MCP809M3-2.93/NOPB PMIC - Supervisors by Texas Instruments

The MCP809M3-2.93/NOPB is a voltage supervisor integrated circuit (IC) manufactured by Texas Instruments. It is designed to monitor 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 MCP809M3-2.93/NOPB monitors the supply voltage and ensures that the voltage remains within a specified range. If the voltage drops below the threshold, the IC generates a reset signal.

2. Reset Threshold: This specific model has a reset threshold voltage of 2.93V. This means that when the supply voltage drops below this level, the reset output is activated.

3. Active Low Reset Output: The reset output is active low, meaning that it goes low (0V) when a reset condition is detected. This output can be connected to the reset pin of a microcontroller or other digital logic devices.

4. Reset Timeout: The MCP809M3-2.93/NOPB features a built-in reset timeout period, which ensures that the reset signal remains active for a certain duration after the supply voltage has returned to a safe level. This helps to ensure that the system has stabilized before resuming normal operation.

5. Low Supply Current: The device operates with a low supply current, making it suitable for battery-powered applications where power efficiency is critical.

6. Temperature Range: The MCP809M3-2.93/NOPB is designed to operate over a wide temperature range, typically from -40°C to +125°C, making it suitable for various industrial and automotive applications.

7. Small Package Size: The IC is available in a compact SOT-23 package, which is ideal for space-constrained designs. This small footprint allows for easy integration into various electronic circuits.

8. No External Components Required: The MCP809M3-2.93/NOPB is designed to operate without the need for external components, simplifying the design process and reducing the overall component count.

Applications:

• Microcontroller reset circuits
• Power management systems
• Automotive electronics
• Industrial control systems
• Battery-powered devices

Electrical Characteristics:

• Supply Voltage Range: Typically operates from 1.0V to 5.5V.
• Reset Threshold Voltage: 2.93V (typical).
• Reset Timeout Period: Typically around 200 ms (this can vary based on the specific model and configuration).
• Output Drive Capability: Can typically sink a certain amount of current, allowing it to drive external components directly.

Conclusion:

The MCP809M3-2.93/NOPB from Texas Instruments is a reliable and efficient voltage supervisor that provides essential reset functionality for digital systems. Its low power consumption, wide operating temperature range, and compact size make it an excellent choice for a variety of applications where voltage monitoring and reset capabilities are required.