Product Overview: TPS3840DL24DBVR from Texas Instruments

The TPS3840DL24DBVR is a high-accuracy voltage supervisor designed by Texas Instruments to monitor low-power handheld applications. This tiny, yet powerful device is a quintessential component for systems that require precise voltage monitoring to ensure reliable operation. The TPS3840 family offers a variety of voltage threshold options, and this particular model has a nominal threshold voltage of 2.4V, making it ideal for supervising 2.5V power rails.

Encased in a compact 6-pin SOT-23 package, the TPS3840DL24DBVR boasts an ultra-low current consumption of merely 350 nA, which is particularly beneficial for battery-powered devices where power efficiency is crucial. Its low quiescent current helps in extending the battery life, thereby enhancing the overall efficiency of the application it is used in.

This voltage supervisor is equipped with a manual reset input, enabling a straightforward mechanism for external control over the reset function. The reset delay time can be set by an external capacitor, providing flexibility to match specific system requirements. When the monitored voltage falls below the threshold, the TPS3840DL24DBVR asserts a reset signal, which remains active until the voltage recovers and the delay time has elapsed, ensuring the system has stabilized before normal operation resumes.

Furthermore, the TPS3840DL24DBVR is characterized for operation over a wide temperature range of –40°C to +125°C, which allows it to be utilized in various environments, from industrial to automotive applications. Its open-drain active-low output can interface directly with a microcontroller or other digital systems, adding to its versatility.

Key features of the TPS3840DL24DBVR include:

• 2.4V fixed threshold voltage
• Ultra-low current consumption: 350 nA (typical)
• Manual reset input
• Programmable reset delay time
• Wide operating temperature range: –40°C to +125°C
• Open-drain active-low output
• Compact 6-pin SOT-23 package

Overall, the TPS3840DL24DBVR is a reliable and efficient solution for voltage supervision in sensitive electronic systems. Its precise voltage monitoring capabilities, combined with its low power consumption and programmable features, make it an excellent choice for designers looking to enhance system reliability in a wide array of applications.