2U3838K33QDBVRG4Q1

Overview

The TPS3838K33QDBVRG4Q1 is an automotive-grade voltage supervisor IC manufactured by Texas Instruments. It operates within a supply voltage range of up to 6 V and features a threshold voltage of 2.93 V with an overvoltage threshold of 3.1 V. The device provides a manual reset function with a reset delay time of 200 ms and consumes a typical operating current of 250 nA. It offers high accuracy of 1.75% and is housed in a compact SOT-23-5 package. Designed for harsh environments, it supports an extended temperature range from -40°C to +125°C and meets AEC-Q100 qualification standards.

Feature Summary

• Provides reliable system protection through precise voltage monitoring with low quiescent current consumption suitable for battery-powered applications.
• Features a manual reset capability allowing external control over the reset state for customized system initialization sequences.
• Delivers accurate supervision with specified threshold voltages and high accuracy tolerance to ensure stable operation under varying load conditions.

Applications

• Automotive electronic systems requiring AEC-Q100 qualified power management components
• Battery-operated devices needing ultra-low standby current consumption
• Industrial control circuits demanding wide operating temperature stability

Procurement Notes

Verify the specific suffix G4 indicates lead-free and RoHS compliance status as per manufacturer documentation. Confirm that the Q1 designation aligns with required automotive qualification standards for your application. Ensure the SOT-23-5 package footprint matches your PCB layout constraints. Check for any recent product change notices or end-of-life announcements affecting long-term availability.

Selection Notes

Select this component when a single-channel supervisor with manual reset functionality is required. Consider the 2.93 V threshold if monitoring a 3.3 V rail is necessary. The low 250 nA current draw makes it ideal for energy-sensitive designs. Verify that the open-drain output type suits your microcontroller's input requirements without additional pull-up resistors.

Part Context

This part belongs to the TPS3838 family of simple reset supervisors designed for automotive and industrial markets. It complements other PMIC solutions by offering dedicated voltage monitoring without complex configuration needs. The series is known for its reliability and compact form factor, fitting into space-constrained designs while maintaining robust performance across extreme temperatures.

Replacement Considerations

The TLV803RDBZR is listed as a similar replacement option for discontinued variants within the same family. Evaluate pin compatibility and electrical specifications before substitution. Ensure the alternative maintains the required AEC-Q100 qualification if used in automotive contexts.