MCP73831T-4ADI/OT

Battery Chargers Overview

The MCP73831T-4ADI/OT is a linear lithium-ion or lithium-polymer battery charge management controller manufactured by Microchip Technology. It operates within an input voltage range of 3.75 V to 6 V and provides a regulated output voltage of 4.4 V. The device supports an output current capability ranging from 15 mA up to 500 mA. It is housed in a compact SOT-23 package with five pins, suitable for surface-mount installation. The component functions reliably across an operating temperature range of -40 °C to +85 °C.

Battery Chargers Feature Summary

• Linear charge management controller designed specifically for lithium-ion and lithium-polymer battery chemistries
• Integrated thermal regulation to manage heat dissipation during the charging process
• Supports preconditioning charge cycles for deeply discharged battery cells

Battery Chargers Applications

• Portable electronic devices requiring single-cell lithium battery charging
• Consumer electronics utilizing lithium-polymer power sources
• Battery-powered handheld instruments

Battery Chargers Procurement Notes

Verify the specific suffix '4ADI' corresponds to the required 4.4 V output voltage setting before procurement. Confirm the 'OT' suffix indicates the tape-and-reel packaging format if automated assembly is planned. Ensure the supplier source is authorized to guarantee component authenticity and traceability. Cross-reference the datasheet revision date to confirm compatibility with design specifications.

Battery Chargers Selection Notes

Select this component when a fixed 4.4 V charging profile is required for the target battery system. Consider the 500 mA maximum output current limit against the application's peak charging requirements. Evaluate the SOT-23 package dimensions against available PCB real estate constraints. Verify that the 3.75 V minimum input voltage aligns with the upstream power supply capabilities.

Battery Chargers Part Context

This part belongs to the MCP73831/MCP73832 series of linear charge controllers. The series is characterized by its simplicity and low external component count. Variants within the series differ primarily in their fixed output voltage settings and maximum charge current ratings. The MCP73831T-4ADI/OT represents a specific configuration optimized for 4.4 V applications.

Battery Chargers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Direct replacements require matching the 4.4 V output voltage, SOT-23-5 package, and compatible electrical characteristics.