TPS389050GQDSERQ1

The TPS389050GQDSERQ1 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 ensures that the system operates reliably and prevents erratic behavior during power fluctuations.

Key Features:

1. Voltage Monitoring: The TPS389050 can monitor a wide range of supply voltages, making it suitable for various applications. It typically features a fixed voltage threshold, which can be set to a specific level based on the requirements of the system.

2. Reset Output: The IC provides a reset output signal that is asserted when the monitored voltage drops below the threshold. This output can be used to reset microcontrollers or other digital logic devices, ensuring they start in a known state.

3. Adjustable Threshold: Some variants of the TPS3890 series allow for adjustable voltage thresholds, enabling customization for different applications. This flexibility is beneficial in designs where the supply voltage may vary.

4. Low Quiescent Current: The device is designed to operate with low power consumption, making it suitable for battery-powered applications. This feature helps extend battery life in portable devices.

5. Wide Operating Temperature Range: The TPS389050 is rated for a broad temperature range, which makes it suitable for use in various environments, from consumer electronics to industrial applications.

6. Small Package Size: The IC is available in a compact package, which is advantageous for space-constrained designs. This allows for easier integration into printed circuit boards (PCBs).

7. Hysteresis: The device typically includes built-in hysteresis, which helps prevent false triggering of the reset output due to noise or rapid fluctuations in the supply voltage.

Applications:

• Microcontroller Reset: Commonly used in microcontroller-based systems to ensure proper startup and operation.
• Power Supply Monitoring: Ideal for monitoring power supplies in various electronic devices, including consumer electronics, automotive systems, and industrial equipment.
• Battery-Powered Devices: Suitable for applications where low power consumption is critical, such as portable gadgets and IoT devices.

Electrical Characteristics:

• Supply Voltage Range: The TPS389050 operates over a specified voltage range, typically from 1.0V to 5.5V.
• Reset Threshold Voltage: The reset threshold can be set to various levels, depending on the specific configuration of the device.
• Output Type: The reset output is usually an active-low signal, meaning it goes low when a reset condition is triggered.

Conclusion:

The TPS389050GQDSERQ1 from Texas Instruments is a versatile and reliable voltage supervisor that plays a crucial role in ensuring the stability and reliability of electronic systems. Its combination of adjustable thresholds, low power consumption, and compact design makes it an excellent choice for a wide range of applications in modern electronics.