TPS3850H33DRCR

The TPS3850H33DRCR 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. Here’s a detailed description of its features and specifications:

Key Features:

1. Voltage Monitoring: The TPS3850H33DRCR monitors a supply voltage and generates a reset signal when the voltage drops below a predetermined threshold. This is crucial for ensuring that digital systems operate reliably and do not enter an undefined state during power fluctuations.

2. Fixed Reset Threshold: The device has a fixed reset threshold of 3.3V, making it suitable for applications powered by 3.3V systems. This ensures that the reset signal is triggered appropriately for devices operating at this voltage level.

3. Active-Low Reset Output: The reset output is active-low, meaning that it goes low when a reset condition is detected. This output can be connected directly to the reset pins of microcontrollers or other digital logic devices.

4. Reset Timeout: The TPS3850H33DRCR includes a built-in reset timeout feature, which ensures that the reset signal remains active for a specified duration after the supply voltage returns to normal levels. This allows sufficient time for the system to stabilize before resuming normal operation.

5. Low Quiescent Current: The device is designed to operate with low quiescent current, making it suitable for battery-powered applications where power efficiency is critical.

6. Wide Operating Voltage Range: The TPS3850H33DRCR can operate over a wide range of supply voltages, typically from 1.0V to 5.5V, allowing it to be used in various applications beyond just 3.3V systems.

7. Temperature Range: The device is rated for operation over an extended temperature range, typically from -40°C to +125°C, making it suitable for industrial and automotive applications.

8. Small Package Size: The TPS3850H33DRCR is available in a compact 5-pin SOT-23 package, which is ideal for space-constrained designs.

Applications:

• Microcontroller Reset: Used in microcontroller-based systems to ensure proper startup and operation.
• Power Supply Monitoring: Ideal for monitoring power supplies in various electronic devices.
• Automotive Electronics: Suitable for automotive applications due to its wide temperature range and reliability.
• Industrial Equipment: Used in industrial control systems where voltage monitoring is critical for safety and performance.

Conclusion:

The TPS3850H33DRCR from Texas Instruments is a versatile and reliable voltage supervisor and reset IC that provides essential functionality for ensuring the stability and reliability of electronic systems. Its combination of low power consumption, fixed reset thresholds, and robust performance makes it an excellent choice for a wide range of applications in consumer, industrial, and automotive electronics.