Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Not For New Designs |
| ReferenceType | Shunt |
| OutputType | Adjustable |
| Voltage-Output(Min/Fixed) | 2.495V |
| Voltage-Output(Max) | 37 V |
| Current-Output | 100 mA |
| Tolerance | ±1% |
| TemperatureCoefficient | 50ppm/°C Typical |
| Current-Cathode | 1 mA |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | TO-236-3, SC-59, SOT-23-3 |
Обзор
Description
The LM431BIM3X is a precision adjustable shunt regulator, commonly used in electronic circuits for voltage regulation. It operates with a wide range of input voltages and provides a stable reference voltage, typically used in applications such as switching power supplies, battery chargers, and error amplifiers. The device offers a reference voltage of around 2.5V and can handle cathode currents ranging from 1 mA to 100 mA.
Key features of the LM431BIM3X include low temperature coefficient, fast turn-on response, and low output noise, making it suitable for precision applications. It is available in a SOT-23 package, which is compact and surface-mountable, making it ideal for space-constrained designs.
The versatility and reliability of the LM431BIM3X make it a popular choice for designers who need a simple solution for voltage regulation in various electronic devices.
Key features of the LM431BIM3X include low temperature coefficient, fast turn-on response, and low output noise, making it suitable for precision applications. It is available in a SOT-23 package, which is compact and surface-mountable, making it ideal for space-constrained designs.
The versatility and reliability of the LM431BIM3X make it a popular choice for designers who need a simple solution for voltage regulation in various electronic devices.
Equivalent
The LM431BIM3X is a precision adjustable shunt regulator. Equivalent products include the TL431 series from Texas Instruments, the KA431 series from ON Semiconductor, the TLVH431 from Texas Instruments, the AZ431 from Diodes Incorporated, and the AS431 from BCD Semiconductor. It is crucial to check the specific datasheets and ensure that the electrical characteristics, such as reference voltage, temperature range, and package type, match your requirements.
Features
The LM431BIM3X is a precision adjustable shunt regulator with the following key features:
1. Adjustable Output Voltage: The device can be set to output a voltage between 2.5V and 36V using two external resistors.
2. Accuracy: It offers a typical output voltage tolerance of ±0.5%, ensuring precise regulation.
3. Reference Voltage: It has a 2.5V reference voltage.
4. Wide Operating Current: The LM431BIM3X operates over a wide cathode current range, from 1 mA to 100 mA.
5. Temperature Stability: The device maintains performance across a broad temperature range, typically from -25°C to 85°C.
6. Package Options: It is available in small SOT-23 and TO-92 package types, which are suitable for space-constrained applications.
7. Low Dynamic Output Impedance: This feature helps maintain stable output voltage under varying load conditions.
8. Applications: Commonly used in power supplies, voltage monitoring, and adjustable voltage references.
These features make the LM431BIM3X a versatile component for various electronic applications requiring precise voltage regulation.
1. Adjustable Output Voltage: The device can be set to output a voltage between 2.5V and 36V using two external resistors.
2. Accuracy: It offers a typical output voltage tolerance of ±0.5%, ensuring precise regulation.
3. Reference Voltage: It has a 2.5V reference voltage.
4. Wide Operating Current: The LM431BIM3X operates over a wide cathode current range, from 1 mA to 100 mA.
5. Temperature Stability: The device maintains performance across a broad temperature range, typically from -25°C to 85°C.
6. Package Options: It is available in small SOT-23 and TO-92 package types, which are suitable for space-constrained applications.
7. Low Dynamic Output Impedance: This feature helps maintain stable output voltage under varying load conditions.
8. Applications: Commonly used in power supplies, voltage monitoring, and adjustable voltage references.
These features make the LM431BIM3X a versatile component for various electronic applications requiring precise voltage regulation.
Pinout
The LM431BIM3X is a three-terminal adjustable shunt regulator. It is commonly available in a SOT-23-3 package, which has three pins. The pin configuration and function for the SOT-23-3 package are as follows:
1. Cathode (Pin 1): This pin is connected to the anode of the internal diode and is typically connected to the negative side of the output voltage. It acts as the output and current sink for the device.
2. Anode (Pin 2): This pin is the anode of the internal zener diode and is generally connected to the ground or the lower potential side of the circuit.
3. Reference (Pin 3): This pin is used to set the reference voltage. By connecting it to a resistor divider network, you can adjust the output voltage of the shunt regulator.
The LM431BIM3X can be used for various applications, including voltage regulation, precision current limiting, or acting as a comparator.
1. Cathode (Pin 1): This pin is connected to the anode of the internal diode and is typically connected to the negative side of the output voltage. It acts as the output and current sink for the device.
2. Anode (Pin 2): This pin is the anode of the internal zener diode and is generally connected to the ground or the lower potential side of the circuit.
3. Reference (Pin 3): This pin is used to set the reference voltage. By connecting it to a resistor divider network, you can adjust the output voltage of the shunt regulator.
The LM431BIM3X can be used for various applications, including voltage regulation, precision current limiting, or acting as a comparator.
Manufacturer
The LM431BIM3X is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. The company is one of the top ten semiconductor companies worldwide based on sales volume. TI is known for its development of analog chips and embedded processors, which are used in a wide range of applications, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company also produces digital light processing (DLP) technology and education technology products, such as calculators, microcontrollers, and multi-core processors. Texas Instruments is headquartered in Dallas, Texas, and operates globally.
Application
The LM431BIM3X is a precision adjustable shunt regulator commonly used in various applications. Key application areas include:
1. Voltage Reference: Provides a stable reference voltage in circuits.
2. Voltage Regulation: Functions as a low-cost, high-precision voltage regulator.
3. Switching Power Supplies: Utilized in feedback loops to maintain output voltage.
4. Analog Circuit Design: Acts as a precision voltage reference for analog circuits.
5. Overvoltage/Undervoltage Protection: Helps protect circuits from voltage fluctuations.
6. Battery Chargers: Ensures accurate voltage levels in battery charging applications.
Its versatility and precision make it suitable for a wide range of electronic applications requiring stable voltage references.
1. Voltage Reference: Provides a stable reference voltage in circuits.
2. Voltage Regulation: Functions as a low-cost, high-precision voltage regulator.
3. Switching Power Supplies: Utilized in feedback loops to maintain output voltage.
4. Analog Circuit Design: Acts as a precision voltage reference for analog circuits.
5. Overvoltage/Undervoltage Protection: Helps protect circuits from voltage fluctuations.
6. Battery Chargers: Ensures accurate voltage levels in battery charging applications.
Its versatility and precision make it suitable for a wide range of electronic applications requiring stable voltage references.
Package
The LM431BIM3X is a precision adjustable shunt regulator. It comes in a SOT-23 package, which is a small-outline transistor package commonly used for surface-mount devices in electronic circuits.
