The TPS389020DSER is a highly precise voltage supervisor designed by Texas Instruments, a leader in semiconductor solutions. This compact device is part of the TPS3890 family and is engineered to monitor system voltages, ensuring that electronic products operate within their intended voltage ranges. It is particularly suitable for applications that require a high degree of reliability and accuracy in voltage monitoring.

Key Features

• High Accuracy: The TPS389020DSER offers a precision threshold voltage accuracy of ±0.5%, which is critical for systems that cannot tolerate voltage deviations.
• Low Power Consumption: With a quiescent current of only 1.5 µA, this device is ideal for power-sensitive applications, extending the battery life of portable devices.
• Adjustable Threshold: Users can set the voltage threshold according to their specific needs, providing flexibility across different applications.
• Manual Reset: The device includes a manual reset input, allowing users to trigger a system reset as needed.
• Watchdog Timer: An integrated watchdog timer feature helps to ensure that systems do not hang or become unresponsive.
• Wide Operating Temperature Range: The TPS389020DSER operates over a temperature range of -40°C to +125°C, making it suitable for harsh environments.

Applications

The TPS389020DSER is versatile and can be used in various applications, including:

• Portable and battery-powered devices
• Industrial control systems
• Automotive electronics
• Medical equipment
• Networking and telecommunication systems

Technical Specifications

Enclosed in a small 6-pin WSON package, the TPS389020DSER has a supply voltage range of 1.5V to 6.5V. The device also features an active-low, open-drain RESET output, which remains asserted for a minimum of 200 ms after the monitored voltage exceeds the threshold, ensuring a reliable system reset.

Conclusion

The TPS389020DSER from Texas Instruments is a top-tier voltage supervisor, offering precision, flexibility, and reliability for a wide array of electronic systems. Its low power consumption and high accuracy make it an excellent choice for engineers looking to enhance system stability and operational integrity.