TPS3808G12QDBVRQ1

Supervisors Overview

The TPS3808G12QDBVRQ1 is an automotive-grade voltage supervisory circuit manufactured by Texas Instruments. It operates within a supply voltage range up to 6.5 V and features a fixed threshold voltage of 1.12 V with 0.5% accuracy. The device provides an active low, open-drain output and supports manual reset functionality. It exhibits a quiescent current of 2.4 uA and offers programmable reset delay times ranging from 1.25 ms to 10 s. Designed for reliability in harsh environments, it functions between -40 C and +125 C and holds AEC-Q100 qualification.

Supervisors Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for enhanced reliability
• Ultra-low quiescent current consumption of 2.4 uA for power efficiency
• Programmable reset delay time adjustable from 1.25 ms to 10 s
• Fixed 1.12 V threshold voltage with high precision accuracy

Supervisors Applications

• Microprocessor system supervision in automotive electronics
• Battery backup switching circuits
• Manual reset control interfaces
• Voltage monitoring for critical logic supplies

Supervisors Procurement Notes

Verify the complete part number including suffixes to ensure correct threshold voltage and package configuration. Confirm AEC-Q100 qualification status is required for the specific application environment. Check datasheet for exact operating temperature ranges and electrical characteristics relative to supply voltage variations. Ensure compatibility with system reset timing requirements before integration.

Supervisors Selection Notes

Select this component when a fixed 1.12 V monitoring level is required for automotive applications. The 2.4 uA quiescent current makes it suitable for battery-backed systems where standby power is critical. The programmable delay allows customization for different startup sequences. Consider the SOT-23-6 package size for space-constrained PCB layouts.

Supervisors Part Context

This device belongs to the TPS3808 family of low-quiescent-current supervisors. It shares the same package and general interface as other variants but differs in threshold voltage settings. The 'G12' suffix indicates the specific 1.12 V threshold version. It complements other PMIC solutions by providing dedicated voltage monitoring without complex programming interfaces.

Supervisors Replacement Considerations

Direct substitutes include TPS3808G01QDBVRQ1 (405 mV threshold) and TPS3808G50QDBVRQ1 (5.0 V threshold). Non-automotive equivalents like TPS3808G12DBVT exist but lack AEC-Q100 certification. Verify pinout compatibility and electrical specifications before swapping.