TPS3850H01DRCR

The TPS3850H01DRCR is a voltage supervisor integrated circuit (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 is crucial for ensuring reliable operation in various electronic applications, particularly in systems that require a stable power supply.

Key Features:

1. Voltage Monitoring: The TPS3850H01 can monitor a range of supply voltages, typically from 0.5V to 5.5V, making it suitable for a variety of applications.

2. Adjustable Reset Threshold: The reset threshold voltage can be set using external resistors, allowing designers to customize the reset point according to their specific requirements.

3. Low Supply Current: The device operates with a low supply current, which is beneficial for battery-powered applications where power efficiency is critical.

4. Fast Reset Response Time: The TPS3850H01 features a fast reset response time, ensuring that the reset signal is generated quickly when the monitored voltage drops below the threshold.

5. Active Low Reset Output: The reset output is active low, meaning that it goes low when a reset condition is detected, which is compatible with most digital logic levels.

6. Hysteresis: The IC includes built-in hysteresis to prevent false triggering due to noise or minor fluctuations in the supply voltage.

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

8. Package Type: The TPS3850H01 is available in a compact 5-pin SOT-23 package, which is ideal for space-constrained designs.

Applications:

• Microcontroller Reset: Ensures that microcontrollers start up correctly and operate reliably by providing a reset signal during power-up and brown-out conditions.
• Power Management Systems: Used in power management circuits to monitor supply voltages and ensure stable operation.
• Consumer Electronics: Commonly found in devices such as smartphones, tablets, and other portable electronics where voltage monitoring is critical.
• Automotive Systems: Suitable for automotive applications due to its wide temperature range and robustness.

Electrical Characteristics:

• Supply Voltage Range: Typically from 1.0V to 5.5V.
• Reset Threshold Voltage: Configurable, with typical values around 1.2V, 1.5V, or 2.5V.
• Reset Timeout: The reset signal can be held low for a specified timeout period after the voltage returns to normal levels.

Conclusion:

The TPS3850H01DRCR from Texas Instruments is a versatile and reliable voltage supervisor that plays a critical role in ensuring the stability and reliability of electronic systems. Its adjustable features, low power consumption, and robust design make it an excellent choice for a wide range of applications in both consumer and industrial electronics.