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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.25% 8SO
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- 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 TL1431ACD is an adjustable shunt voltage reference manufactured by STMicroelectronics, housed in an 8-SOIC surface-mount package. It provides a programmable output voltage ranging from 2.5 V to 36 V, set via two external resistors. The device features a typical dynamic impedance of 0.2 Ω and supports a cathode current range from 1 mA to 100 mA. Initial accuracy is specified at ±0.4%, with a temperature coefficient of 90 ppm/°C. It operates within a commercial temperature range of -20°C to +70°C.
Feature Summary
- Adjustable output voltage capability between 2.5 V and 36 V using external resistors
- Wide operating current range supporting sink currents from 1 mA to 100 mA
- Guaranteed temperature stability over the entire commercial operating range
Applications
- Precision power supply regulation
- Voltage monitoring circuits
- Linear regulator feedback loops
Procurement Notes
Verify the specific suffix against official datasheets to confirm tolerance and package variations. Confirm RoHS compliance status for the specific manufacturing batch. Ensure the ordering code matches the required initial accuracy and thermal specifications for the target application environment.
Selection Notes
Select this component when a stable, adjustable reference is needed in an 8-pin surface-mount format. Consider the ±0.4% initial accuracy and 90 ppm/°C temperature coefficient for precision requirements. Verify that the 1 mA to 100 mA current range meets the circuit's biasing needs.
Part Context
Part of the TL1431 series of adjustable shunt references. This series offers high stability and wide operating current ranges. The TL1431ACD specifically denotes the 8-SOIC package variant with ±0.4% accuracy, distinct from through-hole or automotive-grade versions.
Replacement Considerations
Check for pin-compatible alternatives such as the TL1431CD for standard tolerance variants. Verify electrical equivalence for other manufacturers' adjustable shunt references if sourcing constraints require substitution.
