TPS3842A010DRLRQ1

Supervisors Overview

The TPS3842A010DRLRQ1 is an automotive-grade voltage supervisor designed for monitoring supply voltages up to 42V. It features a fixed threshold of 700mV and operates within a supply range of 1.9V to 42V. The device offers low quiescent current of 850nA typical, ensuring minimal power consumption. It provides open-drain or push-pull reset outputs and includes manual reset functionality. The component is qualified under AEC-Q100 standards for Grade 1, supporting operation from -40°C to +125°C ambient temperature.

Supervisors Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards for reliability in harsh environments
• Ultra-low quiescent current consumption to preserve battery life in standby modes
• Flexible output configuration supporting both open-drain and push-pull reset signals
• Integrated manual reset capability allowing user-initiated system recovery

Supervisors Applications

• Monitoring power rails in automotive infotainment systems
• Supervising voltage levels in automotive body control modules
• Protecting microcontroller units in automotive sensor interfaces
• Ensuring stable operation in automotive gateway applications

Supervisors Procurement Notes

Verify the specific suffix DRLRQ1 confirms the SOT-563 package and reel packaging format. Confirm AEC-Q100 Grade 1 qualification status matches project requirements. Ensure the 700mV threshold aligns with the monitored circuit's undervoltage detection needs. Check that the 42V rating covers the maximum expected supply voltage including transients.

Supervisors Selection Notes

Select this component when automotive reliability is required alongside ultra-low power consumption. The 42V input range suits high-voltage automotive buses. The fixed 700mV threshold is suitable for monitoring lower voltage rails or specific reference points. Consider the SOT-563 package size for space-constrained PCB layouts. Verify compatibility with the system's reset logic requirements regarding active states.

Supervisors Part Context

This part belongs to the Texas Instruments TPS3842 family of small-size nano-power undervoltage supervisors. The 'Q1' suffix denotes automotive qualification, while 'A010' specifies the 700mV threshold variant. The 'DRLR' indicates the SOT-563 surface-mount package and tape-and-reel shipping method. This series targets applications requiring robust voltage monitoring with minimal footprint and power impact.

Supervisors Replacement Considerations

Direct substitutes include TPS3842A010DRLR for non-automotive use. For higher voltage ratings, consider TPS38A010122DSKRQ1 which supports up to 65V. Ensure any replacement maintains the same threshold voltage and package dimensions for board compatibility.