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Product Detailed Parameters
- Description：IC VREF SHUNT 0.1% SC70-5
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：5V
- Current - Output：15 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Supplier Device Package：SC-70-5
- Grade：-
- Qualification：-
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Overview
The LM4040A50IDCKR is a precision micropower shunt voltage reference from Texas Instruments. It provides a fixed output voltage of 5V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 100ppm/°C. The device operates within a cathode current range of 45μA to 15mA and functions over an ambient temperature range of –40°C to 85°C. It is housed in a space-saving SC-70 (SOT-353) package.
Feature Summary
- Maintains stable output voltage across wide operating currents and temperatures due to low dynamic impedance and low noise characteristics.
- Operates without external capacitors and remains stable with all capacitive loads, simplifying circuit design.
- Utilizes fuse and Zener-zap reverse breakdown voltage trim during wafer sort to achieve tight output tolerances.
Applications
- Data-Acquisition Systems
- Energy Infrastructure
- Analog Input Module
- Field Transmitters
Procurement Notes
Verify the specific suffix 'DCKR' corresponds to the SC-70-5 surface-mount package and tape-and-reel delivery format. Confirm that the 'I' designation aligns with the required industrial temperature range of –40°C to 85°C for your application environment. Ensure compatibility with standard SC-70 footprints during PCB layout.
Selection Notes
Select this component when high precision (±0.1%) is required alongside low power consumption in compact designs. It is suitable for applications needing stability with varying capacitive loads without additional compensation components. Consider the SC-70 package dimensions if board space is limited compared to larger SOT-23 or TO-92 options.
Part Context
This part belongs to the LM4040 series of shunt voltage references, which offers various fixed output voltages including 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V. The series includes A, B, C, and D grades with differing accuracies and temperature coefficients, packaged in SOT-23, SC-70, and TO-92 formats.
Replacement Considerations
LM4040B50IDCKR
FAQ
Does the LM4040A50IDCKR require an output capacitor for stability?
No, the device is stable with all capacitive loads and does not require an external output capacitor for operation.
What is the minimum cathode current required for proper operation?
The typical minimum cathode current is 45μA at 25°C, ensuring the device maintains regulation within its specified parameters.
