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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.4% 8TSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：8-TSSOP
- Grade：-
- Qualification：-
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Overview
The TL1431QPWRG4 is a precision programmable shunt reference from Texas Instruments, characterized for the automotive temperature range of –40°C to 125°C. It operates within an adjustable output voltage range from approximately 2.5V to 36V using two external resistors. The device features a typical output impedance of 0.2Ω and supports a cathode sink current capability between 1mA and 100mA. It utilizes a TSSOP-8 package.
Feature Summary
- Provides high initial voltage tolerance for precise regulation
- Features fast turn-on characteristics suitable for clamp applications
- Internally compensated for stability without requiring an output capacitor
Applications
- Adjustable voltage and current referencing
- Secondary side regulation in flyback switching power supplies
- Voltage monitoring circuits
- Comparator with integrated reference
Procurement Notes
Verify that the ordering suffix 'PW' corresponds to the TSSOP-8 package and 'R4' indicates tape and reel packaging. Confirm the 'Q' designation ensures compliance with the specified –40°C to 125°C automotive operating temperature range. Ensure the component meets RoHS standards as indicated by the 'G4' suffix.
Selection Notes
Select this component when an automotive-grade precision reference is required over extended temperature ranges. It serves as a direct replacement for Zener diodes where low dynamic impedance and sharp turn-on are necessary. Suitable for onboard regulation and industrial applications demanding stable performance.
Part Context
This part belongs to the TL1431 family of precision programmable references manufactured by Texas Instruments. The 'Q' variant specifically targets automotive environments, offering thermal stability across the full automotive temperature spectrum compared to commercial or military variants.
Replacement Considerations
TL1431D (SOIC-8), TL1431PW (TSSOP-8 commercial grade), TL1431LP (TO-92). Verify package compatibility and temperature range requirements before substitution.
