TPS3850H12DRCT

The TPS3850H12DRCT is a voltage supervisor and reset IC manufactured by Texas Instruments. It is designed to monitor power supply voltages and provide a reset signal to microcontrollers and other digital devices when the supply voltage falls below a specified threshold. This device is particularly useful in applications where reliable operation is critical, such as in automotive, industrial, and consumer electronics.

Key Features:

1. Voltage Monitoring: The TPS3850H12DRCT can monitor a variety of supply voltages, ensuring that the system operates within safe limits. It has a fixed voltage threshold of 1.2V, which is ideal for many low-voltage applications.

2. Reset Output: The device provides a reset output that goes low when the monitored voltage drops below the threshold. This output remains low for a specified duration after the voltage returns to normal, allowing the system to stabilize before resuming operation.

3. Adjustable Delay: The TPS3850H12DRCT includes an adjustable reset delay feature, allowing designers to set the time it takes for the reset signal to go high after the supply voltage has stabilized. This is crucial for ensuring that all components in the system are ready before the microcontroller starts executing code.

4. Low Power Consumption: The device is designed for low power operation, making it suitable for battery-powered applications. It typically consumes only a few microamperes of current, which helps extend battery life.

5. Wide Operating Voltage Range: The TPS3850H12DRCT operates over a wide voltage range, making it versatile for various applications. It can handle input voltages from 1.5V to 5.5V.

6. Small Package Size: The device is available in a compact 5-pin SOT-23 package, which is ideal for space-constrained designs. This small footprint allows for easy integration into printed circuit boards (PCBs).

7. Temperature Range: The TPS3850H12DRCT is rated for operation over an extended temperature range, making it suitable for use in harsh environments.

Applications:

• Microcontroller Reset: Ensures that microcontrollers start in a known state after power-up or when recovering from a brownout condition.
• Power Supply Monitoring: Used in systems that require constant monitoring of supply voltages to prevent malfunction.
• Automotive Electronics: Ideal for automotive applications where voltage stability is critical for safety and performance.
• Industrial Equipment: Provides reliable reset functionality in industrial control systems and machinery.

Conclusion:

The TPS3850H12DRCT from Texas Instruments is a robust and reliable voltage supervisor and reset IC that offers essential features for ensuring the proper operation of electronic systems. Its low power consumption, adjustable delay, and compact size make it an excellent choice for a wide range of applications, particularly in environments where voltage stability is paramount.