Renesas' lithium-ion battery management (Li-ion) solution is built around a battery management IC that offers a low-power microcontroller (MCU) and high-performance analog front-end (AFE) in a single package, along with an evaluation board, sample code and other tools to support the development of safe, secure and high-performance Li-ion batteries.
Target applications for Li-ion battery management solutions include notebook and laptop computers, power tools, cordless vacuums, and motor-assisted bikes.
Safety Control
Enable high battery pack safety with multiple fail-safe detection functions
- Built-in self-diagnostic functions using an integrated MCU and AFE
- Ultra-low power storage mode
- Over/Undervoltage
- Overcurrent
- Over/Under temperature
- FET control during failure
- Fuse blow
Capacity Calculation
Continuous high accuracy battery capacity detection
- Delta-Sigma analog-to-digital converter optimized for current, voltage and temperature measurement
- Adjusts remaining capacity calculation dynamically for aged and deteriorated cells
- Capacity calculation with built-in learning
- Current and voltage calibration functions
- Battery history and record keeping function
Comprehensive Development Environment
Starter kits with an evaluation board (EVB), sample code and user's manual for easy evaluation
- Evaluate the device performance and operating behavior using the EVB; includes an E1 connector for easy on-chip debugging
- Available sample program source code for all basic battery management functions
- Communication with PC via I2C Bus
- GUI I/F displays the battery parameter status such as voltage, current and temperature
For a starter kit, contact your local sales representative or distributor.
System Block Diagram
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Recommended Products
Applications | Series Cells | Product | Features |
---|---|---|---|
PC, consumer, mobile devices | 2 - 4 | RAJ240045 RAJ240047 |
Small package |
Drones, toy robots, power tools, cordless vacuums | 2 - 5 | RAJ240071 RAJ240075 |
Small package |
RAJ240080 | Multiple GPIO | ||
Power tools, cordless vacuums, motor-assisted bike, energy storage system (ESS), industrial uses | 3 - 8 3 - 10 |
RAJ240090 RAJ240100 |
Multiple GPIO, high voltage, MCU and AFE in a single package |