Microchip Technology Intros MCP7386X Battery Chargers
Microchip Technology Inc. (Chandler, AZ), a provider of microcontroller (MCU) and analog semiconductors, introduced its new MCP7386X, a single-cell and a dual-cell, fully integrated, charge-management controller, which features a charge-safety timer and a temperature monitor.
With an overall system accuracy of ±0.5%, the devices maximize system run time between charges and ensure that the battery cell capacity is fully utilized without cycle-life degradation. The onboard thermal regulation optimizes charge-cycle time, while maintaining the devices’ reliability and simplifying the board design.
The MCP7386X devices extract information regarding charge and temperature status. Onboard safety timers and thermal monitor provide time- and temperature-based charge termination, protecting applications from defective batteries and increasing the battery safety. The MCP7386X controllers also feature reverse-blocking protection, which allows current from a correctly installed battery to flow to the load and block current flow to a backward-installed battery. In addition, the controllers extend battery life with a reverse leakage current of less than 0.4 µA (typical) and supply a programmable fast-charge current up to 1.2 A.
The MCP7386X family is available in 4.1 V/4.2 V and 8.2 V/8.4 V to accommodate a variety of portable products that are powered by one-cell or two-cell lithium-ion/lithium-polymer batteries. The MCP7386X devices are offered in a lead-free, lead-less, 4 x 4 QFN package. Pricing in 1,000-unit quantities is $1.45 each for the MCP73861 and $1.64 each for the MCP73862.
