MCP73124-2JAI/MF

Overview

The MCP73124-2JAI/MF is a charge management controller designed for single-cell lithium-ion and lithium-polymer batteries. It operates within an input voltage range of 4.2 V to 13 V and supports output currents from 130 mA to 1.1 A. The device provides a regulated charging voltage of 4.2 V. It is housed in a 10-VFDFN package with an exposed pad, specifically identified as a 10-DFN (3x3) footprint. The component functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates overvoltage protection to prevent circuit damage from input voltage spikes
• Supports standard constant-current/constant-voltage charging profiles for Li-Ion and Li-Po cells
• Includes thermal regulation to manage heat dissipation during high-current charging

Applications

• Portable electronic devices requiring single-cell battery management
• Industrial IoT sensors utilizing Li-Ion power sources
• Medical equipment with strict safety requirements for battery charging

Procurement Notes

Verify the specific suffix '2JAI' against official Microchip documentation to confirm pinout compatibility and electrical tolerances. Ensure the 'MF' designation matches the required tape-and-reel packaging format for your assembly line. Cross-reference the 10-DFN (3x3) footprint dimensions with your PCB layout guidelines to guarantee mechanical fit and thermal performance.

Selection Notes

Select this component when designing systems that require robust overvoltage protection alongside standard single-cell charging capabilities. It is suitable for applications where input supply voltages may fluctuate between 4.2 V and 13 V. Consider the 10-DFN package size if space constraints are critical but adequate thermal dissipation via the exposed pad is feasible.

Part Context

This part belongs to the MCP731xx series of charge management controllers from Microchip Technology. These devices are engineered to provide safe and efficient charging for lithium-based batteries while incorporating protective features against common fault conditions. The series is widely used in consumer electronics and industrial applications requiring reliable power management.

Replacement Considerations

The MCP73123-2JAI/MF is a documented alternative within the same family, offering similar functionality for single-cell charging with overvoltage protection.