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Product Detailed Parameters
- Description：IC VREF SHUNT 1.24V SOT23-3
- Series：-
- Mfr：Nexperia USA Inc.
- Package：Tape & Reel (TR)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：14 V
- Current - Output：70 mA
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：TO-236AB
- Grade：-
- Qualification：-
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Overview
The TLVH431NCDBZR-QR is a three-terminal adjustable precision shunt regulator from the Nexperia TLVH431N-Q family. It operates within an output voltage range of 1.24 V to 14 V, set by two external resistors. The device features a standard reference voltage tolerance of 1.5% and supports a cathode current range from 0.08 mA to 70 mA. Qualified according to AEC-Q100 Grade 1, it is designed for automotive applications and utilizes a SOT23 (TO-236AB) surface-mounted package.
Feature Summary
- Programmable output voltage up to 14 V using external resistors
- Qualified according to AEC-Q100 Grade 1 for automotive use
- Low output noise with typical dynamic impedance of 0.1 Ω
Applications
- Shunt regulator
- Precision current limiter
- Precision constant current sink
- Isolated feedback loop for Switch Mode Power Supply (SMPS)
Procurement Notes
Verify that the specific part number matches the required temperature grade and pinning configuration. Confirm the component meets AEC-Q100 Grade 1 qualification standards if intended for automotive deployment. Ensure the ordering suffix aligns with the desired reference voltage tolerance and package variant before finalizing procurement specifications.
Selection Notes
Select this component when a low-cost, high-precision shunt regulator is required for automotive environments. The standard 1.5% tolerance suits general regulation tasks. Verify compatibility with the target operating temperature range of 0 °C to 70 °C. Consider mirrored pinning variants if PCB layout constraints require reversed terminal orientation.
Part Context
This device belongs to the TLVH431N-Q family of adjustable precision shunt regulators manufactured by Nexperia. The family includes variants with different temperature ranges and reference voltage tolerances. All members share the same core functionality but differ in thermal stability and accuracy grades to suit various commercial and automotive design requirements.
Replacement Considerations
Direct replacements include other members of the TLVH431N-Q family such as the TLVH431NQDBZR-Q or TLVH431NAQDBZR-Q. Substitutes must match the SOT23 package and verify AEC-Q100 compliance. Check pinning configurations carefully, as mirrored versions exist within the product line.
FAQ
What is the reference voltage tolerance for the TLVH431NCDBZR-QR?
The TLVH431NCDBZR-QR has a standard reference voltage tolerance of 1.5%.
Does the TLVH431NCDBZR-QR support mirrored pinning?
No, the TLVH431NCDBZR-QR uses normal pinning. Mirrored pinning is available in variants ending with MQDBZR.
What is the maximum cathode-anode voltage for this device?
The maximum cathode-anode voltage (VKA) for the TLVH431NCDBZR-QR is 14 V.
