2U3825-33QDBVRG4Q1

Overview

The TPS3825-33QDBVRQ1 is an automotive-grade voltage supervisor with a watchdog timer, housed in a SOT-23-5 package. It monitors a single input with a threshold of 2.93 V and supports a supply voltage range of 1.1 V to 5.5 V. The device features an active low open-drain output, manual reset capability, and a 200 ms reset delay. It operates within a temperature range of -40 °C to +125 °C.

Feature Summary

• Integrated watchdog timer for system reliability
• Automotive qualification for harsh environments
• Manual reset pin for user control

Applications

• Automotive processor supervision
• Embedded system monitoring
• Industrial control circuits

Procurement Notes

Verify the exact part number suffix against official Texas Instruments documentation, as variations exist between TPS3825-33QDBVRQ1 and similar codes. Confirm RoHS compliance status and ensure the component matches the specified SOT-23-5 package dimensions. Cross-reference datasheet revisions to confirm functional equivalence before procurement.

Selection Notes

Select this component when an automotive-rated supervisor with integrated watchdog functionality is required. Ensure the monitored voltage aligns with the 2.93 V threshold. Verify that the open-drain output configuration fits the target microcontroller's reset input requirements. Check operating temperature limits against environmental conditions.

Part Context

This device belongs to the TPS382x-Q1 family of voltage supervisors designed for automotive applications. It provides essential protection for processors by detecting under-voltage conditions and managing system resets through its watchdog feature.

Replacement Considerations

Check for direct substitutes within the TPS382x-Q1 series or other TI automotive supervisors with matching thresholds and packages.

FAQ

What is the reset delay time?

The reset delay time is 200 ms.

Is manual reset supported?

Yes, the device includes a manual reset pin.