The MIC803-46D3VM3 is a voltage supervisor manufactured by Micrel (now Microchip Technology). It is designed to monitor the power supply voltage of microprocessors (µPs), microcontrollers (µCs), and digital signal processors (DSPs). It provides a reset signal when the supply voltage falls below a specified threshold, ensuring proper system operation and preventing data corruption.
Applications
- Microprocessor (µP) Systems
- Microcontroller (µC) Systems
- Digital Signal Processor (DSP) Systems
- Embedded Systems
- Power Supply Monitoring
Features
- Precision Voltage Monitoring: Accurately monitors the supply voltage.
- Fixed Reset Threshold: Provides a reset signal when the voltage drops below the specified threshold (4.63V in this case).
- Active-Low Reset Output: The reset output is low when the voltage is below the threshold.
- Open-Drain Output: Requires an external pull-up resistor.
- Small Package: Available in a small SOT-23 package.
Benefits
- System Reliability: Ensures reliable system operation by preventing incorrect code execution during power-up or brownout conditions.
- Data Protection: Protects against data corruption by resetting the system when the voltage is too low.
- Simple Implementation: Easy to use and requires minimal external components.
- Compact Size: The small SOT-23 package saves board space.
- Cost-Effective: Provides a cost-effective solution for voltage monitoring.
Technical Specifications
The MIC803-46D3VM3 has a fixed reset threshold voltage of 4.63V. It operates from a supply voltage of 1.6V to 5.5V. The reset timeout period is typically 140 ms. The reset output is active-low and open-drain. It comes in a SOT-23 package. The operating temperature range is -40°C to +85°C.
