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Product Detailed Parameters
- Description：IC VREF SHUNT 1.5% TO92-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Current - Output：20 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 LM285LPRE3-2-5 is a shunt voltage reference IC manufactured by Texas Instruments, featuring a fixed output of 2.5V with an initial accuracy of ±1.5%. It operates within a temperature range of -40°C to +85°C and utilizes a TO-92-3 through-hole package. The device supports a maximum shunt current of 20 mA and a minimum cathode current of 20 µA, with a typical temperature coefficient of 20 ppm/°C.
Feature Summary
- Provides a stable 2.5V reference voltage via shunt regulation topology
- Ensures precision performance with ±1.5% initial accuracy tolerance
- Operates reliably across extended industrial temperature ranges from -40°C to +85°C
Applications
- Portable battery-powered instrumentation requiring low power consumption
- Data acquisition systems needing precise analog-to-digital conversion references
- Microprocessor-based circuits for supply monitoring and reset generation
Procurement Notes
Verify the RE3 suffix indicates lead-free compliance and RoHS3 conformity during procurement. Confirm the TO-92-3 package variant matches the design requirements. Ensure the ±1.5% accuracy class meets the specific circuit tolerance needs. Check for any recent PCN updates regarding material or assembly changes before finalizing orders.
Selection Notes
Select this component when a fixed 2.5V reference is required in a cost-effective through-hole package. It is suitable for applications where moderate accuracy suffices and space constraints allow for TO-92 dimensions. Consider the 20 µA minimum operating current for low-power biasing designs. Evaluate thermal management if operating near the upper temperature limit.
Part Context
This part belongs to the LM285 family of micro-power shunt voltage references. It serves as a reliable alternative to Zener diodes, offering superior stability and lower noise characteristics. The LM285 series is widely used in general-purpose electronic designs requiring a dependable voltage基准 source.
Replacement Considerations
LM285LP-2-5
FAQ
What is the minimum operating current for the LM285LPRE3-2-5?
The minimum cathode current required for proper regulation is 20 µA.
Does the LM285LPRE3-2-5 support surface mount installation?
No, it is designed for through-hole mounting in a TO-92-3 package.
