOPB include a low temperature coefficient, typically 50 ppm/°C, ensuring stable operation across temperature variations. It provides a reference voltage with an accuracy of ±1%, making it suitable for precision applications. The device operates efficiently with a low cathode current, generally down to 1 mA, and can handle a maximum cathode current of up to 100 mA.
Packaged in a TO-92 form factor, the LM431ACZ/NOPB is easy to integrate into various circuit designs and is widely used in consumer electronics, automotive, and industrial applications due to its reliability and precision.
Key features of the LM431ACZ/NOPB include a low temperature coefficient, typically 50 ppm/°C, ensuring stable operation across temperature variations. It provides a reference voltage with an accuracy of ±1%, making it suitable for precision applications. The device operates efficiently with a low cathode current, generally down to 1 mA, and can handle a maximum cathode current of up to 100 mA.
Packaged in a TO-92 form factor, the LM431ACZ/NOPB is easy to integrate into various circuit designs and is widely used in consumer electronics, automotive, and industrial applications due to its reliability and precision.
Equivalent
The LM431ACZ/NOPB is a programmable shunt voltage reference. Equivalent products include:
1. TL431 series by Texas Instruments
2. KA431 by ON Semiconductor
3. AZ431 by Diodes Incorporated
4. LMV431 by Texas Instruments
5. AS431 by Diodes Incorporated
These devices perform similar functions and are often used interchangeably in applications requiring precision voltage regulation. Always check the datasheet for compatibility with your specific requirements.
1. TL431 series by Texas Instruments
2. KA431 by ON Semiconductor
3. AZ431 by Diodes Incorporated
4. LMV431 by Texas Instruments
5. AS431 by Diodes Incorporated
These devices perform similar functions and are often used interchangeably in applications requiring precision voltage regulation. Always check the datasheet for compatibility with your specific requirements.
Features
The LM431ACZ/NOPB is a precision adjustable shunt regulator. Key features include:
1. Adjustable Output Voltage: It can be adjusted from 2.5V to 36V, providing flexibility for various applications.
2. Precision: The device offers an initial voltage tolerance of ±1% at 25°C, ensuring accurate performance.
3. Temperature Stability: It has a temperature coefficient of 50 ppm/°C, maintaining stability across a wide temperature range.
4. Low Output Impedance: The typical output impedance is 0.2 ohms, which contributes to better load regulation.
5. Wide Operating Current: It has an operating current range from 1 mA to 100 mA, allowing for efficient operation in different scenarios.
6. Package Options: The LM431ACZ/NOPB is available in TO-92 package, making it suitable for through-hole applications.
7. Applications: Commonly used in switching power supplies, voltage monitoring, and adjustable power supplies due to its precise voltage regulation capabilities.
These features make the LM431ACZ/NOPB suitable for precision applications requiring reliable voltage regulation.
1. Adjustable Output Voltage: It can be adjusted from 2.5V to 36V, providing flexibility for various applications.
2. Precision: The device offers an initial voltage tolerance of ±1% at 25°C, ensuring accurate performance.
3. Temperature Stability: It has a temperature coefficient of 50 ppm/°C, maintaining stability across a wide temperature range.
4. Low Output Impedance: The typical output impedance is 0.2 ohms, which contributes to better load regulation.
5. Wide Operating Current: It has an operating current range from 1 mA to 100 mA, allowing for efficient operation in different scenarios.
6. Package Options: The LM431ACZ/NOPB is available in TO-92 package, making it suitable for through-hole applications.
7. Applications: Commonly used in switching power supplies, voltage monitoring, and adjustable power supplies due to its precise voltage regulation capabilities.
These features make the LM431ACZ/NOPB suitable for precision applications requiring reliable voltage regulation.
Pinout
The LM431ACZ/NOPB is a three-terminal adjustable shunt regulator. It typically comes in a TO-92 package, which has three pins. The functions of these pins are:
1. Reference (Ref): This pin is connected to the internal reference voltage and is used to set the output voltage by connecting it to a resistive voltage divider. It determines the setpoint voltage for the regulation.
2. Anode (A): This pin is connected to the ground or a lower potential in the shunt regulator configuration. It is where the current flows into the device when it is regulating.
3. Cathode (K): This is the output pin through which the regulated voltage is provided. It is connected to the load and the positive side of the power supply in a typical shunt regulator setup.
These pins allow the LM431 to maintain a stable output voltage by acting as a variable resistor, adjusting the current flow to keep the output voltage constant despite changes in the load current or input voltage.
1. Reference (Ref): This pin is connected to the internal reference voltage and is used to set the output voltage by connecting it to a resistive voltage divider. It determines the setpoint voltage for the regulation.
2. Anode (A): This pin is connected to the ground or a lower potential in the shunt regulator configuration. It is where the current flows into the device when it is regulating.
3. Cathode (K): This is the output pin through which the regulated voltage is provided. It is connected to the load and the positive side of the power supply in a typical shunt regulator setup.
These pins allow the LM431 to maintain a stable output voltage by acting as a variable resistor, adjusting the current flow to keep the output voltage constant despite changes in the load current or input voltage.
Manufacturer
The LM431ACZ/NOPB is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company known for designing and manufacturing a wide range of electronic components, including analog and embedded processing chips. They are one of the largest semiconductor companies in the world, serving various industries such as automotive, industrial, personal electronics, and communications. Texas Instruments is highly regarded for its innovation in producing high-performance, reliable products that form the backbone of modern electronic systems.
Application
The LM431ACZ/NOPB is a precision voltage reference and shunt regulator ideal for use in various applications. It is commonly used in power supply regulation to maintain a stable output voltage. Additionally, it serves as a reference voltage in analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). The device is also utilized in linear regulators, switch-mode power supplies, and battery-operated devices for voltage monitoring. Its precision and flexibility make it suitable for instrumentation applications and other circuits requiring a stable reference voltage.
Package
The LM431ACZ/NOPB is a precision adjustable shunt voltage regulator packaged in a TO-92 form factor. This package type is commonly used for through-hole mounting applications, providing a reliable and compact solution for voltage regulation tasks.
