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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.4% 8SO
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-20°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The TL1431CDT is an adjustable shunt voltage reference manufactured by STMicroelectronics. It operates within a supply voltage range of 2.5 V to 36 V and supports a cathode current range from 1 mA to 100 mA. The device features a typical dynamic impedance of 0.2 Ω and offers initial precision options including 0.4% and 0.25%. It is housed in an 8-pin SOIC surface-mount package with dimensions of 5 x 4 x 1.25 mm. The component functions reliably across an operating temperature range of -20 °C to +70 °C.
Feature Summary
- Adjustable output voltage settable between 2.5 V and 36 V using two external resistors
- Wide sink current capability ranging from 1 mA to 100 mA
- Guaranteed temperature stability over the entire operating temperature range
Applications
- Precision power supplies
- Remote battery sensing circuits
- Linear regulators
Procurement Notes
Verify the specific suffix 'CDT' against the official STMicroelectronics datasheet to confirm the exact tolerance grade, temperature range, and packaging configuration. Ensure the ordering code matches the required initial precision and thermal specifications for the target application environment.
Selection Notes
Select this component when an adjustable shunt reference is required with a maximum output voltage of 36 V. Consider the 8-pin SOIC package for surface-mount assembly needs. Evaluate the 0.4% or 0.25% precision options based on circuit accuracy requirements and verify compatibility with the intended operating temperature range.
Part Context
The TL1431 series represents a family of adjustable shunt voltage references designed for high-performance applications. This specific part belongs to the broader TL1431 lineup, which provides stable reference voltages suitable for regulating power systems. The device serves as a key component in feedback loops for switching and linear power converters.
Replacement Considerations
Check for direct pin-compatible alternatives such as the TL1431ACDT or TL1431CL5T if different package styles or precision grades are needed. Verify that any substitute maintains the same 2.5 V to 36 V output range and 100 mA sink current capability.
