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Product Detailed Parameters
- Description：IC VREF SHUNT 1% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：4.096V
- Current - Output：15 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The LM4040DIM3-4.1 is a precision micropower shunt voltage reference from Texas Instruments, offering a fixed reverse breakdown voltage of 4.096 V. It operates within an industrial temperature range of -40°C to +85°C and features a D-grade initial tolerance of ±1%. The device has a maximum temperature coefficient of 150 ppm/°C and supports a wide operating current range from 68 μA to 15 mA. Packaged in a compact SOT-23 (SC-59) surface-mount format, it eliminates the need for external stabilizing capacitors while tolerating capacitive loads.
Feature Summary
- Eliminates the need for external stabilizing capacitors while ensuring stability with any capacitive load
- Utilizes bandgap reference temperature drift curvature correction for stable accuracy across temperatures
- Employs fuse and Zener-zap reverse breakdown voltage trim during wafer sort for high precision
Applications
- Portable, battery-powered equipment
- Data acquisition systems
- Instrumentation
- Process controls
- Precision audio components
Procurement Notes
Verify the specific ordering suffix against the manufacturer's latest documentation to confirm package type, temperature grade, and tolerance class. Ensure compatibility with your system's power supply constraints and thermal management requirements before finalizing procurement decisions.
Selection Notes
Select this component when space-critical applications require a precise, low-noise voltage reference without external compensation. Consider the D-grade tolerance and 150 ppm/°C temperature coefficient against your circuit's accuracy needs. Verify that the minimum operating current meets your biasing design at the lowest expected ambient temperature.
Part Context
This part belongs to the LM4040-N family of precision micropower shunt voltage references. The series provides various fixed reverse breakdown voltages including 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V. It is available in sub-miniature packages such as SC70, SOT-23, and TO-92, designed for easy integration into space-constrained designs.
Replacement Considerations
LM4040CIM3-4.1/NOPB
FAQ
Does the LM4040DIM3-4.1 require an output capacitor for stability?
No, the advanced design of the LM4040-N eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load.
What is the minimum operating current for the 4.1-V version?
The minimum operating current for the LM4040-N-4.1 is 68 μA at 25°C, increasing slightly at temperature extremes.
