Overview
The LM431AIM3/NOPB is a 3-terminal adjustable shunt regulator produced by Texas Instruments. This device is known for its temperature stability over the entire operating temperature range, making it an excellent replacement for many Zener diode applications. The LM431 allows for programmable output voltage, which can be set at any level greater than 2.5 V (VREF) up to 36 V, using two external resistors as a voltage divider network. It is available in space-saving packages such as SOIC-8, SOT-23, and TO-92.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOT-23 (DBZ) |
| Pins | 3 |
| Operating Temperature Range (°C) | -40 to 85 |
| Reference Voltage (VREF) | 2.495 V |
| Adjustable Output Voltage Range | 2.5 V to 36 V |
| Current Rating | 100 mA |
| Accuracy | 2%, 1%, or 0.5% |
| Average Temperature Coefficient | 50 ppm/°C |
| Package Quantity | Carrier 1,000 (SMALL T&R) |
| RoHS Compliance | Yes |
Key Features
- Average Temperature Coefficient of 50 ppm/°C
- Temperature Compensated for Operation Over the Full Temperature Range
- Programmable Output Voltage
- Fast Turnon Response
- Low-Output Noise
- Low-Dynamic Output Impedance
- Available in Space-Saving SOIC-8, SOT-23, and TO-92 Packages
Applications
The LM431AIM3/NOPB is suitable for a variety of applications where a stable and adjustable voltage reference is required. It can be used as a replacement for Zener diodes in many circuits, and its adjustable output voltage makes it versatile for different design needs. Common applications include voltage regulation, voltage monitoring, and precision voltage referencing in industrial, automotive, and consumer electronics.
Q & A
- What is the LM431AIM3/NOPB?
The LM431AIM3/NOPB is a 3-terminal adjustable shunt regulator produced by Texas Instruments.
- What are the available packages for the LM431?
The LM431 is available in SOIC-8, SOT-23, and TO-92 packages.
- What is the adjustable output voltage range of the LM431AIM3/NOPB?
The output voltage can be set at any level greater than 2.5 V up to 36 V.
- What is the current rating of the LM431AIM3/NOPB?
The current rating is 100 mA.
- What is the average temperature coefficient of the LM431AIM3/NOPB?
The average temperature coefficient is 50 ppm/°C.
- Is the LM431AIM3/NOPB RoHS compliant?
Yes, the LM431AIM3/NOPB is RoHS compliant.
- What are the common applications of the LM431AIM3/NOPB?
Common applications include voltage regulation, voltage monitoring, and precision voltage referencing in various industries.
- How do I set the output voltage of the LM431AIM3/NOPB?
The output voltage can be set using two external resistors as a voltage divider network.
- What are the key features of the LM431AIM3/NOPB?
Key features include fast turnon response, low-output noise, and low-dynamic output impedance.
- What is the operating temperature range of the LM431AIM3/NOPB?
The operating temperature range is -40°C to 85°C.
