Overview
The LM4050CEM3X-2.5/NOPB is a precision micropower shunt voltage reference produced by Texas Instruments. This device is part of the LM4050 series, which offers high accuracy and stability in a compact SOT-23 package. It is designed for space-constrained applications and eliminates the need for external feedback resistors. The LM4050CEM3X-2.5/NOPB provides a fixed reverse breakdown voltage of 2.5V with a tolerance of ±0.1% (A grade) at 25°C, ensuring precise voltage regulation.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Reverse Breakdown Voltage | IR = 100 μA | 2.500 | - | 2.500 | V |
| Output Voltage Tolerance (A Grade, 25°C) | - | - | ±0.1% | - | % |
| Minimum Operating Current | TA = TJ = 25°C | 60 | - | 80 | μA |
| Maximum Operating Current | - | - | 15 | mA | |
| Average Reverse Breakdown Voltage Temperature Coefficient | IR = 100 μA, TA = TJ = 25°C | - | ±20 | ±50 | ppm/°C |
| Industrial Temperature Range | - | -40 | - | 85 | °C |
| Extended Temperature Range | - | -40 | - | 125 | °C |
| Low Output Noise (10 Hz to 10 kHz) | - | - | 41 | μVrms |
Key Features
- High Precision: The LM4050CEM3X-2.5/NOPB offers voltage tolerance accuracies of ±0.1% (A grade) at 25°C.
- Compact Package: Available in the SOT-23 package, ideal for space-constrained applications.
- No External Capacitor Required: The device is designed to be stable with any capacitive load without the need for an external stabilizing capacitor.
- Wide Operating Current Range: Operates from 60 μA to 15 mA.
- Low Temperature Coefficient: Ensures stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents.
- Bandgap Reference Temperature Drift Curvature Correction: Provides low dynamic impedance and stable reverse breakdown voltage.
Applications
- Portable, Battery-Powered Equipment: Ideal for devices requiring precise voltage regulation in compact designs.
- Data Acquisition Systems: Ensures accurate voltage references in data acquisition applications.
- Instrumentation: Suitable for various instrumentation applications requiring high precision voltage references.
- Process Control: Used in process control systems where precise voltage regulation is critical.
- Energy Management: Helps in managing energy efficiently in various systems.
- Product Testing: Useful in testing and calibration of electronic products.
- Automotive: Applicable in automotive systems requiring precise voltage references.
- Precision Audio Components: Ensures high-quality audio performance by providing stable voltage references.
Q & A
- What is the primary function of the LM4050CEM3X-2.5/NOPB?
The LM4050CEM3X-2.5/NOPB is a precision micropower shunt voltage reference, acting as a high-precision Zener diode to regulate voltage between its cathode and anode.
- What are the available fixed reverse breakdown voltages for the LM4050 series?
The LM4050 series offers fixed reverse breakdown voltages of 2.048V, 2.5V, 4.096V, 5V, 8.192V, and 10V.
- What is the minimum operating current for the LM4050CEM3X-2.5/NOPB?
The minimum operating current for the LM4050CEM3X-2.5/NOPB is 60 μA.
- What is the maximum operating current for the LM4050CEM3X-2.5/NOPB?
The maximum operating current for the LM4050CEM3X-2.5/NOPB is 15 mA.
- Does the LM4050CEM3X-2.5/NOPB require an external stabilizing capacitor?
No, the LM4050CEM3X-2.5/NOPB does not require an external stabilizing capacitor as it is designed to be stable with any capacitive load.
- What is the temperature range for the industrial and extended temperature versions of the LM4050CEM3X-2.5/NOPB?
The industrial temperature range is –40°C to 85°C, and the extended temperature range is –40°C to 125°C.
- What is the output voltage tolerance for the A grade of the LM4050CEM3X-2.5/NOPB at 25°C?
The output voltage tolerance for the A grade of the LM4050CEM3X-2.5/NOPB at 25°C is ±0.1%.
- What is the typical low output noise of the LM4050CEM3X-2.5/NOPB?
The typical low output noise of the LM4050CEM3X-2.5/NOPB is 41 μVrms (10 Hz to 10 kHz).
- What are some common applications of the LM4050CEM3X-2.5/NOPB?
Common applications include portable battery-powered equipment, data acquisition systems, instrumentation, process control, energy management, product testing, automotive systems, and precision audio components.
- What package type is the LM4050CEM3X-2.5/NOPB available in?
The LM4050CEM3X-2.5/NOPB is available in the SOT-23 package.
