TPS3840DL31DBVR Voltage Supervisor from Texas Instruments

The TPS3840DL31DBVR is a highly precise voltage supervisor designed to monitor low-voltage core, I/O, and backup supplies. Manufactured by Texas Instruments, this component is part of their extensive line of power management integrated circuits. The TPS3840 family offers a versatile solution for system designers looking to enhance the reliability of their applications through voltage supervision.

Key Features

• Voltage Threshold: The device has a fixed factory-programmed threshold of 3.1V, making it suitable for 3.3V supply monitoring with tight accuracy requirements.
• Low Quiescent Current: It features an ultra-low quiescent current of 350 nA (typical), which is ideal for battery-powered and energy-efficient applications.
• High Accuracy: With a threshold accuracy of ±1% over the temperature range of -40°C to +125°C, the TPS3840 ensures reliable operation even under varying environmental conditions.
• Watchdog Timer: An integrated watchdog timer improves system reliability by monitoring the microcontroller or processor activity.
• Reset Delay Time: The device offers an adjustable power-on reset delay time, which can be programmed by an external capacitor.
• Supply Voltage Range: It operates over a wide supply voltage range of 1.5V to 6.5V, accommodating a variety of power rails.
• Output Configuration: The open-drain active-low RESET output can interface directly with both push-pull and open-drain input types.
• Small Form Factor: The TPS3840DL31DBVR is available in a compact 6-pin SOT-23 package, making it suitable for space-constrained applications.

Applications

The TPS3840DL31DBVR is versatile and can be used in a wide array of applications. It is particularly useful in:

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

With its precision voltage monitoring and low power consumption, the TPS3840DL31DBVR is an excellent choice for designers who need a reliable voltage supervisor to protect their sensitive electronic systems.