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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：0°C ~ 70°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 TL431BCDRG4 is an adjustable precision shunt regulator manufactured by Texas Instruments, belonging to the TL431 series. It operates within a voltage range of 2.495 V to 36 V and provides an initial accuracy of 0.5%. The device supports a maximum cathode current of 100 mA and withstands a maximum input voltage of 36 V. It functions reliably across a temperature range of 0°C to 70°C with a temperature coefficient of 92 PPM/°C. Packaged in an 8-SOIC surface-mount format, it serves as a versatile reference voltage component for power management applications.
Feature Summary
- Provides precise adjustable voltage regulation via external resistor divider networks
- Ensures stable performance with low temperature coefficient characteristics
- Supports high cathode current capacity for robust load handling
Applications
- Precision voltage references in power supply circuits
- On-line isolation amplifiers
- Voltage regulators requiring adjustable output thresholds
Procurement Notes
Verify the specific suffix G4 indicates RoHS compliance and green packaging status according to Texas Instruments documentation. Confirm the 8-SOIC package dimensions match your PCB footprint requirements. Check for any recent Product Change Notifications regarding assembly sites or material updates that may affect long-term availability or specifications.
Selection Notes
Select this component when a 0.5% initial accuracy is required for shunt regulation. Ensure the operating environment stays within the 0°C to 70°C commercial temperature range. Verify that the 36 V maximum input voltage aligns with your circuit's peak supply levels. Consider the 8-SOIC package for surface-mount assembly compatibility.
Part Context
This part is a variant of the widely used TL431 family of programmable shunt regulators. The B grade denotes the 0.5% accuracy tier, while the C indicates the commercial temperature range. The DRG4 suffix specifies the 8-SOIC package and RoHS-compliant manufacturing. It replaces older non-RoHS versions like the TL431BCDR.
Replacement Considerations
The TL431BCDR is a direct functional equivalent without the RoHS-specific suffix. Other TL431 variants with different accuracy grades (A or Q) or packages (SOT-23) are not pin-compatible or electrically identical.
