MCHPMCP73844-840I/MS
Overview
The MCP73844-840I/MS is a highly integrated linear charge management controller designed for dual-cell 8.4V Lithium-Ion or Lithium-Polymer battery packs. It provides high-accuracy voltage regulation with a maximum tolerance of 0.5 percent and includes programmable safety timers to ensure reliable charging cycles. The device is housed in a compact 8-MSOP package, making it suitable for space-constrained portable electronics.
Why Choose This Part
The IC features an automatic power-down mode when input power is removed, drawing only 0.25uA to prevent battery drainage. It also includes an integrated charge status output for direct LED drive and programmable charge currents for flexible thermal management.
Applications
Key Specifications
Getting Started
To evaluate this part, design a PCB with an external P-channel MOSFET and current sense resistor as specified in the MCP73844 datasheet. Ensure adequate thermal relief for the external MOSFET, as this is a linear controller where power dissipation occurs off-chip.
