Overview
The LMV431BIMF/NOPB is a low-voltage adjustable precision shunt regulator produced by Texas Instruments. This device is part of the LMV431 series, which includes the LMV431, LMV431A, and LMV431B. The LMV431BIMF/NOPB is known for its low-voltage operation, starting at 1.24 V, and its wide adjustment range up to 30 V. It is designed to provide high precision and stability, making it suitable for various applications requiring zener diode type performance at low voltages.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Operating Temperature (Industrial) | -40 | 85 | °C | |
| Operating Temperature (Commercial) | 0 | 70 | °C | |
| Lead Temperature (Soldering, 10 sec.) | 265 | °C | ||
| Internal Power Dissipation (TO-92 Package) | 0.78 | W | ||
| Internal Power Dissipation (SOT-23-5, -3 Package) | 0.28 | W | ||
| Cathode Voltage | 35 | V | ||
| Continuous Cathode Current | -30 | 30 | mA | |
| Reference Input Current | -0.05 | 3 | mA | |
| Initial Tolerance (LMV431B) | 0.5% | |||
| Operation Current | 55 | 80 | µA | |
| Dynamic Output Impedance | 0.25 | 0.4 | Ω |
Key Features
- Low-Voltage Operation: Adjustable from 1.24 V to 30 V.
- High Precision: 0.5% initial tolerance for the LMV431B.
- Temperature Compensated: Suitable for industrial temperature range with a temperature coefficient of 39 PPM/°C for the LMV431AI.
- Low Operation Current: Typically 55 µA.
- Low Output Impedance: 0.25 Ω.
- Fast Turn-On Response.
- Low Cost.
Applications
- Shunt Regulator.
- Series Regulator.
- Current Source or Sink.
- Voltage Monitor.
- Error Amplifier in 3 V off-line switching regulators.
- Low Dropout N-Channel Series Regulator.
- Voltage Detector.
Q & A
- What is the operating voltage range of the LMV431BIMF/NOPB? The LMV431BIMF/NOPB operates from 1.24 V to 30 V.
- What is the initial tolerance of the LMV431BIMF/NOPB? The initial tolerance is 0.5%.
- What are the typical operating temperatures for the LMV431BIMF/NOPB? The industrial version operates from -40°C to 85°C, while the commercial version operates from 0°C to 70°C.
- What is the maximum cathode current for the LMV431BIMF/NOPB? The maximum cathode current is 30 mA.
- What is the dynamic output impedance of the LMV431BIMF/NOPB? The dynamic output impedance is between 0.25 Ω and 0.4 Ω.
- What are some common applications of the LMV431BIMF/NOPB? Common applications include shunt regulators, series regulators, current sources or sinks, voltage monitors, and error amplifiers in switching regulators.
- Is the LMV431BIMF/NOPB RoHS compliant? Yes, the LMV431BIMF/NOPB is RoHS compliant.
- What are the package options for the LMV431BIMF/NOPB? The device is available in SOT-23 packages.
- What is the storage temperature range for the LMV431BIMF/NOPB? The storage temperature range is from -65°C to 150°C.
- Is the LMV431BIMF/NOPB still in production? No, the LMV431BIMF/NOPB has been discontinued by Texas Instruments.
