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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.4% 20CLCC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-CLCC
- Supplier Device Package：20-LCCC (8.89x8.89)
- Grade：-
- Qualification：-
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Overview
The TL1431MFK is a precision programmable shunt voltage reference manufactured by Texas Instruments. It features an adjustable output voltage range from 2.5 V to 36 V, set via two external resistors. The device guarantees temperature stability over the operating range and supports a sink current capability of 1 mA to 100 mA. It exhibits a typical dynamic impedance of 0.2 Ω and offers initial accuracy of 0.4%. The component is housed in a TO-92-3 through-hole package.
Feature Summary
- Precision programmable reference with guaranteed thermal stability
- Adjustable output voltage using two external resistors
- Wide operating current range from 1 mA to 100 mA
Applications
- Precision power supply regulation
- Voltage monitoring circuits
- Battery charging control systems
Procurement Notes
Verify the specific suffix MFK against the official Texas Instruments datasheet to confirm the TO-92-3 package configuration. Ensure the ordering information matches the exact part number for correct lead times and availability. Cross-reference with authorized distributors to validate authenticity and compliance with RoHS standards before procurement.
Selection Notes
Select this component when a through-hole adjustable shunt reference is required for high-precision applications. The TO-92-3 package facilitates easy prototyping and PCB mounting. Consider the 0.4% initial accuracy and low dynamic impedance for stable performance in sensitive analog circuits requiring reliable voltage referencing.
Part Context
The TL1431 series represents a family of precision programmable references known for their stability and wide operating current range. The TL1431MFK variant specifically utilizes the TO-92-3 package, distinguishing it from surface-mount options like SOIC or SOT packages within the same functional family. This form factor supports traditional through-hole assembly techniques.
Replacement Considerations
Compatible substitutes include other TL1431 variants such as TL1431QDR or TL1431IDR, provided the package type difference is accommodated in the design. Direct pin-to-pin replacements may require adapter solutions due to the package change from TO-92-3 to SOIC.
