Multibay charger for 2S configuration

The MCP1630 Li-lon reference design is a flexible charger design able to charging as much as two single-cell, Li-lon battery packs in a parallel configuration. The design can work with a large enter voltage vary from 10V to 28V and has a number of security options. The ability prepare used for this reference design is a single-ended primary-inductor converter (SEPIC). This reference design is appropriate to be used as a stand-alone charger for the Li-Ion battery pack.

As proven within the determine above, the reference design might be daisy-chained to cost as much as 32 cells by combining 16 reference design modules in parallel. The reference design employs a PIC microcontroller and programming header pins that enables the person so as to add proprietary options by coding the microcontroller. Furthermore, the reference design affords the flexibleness to optimize the charging algorithm for newer battery applied sciences. The reference design additionally employs a twin operational Op-Amp and is able to robotically detecting the standing of the battery pack.

The working of the charger might be defined by means of the firmware circulate chart of the reference design proven under.

Firmware Circulate Chart

Options of MCP1630

• Programmable parameters – modified in firmware
• Flexibility to optimize the charging algorithm for brand new battery know-how and add proprietary options by coding the microcontroller.
• Managed soft-start.

Security Options

• Over Voltage Safety (battery eliminated).
• Over Cost Safety to forestall the battery from turning into dangerously overcharged.
• Over Present Safety within the occasion of a shorted battery.
• Battery Reversal Safety.
• Enter Brief Circuit Safety.
• Over Temperature Safety to forestall the battery from reaching too excessive a temperature throughout cost.
• Quick cost termination if the battery temperature is exterior a preset window.

Design Sources

All of the design assets such because the documentation, BOM, PCB format and Gerber recordsdata are supplied by the corporate, however as a way to entry the recordsdata, you first must register together with your e-mail deal with.

You could find the design assets right here.