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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 1% SOT23F
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：20 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-3 Flat Leads
- Supplier Device Package：SOT-23F
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The ZTL431AQFFTA is a three-terminal adjustable precision shunt regulator from Diodes Incorporated, designed for automotive applications. It operates within an ambient temperature range of -40°C to +125°C and features a maximum cathode voltage rating of 20V. The device offers a sink current capability ranging from 1mA to 100mA. As an A-grade component, it provides a reference voltage tolerance of 1% at +25°C, with a typical reference voltage of 2.5V. The output voltage is programmable between the reference voltage and 20V using two external divider resistors. It is housed in a compact SOT23F package.
Feature Summary
- Qualified to AEC-Q100 Grade 1 standards for high reliability
- Supports PPAP documentation for automotive compliance
- Offers excellent temperature stability across extended ranges
- Provides low dynamic output impedance
Applications
- Opto-Coupler Linearization
- Linear Regulators
- Improved Zener
- Variable Reference
Procurement Notes
Verify that the specific part number matches the required grade and package configuration. Confirm that the application environment remains within the specified operating temperature limits. Ensure proper handling precautions are taken due to ESD susceptibility. Check for any specific automotive quality requirements mandated by the end product design.
Selection Notes
Select this component when automotive qualification and PPAP support are required. Choose the A-grade variant if a 1% initial tolerance meets the circuit accuracy needs. Consider the SOT23F package dimensions for PCB layout constraints. Verify that the 20V maximum voltage rating aligns with the system supply rails.
Part Context
This device belongs to the ZTL431Q family of adjustable shunt regulators manufactured by Diodes Incorporated. It serves as an automotive-compliant alternative to standard commercial versions, sharing similar electrical characteristics but adhering to stricter automotive reliability standards. The suffix indicates the specific package type and grading.
Replacement Considerations
Functionally equivalent to TL431/TL432 except for maximum operation voltage. Direct substitutes include other ZTL431AQ variants with different packages or grades.
