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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% SOT23-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：18 V
- Current - Output：70 mA
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The TLVH431BMDBZREP is an automotive-grade adjustable precision shunt regulator from the TLVH431B series by Texas Instruments. It operates within a voltage range of 1.24 V to 18 V with a typical initial accuracy of 0.5%. The device features a maximum temperature coefficient of 161 PPM/C and supports a maximum cathode current of 70 mA. Designed for surface-mount applications, it utilizes an SOT-23-3 package and functions reliably across an extended industrial temperature range from -40°C to +125°C.
Feature Summary
- Automotive qualification compliant with AEC-Q100 standards
- Adjustable output voltage via external resistor divider
- Low operating current suitable for power-constrained designs
- High thermal stability over wide temperature ranges
Applications
- Isolated feedback circuits in switch-mode power supplies
- Secondary side regulation in flyback converters
- Voltage monitoring systems
- Comparator reference circuits
Procurement Notes
Verify the specific suffix 'REP' against the official Texas Instruments datasheet to confirm if it denotes a specific tape-and-reel packaging variant or a restricted distribution channel. Ensure the component meets the required AEC-Q100 grade for your automotive application. Cross-reference the full part number with authorized distributors to confirm availability and authenticity.
Selection Notes
Select this component when automotive reliability and low-voltage operation are critical. The 0.5% accuracy and 70 mA sink current make it suitable for precise regulation tasks. Compare against standard commercial grades if automotive certification is not required. Ensure the SOT-23-3 footprint matches the PCB design constraints.
Part Context
This part belongs to the TLVH431 family of low-voltage adjustable shunt regulators. It serves as a drop-in replacement for traditional TL431 devices in low-voltage applications, offering improved performance at lower supply voltages. The 'B' designation indicates 0.5% accuracy, while 'Q1' signifies automotive qualification.
Replacement Considerations
Compatible substitutes include TLVH431AIMDBZR and TLVH431BIMDBZR for non-automotive use. For direct automotive equivalents, consider TLVH431BMDBZRG4. Verify pinout compatibility and electrical specifications before substitution.
