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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 2.2% 8DIP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- 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：Through Hole
- Package / Case：8-DIP (0.300", 7.62mm)
- Supplier Device Package：8-PDIP
- Grade：-
- Qualification：-
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Overview
The TL431CPG4 is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates as a three-terminal voltage reference with an output voltage range from 2.495V to 36V. The device features a typical initial accuracy of ±1% and a temperature coefficient of 50 ppm/°C. It supports a cathode current range of 1mA to 100mA and has a maximum input voltage of 37V. The component is housed in an 8-pin PDIP package and is rated for operation within a temperature range of 0°C to 70°C.
Feature Summary
- Provides programmable output voltage ranging from 2.495V to 36V via external resistors
- Ensures high thermal stability across the specified operating temperature range
- Offers precise regulation with guaranteed low initial output voltage tolerance
Applications
- Precision voltage references in power supply circuits
- Programmable Zener diode applications
- Feedback control loops in switching regulators
Procurement Notes
Verify that the ordering suffix 'G4' confirms compliance with RoHS standards and specifies the PDIP-8 package configuration. Confirm the manufacturer is Texas Instruments, as other vendors produce similar part numbers without this specific suffix designation. Ensure the procurement channel provides valid datasheets matching the TI specification sheet for the TL431 family.
Selection Notes
Select the TL431CPG4 when a through-hole PDIP-8 package is required for board assembly or prototyping. This variant is suitable for commercial temperature ranges (0°C to 70°C). Consider alternative packages such as SOIC or SOT-23 if surface-mount technology is preferred or if space constraints exist on the PCB layout.
Part Context
The TL431 is a widely used three-terminal adjustable shunt regulator known for its versatility and reliability. The CPG4 suffix indicates a specific package and environmental compliance version produced by Texas Instruments. This component serves as a fundamental building block for feedback networks in various analog and power management designs.
Replacement Considerations
Direct replacements include the TL431CPI and TL431ACPI from Texas Instruments, which share the same PDIP-8 package and electrical characteristics. Other manufacturers offer pin-compatible alternatives, but verification of parameter tolerances and package dimensions is necessary.
