This solution offers a complete automotive battery management system for up to 70 series-connected Li-ion cells. The microcontroller (MCU) along with the multi-cell Li-ion battery management devices monitor cell voltage, pack temperature and current, record significant fault detection, and control cell balance.

System Benefits:

  • Best BMS accuracy and long-term drift (LTD), with extended driving range and battery life performance and superior accuracy of 2mV and Six Sigma long-term drift.​
  • Low BOM cost and best FuSa/EMI/EMC/hot plug solution, which alleviates R&D effort and is easy to use with the RH850 automotive MCU family with dedicated drivers and software for BMS.​
  • Jump-start ASIL software development with the ISL78714 complex device driver (CDD), which manages BMS measurements and functional safety (FuSa) features.
  • Supports functional safety up to ASIL D as well as security features.​
  • Intelligent power device for external load control.




  • Battery pack management to ensure safe operation and long life for batteries in EV vehicles – 2W, 3W, light commercial vehicles, etc.

Winning Combinations Interactive Diagram

Select a block to discover products for your design

AS202 AS201 AS201 AS201 Current Amplifier Current Amplifier Current Amplifier PMIC PMIC PMIC Photocouplers Photocouplers Photocouplers CAN 2 CAN CAN LIN 2 LIN LIN RS-232 RS-232 RS-232 Sheet.314 Sheet.315 Sheet.316 Sheet.317 Sheet.323 Sheet.324 Resistor.179 Sheet.311 Sheet.312 Sheet.335 Sheet.351 Sheet.352 Sheet.361 Sheet.375 Sheet.376 Sheet.385 Sheet.391 Sheet.392 Sheet.396 Connector Arrow.418 Connector Arrow.419 Sheet.426 Connector Arrow.428 Intelligent Power Device 1 Intelligent Power Device Intelligent Power Device Intelligent Power Device 2 Intelligent Power Device Intelligent Power Device Connector Arrow.431 Intelligent Power Device 3 Intelligent Power Device Intelligent Power Device Connector Arrow.433 Sheet.438 Dynamic connector Sheet.449 Connector Arrow Connector Arrow.453 Connector Arrow.454 Sheet.458 Sheet.461 Battery Management 4 Battery Management Battery Management Inductor.439 Sheet.440 Sheet.441 Sheet.442 Inductor.300 Sheet.226 Sheet.227 Sheet.228 Battery Management 3 Battery Management Battery Management EN EN EN Sheet.517 Sheet.518 Sheet.519 Sheet.520 Sheet.521 Sheet.522 Sheet.523 Sheet.524 Sheet.525 Sheet.526 Sheet.527 Sheet.528 Sheet.529 Sheet.530 Sheet.531 Sheet.532 Sheet.533 Sheet.534 Sheet.535 Sheet.536 Sheet.537 Connector dotted line Connector dotted line.540 Connector dotted line.541 Battery Management 2 Battery Management Battery Management Battery Management 1 Battery Management Battery Management Connector Arrow.546 Sheet.547 Battery.328 Sheet.207 Sheet.208 Sheet.209 Sheet.210 12V Battery 12V Battery 12V Battery Connector Arrow.548 Fan Fan Fan Pump Pump Pump Relay Relay Relay Vehicle Network Vehicle Network VehicleNetwork Battery 1 Battery 1 Battery 1.559 Battery 1.560 Battery 2 Battery 2 Battery 2.567 Battery 2.568 Battery 3 Battery 3 Battery 3.571 Battery 3.572 MCU MCU MCU MCU CAN 1 CAN CAN LIN 1 LIN LIN
Exiting Interactive Block Diagram


Software & Tool Pages

Software title
Software type
Automotive BMS Application Model & Software
BMS application models and software reduce the effort and time required to develop applications to estimate State Of Charge and State Of Health.
Software Package Renesas
1 item


Type Title Date
Flyer PDF 426 KB
1 item
Battery Management Solution for Electric Vehicles

In electric vehicles today, there are two key parameters, the state of health and the state of charge. Renesas' Battery Management Solution (BMS) device supports these parameters. This demonstration highlights Renesas' ISL78714 automotive-grade Li-ion battery manager IC and the RH850/P1M 32-bit automotive microcontroller (MCU). In addition to the ISL78714 battery manager IC and RH850 MCU, the demo board is supported by a host of other Renesas products including the RAA270005 power management IC (PMIC), RV1S2752Q photocoupler, and the uPD166031A/32/33/34 and RAJ2800024/34/44 integrated power devices (IPDs).

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