Overview
The LM4040D30QDBZRG4 is a precision micropower shunt voltage reference produced by Texas Instruments. This component is part of the LM4040 series, known for its high accuracy and stability. The LM4040D30QDBZRG4 specifically offers a fixed output voltage of 3V, making it suitable for a variety of applications requiring precise voltage referencing.
It is packaged in a space-saving SOT-23-3 package and is characterized for operation over an extended ambient temperature range of –40°C to 125°C. This device is ideal for portable and industrial applications where low power consumption and high precision are critical.
Key Specifications
| Parameter | Test Conditions | Unit | MIN | TYP | MAX |
|---|---|---|---|---|---|
| Reverse Breakdown Voltage (VZ) | IZ = 100 μA, 25°C | V | 3 | 3 | 3 |
| Reverse Breakdown Voltage Tolerance (ΔVZ) | IZ = 100 μA, 25°C | mV | –15 | 0 | 15 |
| Minimum Cathode Current (IZ,min) | 25°C | μA | 45 | 75 | 80 |
| Average Temperature Coefficient (αVZ) | IZ = 1 mA, 25°C | ppm/°C | ±15 | ±15 | ±150 |
| Operating Temperature Range (TA) | °C | –40 | 125 | ||
| Package Type | SOT-23-3 (DBZ) |
Key Features
- Fixed output voltages of 3V with tight output tolerances and low temperature coefficient.
- No external capacitors required for operation; stable with all capacitive loads.
- Low dynamic impedance, low noise, and low temperature coefficient to maintain stable output voltage over a wide range of operating currents and temperatures.
- Available in D grade with 1.0% initial accuracy and 150 ppm/°C temperature coefficient.
- Minimum cathode current of 45 μA (typical) and maximum of 80 μA.
- Space-saving SOT-23-3 package.
- Operates over an extended ambient temperature range of –40°C to 125°C.
Applications
- Portable electronics: Ideal for battery-powered devices due to its low power consumption.
- Industrial control systems: Suitable for applications requiring precise voltage referencing over a wide temperature range.
- Medical devices: Used in medical equipment where high accuracy and stability are crucial.
- Aerospace and defense: Applicable in systems that require reliable and precise voltage references.
- Automotive systems: Used in automotive electronics for stable voltage referencing.
Q & A
- What is the output voltage of the LM4040D30QDBZRG4?
The output voltage of the LM4040D30QDBZRG4 is 3V.
- What is the operating temperature range of the LM4040D30QDBZRG4?
The operating temperature range is –40°C to 125°C.
- Does the LM4040D30QDBZRG4 require external capacitors for operation?
No, it does not require external capacitors for operation and is stable with all capacitive loads.
- What is the minimum cathode current of the LM4040D30QDBZRG4?
The minimum cathode current is 45 μA (typical).
- What is the package type of the LM4040D30QDBZRG4?
The package type is SOT-23-3 (DBZ).
- What are the key features of the LM4040D30QDBZRG4 in terms of accuracy and temperature coefficient?
The D grade offers 1.0% initial accuracy and a 150 ppm/°C temperature coefficient.
- Is the LM4040D30QDBZRG4 suitable for portable applications?
- What are some common applications of the LM4040D30QDBZRG4?
Common applications include portable electronics, industrial control systems, medical devices, aerospace and defense, and automotive systems.
- How does the LM4040D30QDBZRG4 maintain stability over a wide range of operating currents and temperatures?
It maintains stability through its low dynamic impedance, low noise, and low temperature coefficient.
- What is the significance of the fuse and Zener-zap reverse breakdown voltage trim in the LM4040 series?
The fuse and Zener-zap reverse breakdown voltage trim during wafer sort allows for four output voltage tolerances, offering flexibility in choosing the best cost-to-performance ratio.
