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Product Detailed Parameters
- Description：IC VREF SHUNT 2.5V SOT23-3
- Series：-
- Mfr：STMicroelectronics
- Package：Bulk
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The TL432BL3T is an adjustable shunt voltage reference manufactured by STMicroelectronics, housed in a compact SOT-23 surface-mount package. It provides a programmable output voltage ranging from 2.5 V to 36 V using two external resistors. The device operates with a cathode current range of 1 mA to 100 mA and features a typical dynamic impedance of 0.22 Ω. This specific variant carries the 'B' suffix, indicating a tighter voltage precision specification compared to standard versions.
Feature Summary
- Adjustable output voltage capability between 2.5 V and 36 V
- High temperature stability across the operating range
- Wide sink current capability for flexible circuit design
Applications
- Precision power supply regulation
- Portable equipment voltage monitoring
- Battery-operated system references
Procurement Notes
Verify the complete part number including the BL3T suffix to ensure correct packaging and precision grade. Confirm that the required voltage tolerance aligns with the B-grade specifications. Ensure the application environment remains within the specified thermal limits for reliable long-term operation.
Selection Notes
Select this component when a stable, low-cost reference is needed for space-constrained designs. The SOT-23 package suits high-density PCB layouts. Consider the B-grade precision if tighter voltage accuracy is required over temperature variations compared to standard variants.
Part Context
This device belongs to the TL431/TL432 family of programmable shunt regulators. These components are widely used as voltage references in switching power supplies and linear regulators. The TL432 variant offers similar functionality but may differ in specific electrical characteristics or package options depending on the manufacturer's designation.
Replacement Considerations
Compatible substitutes include the TL431AIDBZR and LM4040 series devices. Verify pin compatibility and electrical parameters such as dynamic impedance and temperature coefficient before substitution.
