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Product Detailed Parameters
- Description：IC VREF SHUNT 2% TO92-3
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：1.235V
- Voltage - Output (Max)：-
- Current - Output：20 mA
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The LM385LPE3-1-2 is a micropower shunt voltage reference from Texas Instruments, providing a fixed output of 1.235 V. It features an initial accuracy of ±2% and a temperature coefficient of 20 ppm/°C. The device operates within a junction temperature range of -55°C to +125°C and supports a maximum cathode current of 20 mA with a minimum operating current of 15 µA. Packaged in a TO-226AA (TO-92) through-hole format, it includes lead-free plating compliant with RoHS standards.
Feature Summary
- Provides a stable 1.235 V reference voltage suitable for precision applications
- Operates over an extended industrial temperature range up to 125°C
- Features low power consumption with a minimum operating current of 15 µA
Applications
- Portable battery-powered instrumentation
- Data acquisition systems
- Microprocessor supervisory circuits
Procurement Notes
Verify the specific suffix 'E3' indicates lead-free construction and environmental compliance when sourcing. Confirm package integrity as the TO-226AA form factor requires appropriate handling during assembly. Cross-reference datasheet revisions to ensure parameter consistency with current production batches.
Selection Notes
Select this component for designs requiring a low-cost, high-stability reference in space-constrained through-hole layouts. The 1.235 V output allows direct interfacing with ADCs without level shifting. Ensure circuit design accommodates the 20 mA maximum current limit to prevent thermal overload.
Part Context
This part belongs to the LM385 family of micropower shunt references. It serves as a cost-effective alternative to bandgap references in applications where moderate accuracy suffices. The E3 suffix denotes environmental compliance, distinguishing it from older non-compliant variants within the same electrical specification.
Replacement Considerations
- LM385LP-1-2
- LM385BLP-1-2
FAQ
What is the maximum operating junction temperature?
The maximum operating junction temperature is +125°C.
Does the E3 suffix change the electrical performance?
No, the E3 suffix indicates lead-free packaging and RoHS compliance; electrical parameters remain identical to the standard LM385LP-1-2.
