TPS3803-01QDCKREP - Texas Instruments

The TPS3803-01QDCKREP is a highly reliable, low-power supervisory circuit designed by Texas Instruments to monitor power supply and system voltages. This component is part of Texas Instruments' product enhancements for rugged environments (EP) series, which are known for their robustness and suitability for use in demanding applications where extended temperature ranges and higher reliability are required.

With a precision voltage detector, the TPS3803-01QDCKREP ensures that systems operate within their specified voltage levels. It is capable of monitoring a single system supply voltage of 1.5V, 1.8V, 2.5V, 3V, 3.3V, or 5V. The device features a fixed-sense threshold voltage that has been preset by internal resistors, which simplifies the design process by removing the need for external components.

The supervisory circuit provides a reset signal to the host processor when the monitored supply voltage drops below the threshold, helping to prevent system malfunction. The reset output remains low until the supply voltage returns to a safe level and a built-in timer stabilizes the system. This reset delay feature allows the system to recover before normal operation resumes, ensuring a reliable startup.

The TPS3803-01QDCKREP comes in a compact, 5-pin SC-70 package, which is ideal for space-constrained applications. Its low power consumption makes it an excellent choice for portable and battery-operated devices. The device is characterized for operation over a temperature range of –40°C to 125°C, serving a wide array of industrial and commercial applications.

Key features of the TPS3803-01QDCKREP include:

• Precision supply voltage supervision
• Low supply current of 9 µA (typical)
• Programmable reset delay time
• Manual reset input
• Supply voltage range from 1.5V to 5V
• SC-70 package suitable for small form factors
• Extended temperature range for rugged environments

Overall, the TPS3803-01QDCKREP is an essential component for systems that require accurate voltage monitoring and reliable operation under varying conditions, making it a trusted choice for engineers and designers in the electronics industry.