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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 0.5% 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：2.495V
- Voltage - Output (Max)：36 V
- Current - Output：100 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The TL431BIDRG4 is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.495 V to 36 V and supports a maximum cathode current of 100 mA. The device features an initial accuracy of ±0.5% and a maximum temperature coefficient of 92 ppm/°C. It is housed in an 8-SOIC package with a width of 3.90 mm. The component functions effectively across an operating temperature range from -40°C to +85°C.
Feature Summary
- Provides stable reference voltage through adjustable shunt regulation topology
- Ensures high precision with specified initial accuracy tolerance
- Supports surface mount installation for automated assembly processes
Applications
- Precision power supply regulation circuits
- Voltage reference sources for analog signal processing
- Feedback control loops in switching mode power supplies
Procurement Notes
Verify the specific ordering suffix to confirm the reel packaging configuration, as indicated by the RG4 designation. Ensure compatibility with standard SOIC-8 footprint dimensions during PCB layout. Confirm RoHS compliance status and lead-free material specifications against current environmental regulations before finalizing procurement orders.
Selection Notes
Select this component when a 0.5% accuracy level is required for voltage referencing applications. The 8-pin SOIC package offers a balance between thermal performance and board space efficiency. Consider the 92 ppm/°C temperature coefficient for environments with moderate thermal fluctuations where higher stability variants are not strictly necessary.
Part Context
This part belongs to the TL431 family of adjustable shunt regulators, widely utilized in industrial and consumer electronics. The TL431 series serves as a versatile alternative to Zener diodes, offering superior temperature stability and lower dynamic impedance. The IDG4 suffix typically denotes specific manufacturing lot or tape-and-reel packaging variations within the Texas Instruments portfolio.
Replacement Considerations
Direct substitutes include the TL431BIDR and TL431BIDRG4 without the B grade if relaxed accuracy is acceptable. Cross-manufacturer equivalents such as the LM431 or KA431 may require verification of pinout compatibility and electrical parameter alignment.
