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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% SOT23-5
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.495V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The TL431BCDBVRG4 is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.495 V to 36 V and features an initial accuracy of 0.5%. The device supports a maximum cathode current of 100 mA and has a minimum operating current of 600 µA. It utilizes a SOT-23-5 surface-mount package and functions across a temperature range of 0°C to +70°C.
Feature Summary
- Provides adjustable reference voltage output for precise circuit regulation
- Delivers high initial accuracy for stable performance in sensitive applications
- Operates as a three-terminal shunt regulator with low dynamic impedance
Applications
- Precision voltage references in power supply circuits
- On-line isolation amplifiers
- Remote sense circuits
- Programmable output controllers
Procurement Notes
Verify the specific suffix 'RG4' corresponds to the RoHS-compliant, lead-free variant with tape-and-reel packaging. Confirm the SOT-23-5 package type matches the target PCB footprint. Ensure the commercial temperature grade (0°C to +70°C) meets the operational requirements of the final assembly environment.
Selection Notes
Select this component when a compact, adjustable shunt regulator with 0.5% accuracy is required. The SOT-23-5 package offers space efficiency compared to larger packages. Consider the 0°C to +70°C operating range; if extended industrial or automotive temperatures are needed, alternative variants such as those with -40°C to +125°C ratings should be evaluated.
Part Context
This part belongs to the TL431 family of programmable shunt regulators from Texas Instruments. These devices function similarly to Zener diodes but offer superior performance characteristics, including lower dynamic impedance and higher thermal stability. The family is widely used in feedback loops for switching power supplies and linear regulators.
Replacement Considerations
The TL431BCDBVR is a compatible non-RoHS version within the same series. Other pin-compatible alternatives include the TL431ACDBVR and TL431CDBVR, which share the same package and basic electrical topology.
