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Product Detailed Parameters
- Description：IC VREF SHUNT 1% TO92-3
- Series：-
- Mfr：Texas Instruments
- 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 ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The LM4040D30ILPRE3 is a precision micropower shunt voltage reference manufactured by Texas Instruments. It provides a fixed output voltage of 3V with an initial accuracy of ±1%. The device operates within a temperature range of -40°C to +85°C and features a temperature coefficient of 150 ppm/°C. It supports a maximum cathode current of 15 mA and draws a typical operating current of 82 µA. The component is housed in a TO-92-3 (TO-226AA) through-hole package.
Feature Summary
- Provides stable fixed voltage reference for precision applications
- Micropower operation suitable for battery-powered systems
- Shunt regulation design for simple circuit integration
Applications
- Portable instrumentation requiring low power consumption
- Battery-operated measurement devices
- Precision data acquisition systems
Procurement Notes
Verify the specific suffix 'E3' indicates lead-free compliance and RoHS status as per manufacturer documentation. Confirm the TO-92-3 package type matches your PCB footprint requirements. Ensure the 3V output voltage aligns with your system's reference needs. Check for any recent product change notices regarding manufacturing location or materials.
Selection Notes
Select this component when a fixed 3V reference is required in a through-hole configuration. The ±1% accuracy and 150 ppm/°C temperature coefficient define its precision class. Consider the 15 mA maximum current capability for load regulation requirements. Compare against other LM4040 variants if different voltages, accuracies, or packages are needed.
Part Context
This part belongs to the LM4040 series of micropower shunt voltage references from Texas Instruments. The series offers various fixed output voltages and accuracy grades. The 'D' designation typically indicates ±1% initial accuracy. The ILPR suffix denotes the TO-92-3 through-hole package. This family is designed for cost-sensitive, space-constrained applications requiring reliable voltage referencing.
Replacement Considerations
LM4040D30ILPR is the non-lead-free equivalent. LM4040BIM3-4.1 is a surface-mount alternative with different voltage and accuracy. Verify pinout compatibility and thermal characteristics when substituting.
