TL432BQDBZRQ1

Overview

The TL432BQDBZRQ1 is an automotive-grade adjustable precision shunt voltage reference manufactured by Texas Instruments. It operates within a supply voltage range of 2.495 V to 36 V and offers an initial accuracy of 0.5%. The device features a temperature coefficient of 92 PPM/°C and supports a maximum shunt current of 100 mA. It is qualified under AEC-Q100 standards for automotive applications, ensuring reliability in harsh environments. The component functions effectively across a wide operating temperature range from -40°C to +125°C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for enhanced reliability
• Adjustable output voltage capability using external resistors
• High initial accuracy of 0.5% for precise voltage regulation
• Wide operating temperature range suitable for demanding automotive conditions

Applications

• Automotive power management systems
• Precision voltage references in vehicle electronics
• Battery monitoring circuits
• Sensor signal conditioning

Procurement Notes

Verify the specific suffix QDBZR indicates tape-and-reel packaging configuration. Confirm AEC-Q100 qualification status matches project requirements. Ensure compatibility with SOT-23-3 footprint during PCB layout. Check for any recent Product Change Notifications affecting marking or materials. Validate thermal performance within the specified -40°C to +125°C operational envelope.

Selection Notes

Select this component when automotive certification is mandatory for voltage reference applications. Consider the 0.5% initial accuracy if tighter tolerances are not required. Evaluate the 100 mA shunt current limit against load requirements. Compare temperature coefficients with other series members if extreme stability is needed. Ensure the SOT-23-3 package fits the available board space constraints.

Part Context

This part belongs to the TL432 family of adjustable shunt regulators. It shares functional similarities with the TL431 but utilizes a different pinout compatible with SOT-23 packages. The 'Q' suffix denotes automotive grade qualification. It serves as a drop-in replacement for standard shunt regulators where automotive reliability is required.

Replacement Considerations

Direct substitutes include TL432AQDBZRQ1 for 1% accuracy variants. Non-automotive equivalents like TL432IDBZR lack AEC-Q100 certification. Verify pinout compatibility when replacing with non-TI shunt regulators. Ensure voltage and current ratings meet or exceed original specifications.