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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：-40°C ~ 85°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 TLVH431NAIDBZR-QR is a three-terminal adjustable precision shunt regulator from the Nexperia TLVH431N-Q family. It operates within an output voltage range of approximately 1.24 V to 14 V, set by two external resistors. This specific variant features A-Grade reference voltage tolerance of 1.0% and supports an ambient temperature range of -40 °C to 85 °C. It utilizes the SOT23 (TO-236AB) surface-mounted package with normal pinning configuration.
Feature Summary
- Qualified according to AEC-Q100 Grade 1 for automotive applications
- Features low output noise and typical dynamic impedance of 0.1 Ω
- Provides sink current capability ranging from 0.08 mA to 70 mA
- Offers sharp turn-on characteristic suitable as Zener diode replacement
Applications
- Shunt regulator circuits
- Precision current limiter designs
- Isolated feedback loops for Switch Mode Power Supplies (SMPS)
Procurement Notes
Verify the complete part number against official Nexperia documentation to ensure correct grade, package, and suffix alignment. Confirm that the A-Grade 1.0% tolerance and -40 °C to 85 °C temperature range match the design requirements. Check for any recent Product Change Notifications (PCNs) or obsolescence notices directly from the manufacturer before finalizing procurement plans.
Selection Notes
Select this component when AEC-Q100 Grade 1 qualification is required for automotive environments. The A-Grade 1.0% tolerance offers higher precision than the standard 1.5% grade. Ensure the application operates within the recommended cathode current limits of 0.08 mA to 70 mA and the maximum cathode-anode voltage of 14 V for reliable performance.
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. The 'A' indicates A-Grade tolerance, 'I' denotes the -40 °C to 85 °C operating range, and 'DBZR' specifies the SOT23 package with tape-and-reel packaging.
Replacement Considerations
Compatible substitutes within the same family include TLVH431NACDBZR-Q (commercial temp), TLVH431NAQDBZR-Q (extended temp), and TLVH431NAMQDBZR-Q (mirrored pinning). Verify pinout compatibility if replacing with mirrored versions.
