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IC VREF SHUNT ADJ 2.2% SOT23-3
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FabricanteTexas Instruments
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Peça do Fabricante #LM431AIM3X/NOPB
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Pacote SOT-23-3
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Em Estoque4893
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Especificações
| Atributo | Valor |
| 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) | 37 V |
| Current - Output | 100 mA |
| Tolerance | ±2.2% |
| Temperature Coefficient | 50ppm/°C Typical |
| Current - Cathode | 1 mA |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Visão Geral
Description
The LM431AIM3X/NOPB is a precision adjustable shunt regulator commonly used in electronic circuits for voltage regulation. This component is part of the LM431 series, known for offering precise voltage references with adjustable outputs. It operates over a wide voltage range, typically from 2.5V to 36V, making it versatile for various applications.
The device is available in a compact SOT-23 package, which is ideal for space-constrained designs. It features a low output impedance, ensuring stable operation across different load conditions. The LM431AIM3X/NOPB is designed to replace Zener diodes in many applications, providing improved performance with tighter voltage tolerance and better temperature stability.
Key applications include switching power supplies, battery chargers, and adjustable voltage and current sources. Its NOPB (No-Pb) designation indicates that it is a lead-free, environmentally friendly component. The LM431AIM3X/NOPB's precision and reliability make it a popular choice for designers seeking efficient regulation solutions in compact electronic devices.
The device is available in a compact SOT-23 package, which is ideal for space-constrained designs. It features a low output impedance, ensuring stable operation across different load conditions. The LM431AIM3X/NOPB is designed to replace Zener diodes in many applications, providing improved performance with tighter voltage tolerance and better temperature stability.
Key applications include switching power supplies, battery chargers, and adjustable voltage and current sources. Its NOPB (No-Pb) designation indicates that it is a lead-free, environmentally friendly component. The LM431AIM3X/NOPB's precision and reliability make it a popular choice for designers seeking efficient regulation solutions in compact electronic devices.
Equivalent
The LM431AIM3X/NOPB is a programmable shunt voltage reference. Equivalent products include:
1. TL431 (Texas Instruments) – General purpose shunt voltage reference.
2. TLVH431 (Texas Instruments) – Low-voltage adjustable shunt regulator.
3. LMV431 (Texas Instruments) – Low-voltage shunt regulator.
4. AZ431 (Diodes Incorporated) – Adjustable precision shunt regulator.
5. KA431 (ON Semiconductor) – Precision voltage reference.
6. AS431 (Diodes Incorporated) – Precision adjustable shunt voltage reference.
These alternatives offer similar functionality with varying specifications.
1. TL431 (Texas Instruments) – General purpose shunt voltage reference.
2. TLVH431 (Texas Instruments) – Low-voltage adjustable shunt regulator.
3. LMV431 (Texas Instruments) – Low-voltage shunt regulator.
4. AZ431 (Diodes Incorporated) – Adjustable precision shunt regulator.
5. KA431 (ON Semiconductor) – Precision voltage reference.
6. AS431 (Diodes Incorporated) – Precision adjustable shunt voltage reference.
These alternatives offer similar functionality with varying specifications.
Features
The LM431AIM3X/NOPB is a precision programmable shunt voltage reference. Key features include:
1. Adjustable Output: The device allows for an adjustable output voltage range from 2.5V to 36V, providing flexibility for various applications.
2. Precision: It offers a high precision reference with a typical temperature coefficient of 50 ppm/°C, ensuring stability over temperature variations.
3. Low Temperature Drift: Ensures consistent performance across a wide temperature range.
4. Stability: The device is stable with capacitive loads, enhancing its reliability in circuit designs.
5. Low Output Impedance: Features a low output impedance of approximately 0.2 ohms, optimizing it for use in feedback circuits.
6. Operating Current: The cathode current range is from 1 mA to 100 mA, making it suitable for low-power applications.
7. Package: It is available in a SOT-23-3 package, which is compact and suitable for space-constrained designs.
8. Applications: Commonly used in voltage regulation, power supplies, and as a reference in data acquisition systems.
These features make the LM431AIM3X/NOPB a versatile component for precision voltage regulation tasks.
1. Adjustable Output: The device allows for an adjustable output voltage range from 2.5V to 36V, providing flexibility for various applications.
2. Precision: It offers a high precision reference with a typical temperature coefficient of 50 ppm/°C, ensuring stability over temperature variations.
3. Low Temperature Drift: Ensures consistent performance across a wide temperature range.
4. Stability: The device is stable with capacitive loads, enhancing its reliability in circuit designs.
5. Low Output Impedance: Features a low output impedance of approximately 0.2 ohms, optimizing it for use in feedback circuits.
6. Operating Current: The cathode current range is from 1 mA to 100 mA, making it suitable for low-power applications.
7. Package: It is available in a SOT-23-3 package, which is compact and suitable for space-constrained designs.
8. Applications: Commonly used in voltage regulation, power supplies, and as a reference in data acquisition systems.
These features make the LM431AIM3X/NOPB a versatile component for precision voltage regulation tasks.
Pinout
The LM431AIM3X/NOPB is a three-terminal adjustable shunt regulator. It is available in a SOT-23-3 package, which means it has a pin count of 3. The primary function of the LM431 is to operate as a precision voltage reference in various electronic applications. It can be used to set a stable output voltage over a wide range by adjusting the external resistor network.
Here is a brief description of the function of each pin:
1. Reference (Ref): This is the input pin used to set the reference voltage through an external resistor divider. It controls the output voltage.
2. Cathode (K): This pin is connected to the negative side of the output and is used to sink current from the load.
3. Anode (A): This pin is the positive side of the shunt regulator and is connected to the output voltage.
The LM431 can be used in applications like power supply regulation, precision voltage reference, switching power supplies, and adjustable voltage regulators.
Here is a brief description of the function of each pin:
1. Reference (Ref): This is the input pin used to set the reference voltage through an external resistor divider. It controls the output voltage.
2. Cathode (K): This pin is connected to the negative side of the output and is used to sink current from the load.
3. Anode (A): This pin is the positive side of the shunt regulator and is connected to the output voltage.
The LM431 can be used in applications like power supply regulation, precision voltage reference, switching power supplies, and adjustable voltage regulators.
Manufacturer
The LM431AIM3X/NOPB is manufactured by Texas Instruments (TI), a global semiconductor design and manufacturing company. Texas Instruments is known for developing analog and embedded processing chips, which are critical components in a wide range of electronic systems. The company serves various markets, including industrial, automotive, personal electronics, communications equipment, and enterprise systems. TI is recognized for its innovation in the semiconductor industry and for providing solutions that help drive advancements in technology across multiple sectors.
Application
The LM431AIM3X/NOPB is a precision adjustable shunt regulator used in various applications. Key areas include power supply regulation, where it provides a stable reference voltage for linear and switching power supplies. It's also used in series or parallel voltage regulation circuits and can function as an adjustable zener diode. Additionally, this component is useful in precision current limiting and monitoring, error amplifiers, and as a voltage reference in analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). Its versatility and stability make it suitable for use in consumer electronics, industrial controls, and communication equipment.
Package
The LM431AIM3X/NOPB is packaged in a SOT-23-3 (Small Outline Transistor) package, which is a small, surface-mount package commonly used for electronic components.
