2U3823-30QDBVRG4Q1

Overview

The TPS3823-30QDBVRG4Q1 is a voltage supervisor circuit designed for automotive applications, certified to AEC-Q100 standards. It operates within an input voltage range of 1.1 V to 5.5 V and features a fixed reset threshold of approximately 3.0 V. The device provides a manual reset input and an active-low push-pull output with a typical reset delay of 200 ms. It includes a watchdog timer function to monitor system integrity. The component is housed in a compact SOT-23-5 package and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Integrated watchdog timer for system fault monitoring
• Manual reset input capability for user-initiated control
• Automotive-grade reliability with AEC-Q100 qualification

Applications

• Automotive electronic control units (ECUs)
• Industrial motor control systems
• Battery-powered embedded devices requiring supervision

Procurement Notes

Verify the part number suffix G4Q1 indicates specific tape-and-reel packaging and lead-free compliance. Confirm AEC-Q100 certification status for your specific automotive grade requirements. Check datasheet for exact threshold voltage tolerances and watchdog timeout specifications before finalizing design integration.

Selection Notes

Select this component when a fixed 3V threshold supervisor with integrated watchdog functionality is required. Ensure the supply voltage remains within the 1.1V to 5.5V operational range. Consider the SOT-23-5 package size constraints and the need for manual reset inputs in your application design.

Part Context

This part belongs to the TPS3823 family of voltage supervisors from Texas Instruments. It is specifically engineered for high-reliability environments, distinguishing itself through automotive qualification. The device simplifies system protection by combining voltage monitoring, reset generation, and watchdog timing in a single small-footprint package.

Replacement Considerations

Direct substitutes include other TPS3823 variants with different threshold voltages or reset delays. Verify pin compatibility and electrical parameters such as quiescent current and reset delay time when considering alternative parts from the same manufacturer.