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Product Detailed Parameters
- Description：IC VREF SHUNT 3V SOT23-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：3V
- Voltage - Output (Max)：-
- Current - Output：15 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM4040D30QFTA is an automotive-compliant precision micropower shunt voltage reference manufactured by Diodes Incorporated. It provides a fixed 3.0V output with a ±1% initial tolerance at +25°C. The device operates within a wide current range of 60µA to 15mA and maintains stability across an extended temperature range from -40°C to +125°C. Packaged in a compact SOT-23 surface-mount format, it features a maximum temperature coefficient of 100 ppm/°C and low output noise.
Feature Summary
- Automotive compliant with AEC-Q100 qualification and PPAP capability for specific change control requirements
- Designed for high capacitive load tolerance without requiring external output capacitors
- Utilizes a small SOT-23 package suitable for space-constrained applications
- Operates with extremely low power consumption suitable for battery-powered designs
Applications
- Automotive reference voltages
- Automotive data acquisition systems
Procurement Notes
Verify the component matches the exact automotive grade specification required for your application. Confirm that the manufacturer utilizes IATF 16949 certified facilities as stated in the datasheet. Ensure the ordering suffix corresponds to the tape and reel packaging configuration needed for your assembly line processes.
Selection Notes
Select this part when a stable 3.0V reference is needed in automotive environments. The D-grade offers a balance of cost and performance with 1% accuracy. Consider the minimum operating current limits when designing the biasing resistor network to ensure regulation under all load conditions.
Part Context
This component belongs to the LM4040Q family of bandgap circuits designed specifically for automotive applications. It serves as a pin-for-pin compatible alternative to industry standard commercial voltage references while meeting stricter automotive quality and reliability standards.
Replacement Considerations
LM4040D30TA (Commercial Grade)
FAQ
How should Pin 3 be handled in the SOT-23 package?
Pin 3 must be left floating or connected to Pin 2 due to the die attachment resulting in an electrical contact between these pins.
What is the typical output noise level?
The typical output noise voltage is 45µVRMS measured over the frequency range of 10Hz to 10kHz.
