Overview
The Texas Instruments LM431CIM3X/NOPB is a 3-terminal adjustable shunt regulator known for its temperature stability and versatility. This component is part of the LM431 series, which is widely used in various electronic circuits to provide a stable voltage reference. The LM431CIM3X/NOPB is packaged in a space-saving SOT-23 (DBZ) package with 3 pins, making it suitable for applications where board space is limited. It operates over a wide temperature range of -40°C to 85°C, ensuring reliable performance in diverse environmental conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-23 (DBZ) | |
| Pins | 3 | |
| Operating Temperature Range | -40 to 85 | °C |
| Output Voltage Range | 2.5 to 36 | V |
| Continuous Cathode Current | 150 | mA |
| Reference Input Current | 10 | mA |
| Internal Power Dissipation | 0.28 | W |
| Temperature Coefficient | 50 ppm/°C Typical | |
| Output Voltage Tolerance | -0.6%, +0.4% |
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 LM431CIM3X/NOPB is an excellent choice for various applications requiring a stable voltage reference. It is commonly used in:
- Voltage regulation circuits
- Power supplies
- Instrumentation and measurement equipment
- Industrial control systems
- Replacement for Zener diodes in many applications due to its sharp turnon characteristics
Q & A
- What is the operating temperature range of the LM431CIM3X/NOPB?
The operating temperature range is -40°C to 85°C.
- What is the output voltage range of the LM431CIM3X/NOPB?
The output voltage can be set between 2.5 V and 36 V.
- What is the package type of the LM431CIM3X/NOPB?
The component is packaged in a SOT-23 (DBZ) package with 3 pins.
- What is the maximum continuous cathode current for the LM431CIM3X/NOPB?
The maximum continuous cathode current is 150 mA.
- Is the LM431CIM3X/NOPB RoHS compliant?
Yes, the LM431CIM3X/NOPB is RoHS compliant and lead-free.
- What is the temperature coefficient of the LM431CIM3X/NOPB?
The temperature coefficient is 50 ppm/°C typical.
- Can the LM431CIM3X/NOPB replace Zener diodes in some applications?
Yes, it can replace Zener diodes due to its sharp turnon characteristics.
- What are the common applications of the LM431CIM3X/NOPB?
Common applications include voltage regulation circuits, power supplies, instrumentation, and industrial control systems.
- How is the output voltage of the LM431CIM3X/NOPB programmed?
The output voltage is programmed by selecting two external resistors that act as a voltage divider network.
- What are the key features of the LM431CIM3X/NOPB?
Key features include temperature compensation, fast turnon response, low-output noise, and low-dynamic output impedance.
