Li-ion battery-management chipset monitors up to 16 cells
Voltage measurement accuracy is ±10 mV typical, while charge/discharge current measurement accuracy ±0.5 A typical. A built-in 100-mA cell-balancing switch eliminates the need for an external circuit for cell balancing. Operating current consumption is 250 µA typical and just 0.1 µA in power-down mode. The MK5238 also offers an LED driver for displaying the remaining battery charge using up to five external LEDs.
The ML5238 analog front-end IC is housed in a QFP44; the ML610Q496P ARM-based microcontroller comes in a TQFP48. Both devices have an operating temperature range of –40°C to +85°C.
MK5238 chipset product page
Lapis Semiconductor, www.lapis-semi.com/en
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