Overview
The LM4050BEM3-2.5/NOPB is a precision micropower shunt voltage reference produced by Texas Instruments. This component is designed for space-critical applications and is available in a sub-miniature SOT-23 surface-mount package. It is part of the LM4050-N series, which offers several fixed reverse breakdown voltages, including 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V. The LM4050BEM3-2.5/NOPB specifically provides a 2.5 V reference voltage with high accuracy and stability over a wide range of operating temperatures and currents.
Key Specifications
| Parameter | Test Conditions | MIN | TYP | MAX | Unit |
|---|---|---|---|---|---|
| Reverse Breakdown Voltage | IR = 100 μA | 2.5 | 2.5 | 2.5 | V |
| Output Voltage Tolerance (A Grade, 25°C) | ±0.1% | % | |||
| Minimum Operating Current | TA = TJ = 25°C | 60 | 74 | 80 | μA |
| Maximum Operating Current | 15 | mA | |||
| Industrial Temperature Range | -40 | 85 | °C | ||
| Extended Temperature Range | -40 | 125 | °C | ||
| Average Reverse Breakdown Voltage Temperature Coefficient | IR = 100 μA, TA = TJ = 25°C | ±50 | ppm/°C | ||
| Output Noise (10 Hz to 10 kHz) | 41 | μVrms |
Key Features
- Small Package: Available in a sub-miniature SOT-23 surface-mount package, ideal for space-critical applications.
- No Output Capacitor Required: The design eliminates the need for an external stabilizing capacitor, ensuring stability with any capacitive load.
- Fixed Reverse Breakdown Voltages: Offers fixed reverse breakdown voltages of 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V.
- High Accuracy: Output voltage tolerance of ±0.1% (A grade) at 25°C, ensuring high accuracy.
- Low Output Noise: Typical output noise of 41 µVrms from 10 Hz to 10 kHz.
- Wide Operating Current Range: Operates over a wide current range from 60 µA to 15 mA.
- Temperature Stability: Stable over industrial and extended temperature ranges (-40°C to 125°C), with a low temperature coefficient of ±50 ppm/°C.
- AEC-Q100 Qualified: The LM4050-N-Q1 version is AEC-Q100 Grade 1 qualified, suitable for automotive applications.
Applications
The LM4050BEM3-2.5/NOPB is suitable for a variety of applications where precise voltage referencing is required, including:
- Power Management Systems: Used in voltage regulation and monitoring circuits due to its high accuracy and stability.
- Automotive Systems: AEC-Q100 qualified versions are ideal for automotive applications requiring reliable voltage referencing over a wide temperature range.
- Industrial Control Systems: Utilized in industrial control and measurement systems where precise voltage references are essential.
- Consumer Electronics: Suitable for use in consumer electronics where space is limited and high accuracy is required.
Q & A
- What is the reverse breakdown voltage of the LM4050BEM3-2.5/NOPB?
The reverse breakdown voltage of the LM4050BEM3-2.5/NOPB is 2.5 V.
- What is the output voltage tolerance of the LM4050BEM3-2.5/NOPB at 25°C?
The output voltage tolerance is ±0.1% (A grade) at 25°C.
- Does the LM4050BEM3-2.5/NOPB require an external stabilizing capacitor?
No, the design eliminates the need for an external stabilizing capacitor.
- What is the operating current range of the LM4050BEM3-2.5/NOPB?
The operating current range is from 60 µA to 15 mA.
- What are the temperature ranges for the LM4050BEM3-2.5/NOPB?
The component operates over an industrial temperature range of -40°C to 85°C and an extended temperature range of -40°C to 125°C.
- Is the LM4050BEM3-2.5/NOPB AEC-Q100 qualified?
The LM4050-N-Q1 version is AEC-Q100 Grade 1 qualified, but the specific LM4050BEM3-2.5/NOPB is not explicitly stated as AEC-Q100 qualified. However, it can be used in automotive applications if the Q1 version is specified.
- What is the typical output noise of the LM4050BEM3-2.5/NOPB?
The typical output noise is 41 µVrms from 10 Hz to 10 kHz.
- What package type does the LM4050BEM3-2.5/NOPB come in?
The component comes in a SOT-23 surface-mount package.
- What are some common applications for the LM4050BEM3-2.5/NOPB?
Common applications include power management systems, automotive systems, industrial control systems, and consumer electronics.
- What is the average reverse breakdown voltage temperature coefficient of the LM4050BEM3-2.5/NOPB?
The average reverse breakdown voltage temperature coefficient is ±50 ppm/°C.
- Can the LM4050BEM3-2.5/NOPB tolerate capacitive loads?
Yes, the LM4050BEM3-2.5/NOPB can tolerate capacitive loads without the need for an external stabilizing capacitor.
