10V shunt reference in a small SOT-23-3 — what it delivers
The Texas Instruments TL4050C10IDBZR is a precision shunt voltage reference delivering a fixed 10V output with ±0.5% initial tolerance. It operates from -40°C to 85°C, making it suitable for industrial temperature environments — think motor drives, outdoor telecom line cards, or factory automation analog input stages that need a stable local reference.
Shunt topology — design implications
As a shunt reference, the TL4050C10IDBZR behaves like a Zener diode — it requires a series resistor from the supply to set the bias current. The cathode current range runs from 103 µA minimum up to 15 mA maximum. That 103 µA floor is the minimum current to maintain regulation; below it the output voltage drifts. Design the bias resistor so the current stays above 103 µA across the full supply and load range, and stays under 15 mA to avoid exceeding the package dissipation in SOT-23-3.
Lifecycle and sourcing reality
The TL4050C10IDBZR is listed as Active by Texas Instruments with ROHS3 compliance. It is an in-production part, so new designs can commit it without LTB risk.