The TPS3824-50QDBVRQ1 from Texas Instruments is a highly reliable, automotive-grade supervisory circuit designed to monitor the supply voltage of microprocessors (µPs), digital signal processors (DSPs), and other voltage-sensitive systems. This component ensures that the system voltage remains within acceptable limits, providing a crucial safeguard against voltage-related failures in automotive and industrial applications.

Key Features

• Voltage Monitoring: The device features a fixed-sense threshold voltage of 4.55V, which is ideal for 5V systems. This precise monitoring helps prevent system malfunction caused by undervoltage conditions.
• Reset Timeout Delay: It includes an integrated delay circuit that provides a reset timeout of 200ms, ensuring sufficient time for the system to stabilize before it resumes operation after a voltage drop.
• Low Supply Current: With a typical supply current of 15µA, the TPS3824-50QDBVRQ1 is optimized for low-power consumption, making it suitable for power-sensitive applications.
• Temperature Range: The device operates over a wide temperature range of -40°C to +125°C, allowing for use in harsh automotive environments and industrial settings.
• Package: It is available in a small, 5-pin SOT-23 package, which is space-efficient and well-suited for compact circuit board designs.

Applications

The TPS3824-50QDBVRQ1 is designed for use in a variety of applications where voltage supervision is critical. This includes:

• Automotive systems such as engine control units (ECUs), infotainment, and ADAS (Advanced Driver-Assistance Systems)
• Industrial equipment requiring reliable voltage monitoring
• Portable and battery-powered electronics
• Telecommunications infrastructure

Quality and Reliability

As an automotive-qualified product, the TPS3824-50QDBVRQ1 meets the stringent requirements of the automotive industry for quality and reliability. It is designed to withstand the rigors of automotive applications, ensuring long-term performance and stability.