TL431ACDBVTG4

Overview

The TL431ACDBVTG4 is an adjustable precision shunt regulator manufactured by Texas Instruments. It operates within a voltage range of 2.495V to 36V and supports a maximum output current of 100mA. The device features an initial accuracy tolerance of ±1% and a temperature coefficient of ±92 ppm/°C. It functions with a minimum cathode current of 600µA for regulation. The component is housed in a surface-mount SOT-23-5 package and is rated for an operating temperature range of 0°C to 70°C.

Feature Summary

• Provides adjustable reference voltage functionality via external resistor divider
• Ensures high stability through low dynamic impedance characteristics
• Supports operation across a wide input voltage range up to 36V

Applications

• Precision voltage references in power supply circuits
• Voltage monitoring and control loops
• Comparator applications requiring stable reference thresholds

Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance and lead-free construction as per Texas Instruments standards. Confirm the SOT-23-5 package designation matches the required footprint. Ensure the AC grade tolerance aligns with circuit requirements. Check for obsolescence notices or lifecycle status updates from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a precise, adjustable shunt regulator is needed for space-constrained designs utilizing the SOT-23-5 package. The AC grade offers tighter initial accuracy compared to standard variants. Consider the 600µA minimum cathode current requirement for low-power biasing networks. Evaluate thermal performance within the specified 0°C to 70°C operating range for the intended application environment.

Part Context

This part belongs to the TL431 family of adjustable shunt regulators, widely used in power management ICs. The 'G4' suffix typically denotes Green/RoHS-compliant packaging. It serves as a fundamental building block for feedback loops in switching regulators and linear power supplies, offering a cost-effective alternative to fixed voltage references.

Replacement Considerations

Direct substitute: TL431ACDBVT. Verify pinout compatibility and electrical specifications match exactly.