Microcontroller controls battery charger


Posted on Aug 16, 2012

Figure 1 is a generalized block diagram of a multichemistry battery charger. A COP8ACC5 µC handles its key charging features. The µC is available in a 20-pin (15 I/O pins) SOIC or a 28-pin (23 I/O pins) SOIC/DIP. It contains 4 kbits of internal ROM.



The controller`s A/D inputs monitor the battery-voltage pin, ID pin, and thermistor pin. For more complex charging systems, you can add external EEPROM via the Microwire serial interface. Such an external EEPROM might be useful for storing battery-sp




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