MCP3905L-I/SS

Overview

The MCP3905L-I/SS is a single-phase energy metering integrated circuit manufactured by Microchip Technology. It operates within a supply voltage range of 4.5 V to 5.5 V and draws a supply current of 2.7 mA. The device features an input impedance of 390 kΩ and achieves a measurement error of 0.1%. It utilizes a 24-SSOP package with dimensions of 5.30 mm width. The component supports I/O voltages with a high level of 2.4 V and a low level of 0.85 V. It is designed for surface mount installation and functions reliably across a temperature range of -40°C to 85°C.

Feature Summary

• Provides single-phase energy metering capabilities with high accuracy.
• Integrates analog front-end processing for direct signal conditioning.
• Supports standard surface mount packaging for automated assembly.

Applications

• Single-phase residential electricity meters
• Commercial power monitoring systems
• Energy management modules

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and temperature grade. Ensure compatibility with existing board layouts regarding the 24-SSOP footprint. Confirm that the operating voltage range aligns with the system power supply design. Check for any recent product change notices affecting manufacturing locations or materials.

Selection Notes

Select this component for applications requiring precise single-phase energy measurement in compact designs. Consider the 24-SSOP package size when determining board space allocation. Evaluate the -40°C to 85°C operating range against environmental conditions. Verify interface voltage levels match the connected microcontroller or processor logic.

Part Context

This part belongs to the MCP3905 family of energy metering ICs from Microchip Technology. It is designed for cost-effective, high-accuracy power monitoring solutions. The family includes variants with different packages and temperature ratings. It serves as a core component for digital energy meters replacing traditional electromechanical designs.

Replacement Considerations

MCP3905AT-I/SS and MCP3906A-I/SS are related parts in the same family. Verify pinout and functional equivalence before substitution. Check if alternative suffixes indicate different packaging or temperature ranges. Consult official documentation for detailed cross-reference information.