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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% TO92-3
- Series：-
- Mfr：Texas Instruments
- Package：Bulk,Bulk
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：18 V
- Current - Output：70 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The TLVH431BQLPE3 is a low-voltage adjustable precision shunt regulator manufactured by Texas Instruments. It operates within an input voltage range of 2.5 V to 18 V and provides an adjustable output voltage from 1.24 V to 18 V. The device features an initial accuracy of ±1% and a maximum temperature coefficient of 100 ppm/°C. It supports a cathode current range from 100 µA to 70 mA, with a maximum operating temperature of +125°C and a minimum of -40°C. Packaged in a TO-92-3 through-hole housing, it is designed for automotive applications.
Feature Summary
- Provides precise voltage regulation with ±1% initial accuracy over the full operating temperature range.
- Designed for low-voltage systems with an operational input range extending down to 2.5 V.
- Automotive-grade qualification ensures reliability in demanding environmental conditions up to 125°C.
Applications
- Battery-operated equipment requiring stable reference voltages
- Switch-mode power supplies
- Data acquisition systems
Procurement Notes
Verify component authenticity against official Texas Instruments documentation. Confirm that the specific suffix indicates the correct package type and automotive grade. Check for end-of-life status or obsolescence notices prior to finalizing procurement decisions to ensure long-term supply chain stability.
Selection Notes
Select this component when a low-voltage adjustable shunt regulator with high precision is required for automotive environments. Ensure the design accommodates the 100 µA minimum cathode current and the 70 mA maximum sink capability. Verify that the TO-92-3 package fits the mechanical constraints of the target PCB layout.
Part Context
This part belongs to the TLVH431 family of low-voltage adjustable precision shunt regulators. It serves as a robust alternative to standard TL431 devices in applications where lower operating voltages are necessary. The automotive qualification distinguishes it from commercial variants within the broader Texas Instruments voltage reference portfolio.
Replacement Considerations
Public confirmed substitute part numbers include TLVH431BQLPR.
FAQ
What is the minimum operating cathode current for the TLVH431BQLPE3?
The device requires a minimum cathode current of 100 µA to maintain proper regulation and performance specifications.
Is the TLVH431BQLPE3 suitable for automotive applications?
Yes, the 'QL' suffix indicates that this component is qualified for automotive applications and meets relevant reliability standards.
