18 Channel Li-Ion Battery Cell Controller IC ASIL D
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BMA7118 is an Automotive Li-Ion battery cell controller IC with a dedicated, high accuracy ADC per voltage measurement channel with high synchronization capability (required for EIS). Introducing a product family approach where products are pin compatible and use the same software, you can upgrade to EIS at low cost. BMA7118 offers low 5 mA current consumption due to its integrated DC-to-DC converter. A fully redundant and independent internal architecture achieves ASIL D Functional Safety.
Product Details
Features
Key Features
- From 8 to 18 cells per device
- Dedicated, high accuracy ADC per voltage measurement channel with high synchronization capability required for EIS
- Typical ±0.8 mV measurement error with ultra low long-term drift
- ISO 26262 ASIL D support for cell voltage and temperature measurements
- External temperature and auxiliary voltage measurements
- Isolated daisy chain up to 62 nodes or SPI communication
- Diagnostics, functional safety and robustness
- Low external BOM cost