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Battery Fuel Gauges

Renesas offers a dedicated single-package solution with an MCU and analog front end (AFE) for battery management systems that constantly monitors the battery state.

Safety Features

  • Built-in self-diagnostic functions for microcontroller and analog front-end (AFE)
  • Low power mode for safe storage
  • Protection functions (over/under voltage, over charge/discharge current, short current, over/under temperature)

High Accuracy

  • High-precision delta-sigma A/D converter specialized for current, voltage, and temperature detection
  • Battery level calculation takes battery deterioration into account
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For select products in this category, Renesas offers Battery Management System with Fixed Firmware (R-BMS F) which is a fixed firmware system designed for RAJ240100, RAJ240090, and RAJ240055. This system simplifies the design process by eliminating the need for firmware expertise, enabling faster development and time-to-market.

The evaluation kits (EVKs) include intuitive GUI tools that offer a flexible battery management solution for precise state-of-charge monitoring. The RTK0EF0136DK0002BU EVK pairs with RAJ240090/100 FGIC, while the RTK0EF0163DK0002BU EVK utilizes RAJ240055 FGIC, providing versatile, ready-to-use platforms for efficient battery management design.

Product Selector: Battery Fuel Gauges

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Documentation

Type Title Date
Flyer PDF 283 KB
Brochure PDF 5.49 MB 日本語
Flyer PDF 198 KB
Brochure PDF 1.11 MB
4 items

Videos & Training

Lithium-Ion Battery Management Solution

Learn about how Renesas' Li-ion battery management solution solves the issues of cell-balancing and safety.

Tools & Resources