803-3

Bridge Rectifier Overview

The MIC803-31D3VM3-TR is a single-voltage supervisor circuit manufactured by Microchip Technology, designed for microprocessor-based systems. It features an open-drain reset output that asserts when the supply voltage drops below the 3.08V threshold. The device provides a minimum reset timeout of 140ms to ensure stable power-up. It operates within a supply range of 1V to 5.5V with a typical quiescent current of 4.5µA. Accuracy is specified at 2.5%, and it functions across a temperature range of -40°C to +125°C in a SOT-23-3 package.

Bridge Rectifier Feature Summary

• Provides accurate power supply monitoring and reset generation for microprocessor systems
• Features an open-drain reset output that activates upon undervoltage conditions
• Maintains reset signal during power-up until voltage exceeds threshold plus timeout period

Bridge Rectifier Applications

• Microprocessor system power supervision
• Embedded controller reset generation
• Battery-powered device voltage monitoring

Bridge Rectifier Procurement Notes

Verify the specific suffix codes (e.g., D3VM3) against the manufacturer's datasheet to confirm threshold voltage and package type. Ensure compatibility with the target PCB footprint, typically SOT-23-3 or SC-70-3. Confirm RoHS compliance status if required by project specifications. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Bridge Rectifier Selection Notes

Select based on the required reset threshold voltage, such as 3.08V for the MIC803-31 variant. Consider the package size constraints, choosing between SOT-23-3 or SC-70-3. Evaluate quiescent current requirements for battery-operated applications, noting the low 4.5µA consumption. Verify operating temperature range suitability for the intended environment.

Bridge Rectifier Part Context

The MIC803 series belongs to Microchip's portfolio of simple supervisory circuits. These devices are engineered for basic power management tasks without complex watchdog or manual reset features. The series supports various threshold voltages and packages to accommodate diverse embedded design needs.

Bridge Rectifier Replacement Considerations

Direct substitutes include other MIC803 variants with different threshold voltages or packages, such as MIC803-30D3VC3-TR. Generic equivalents may exist but require verification of electrical parameters and pinout compatibility.