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Atmel launches battery management chipset
By siliconindia
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Monday, 12 October 2009, 17:48 IST |
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San Jose: Semiconductors manufacturer Atmel has unveiled a new Li-Ion battery management chipset for high-cell-count automotive and industrial applications. The company claims that the chipset can offer cost savings of up to 60 percent, compared to existing solutions.
The chipset can be used in applications such as electrical or hybrid vehicles, e-bikes or uninterruptible power supplies (UPS). Atmel claims to be the only supplier to currently offer a complete two-chip protection solution including all necessary functionalities with the highest safety standards, reports the EE Times. The ATA6870/71 chipset features the 30-volt complementary metal oxide semiconductor (CMOS) technology. It also includes a hot plug-in capability, six integrated analog-to-digital (AD) converters with a cut-off frequency lower than 30 Hertz (Hz) and a stackable microcontroller power supply.
Since Li-Ion batteries are sensitive against overcharging and deep discharge, they may burn or explode. To prevent this, Atmel provides a special safety strategy with its secondary protection device, the ATA6871. The safety feature monitors the battery cells' voltage and temperature, and prevents Li-Ion batteries from thermal runaway or exploding. The ATA6870 provides a dedicated AD converter for each battery cell to be monitored.
