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Battery Management

Dedicated 1 package solution with MCU and AFE for Battery Management System provides intelligent battery system by constantly monitoring the battery state.

Advantages

Safety Features

- Built-in self-diagnostic functions for microcontroller and analog front-end (AFE)

- Low power mode for safe storage

High Accuracy

- High-precision delta-sigma A/D converter specialized for current, voltage, and temperature detection

- Battery level calculation takes battery deterioration into account

Design Support and Tools

- Starter Kits include evaluation board with reference design and sample firmware for fast prototyping.

- Application Notes and training videos (Under preparing)

- Regional support : Please consult your Renesas sales representative or office.

 

Product Overview

Product

Cells

Voltage

[V]

ROM/RAM

Serial

Interfaces

I/O

Key Features

Package

Min

Max

RAJ240045

2

4

4 - 25

64 KB/4 KB

I²C, UART

12

Small package

32-pin QFN

RAJ240500

1

3

4 - 25

128 KB/5.5 KB

I²C, UART

9

Built-in charger

40-pin QFN

RAJ240080

2

5

4 - 28

64 KB/5.5 KB

I²C, UART

22

Multiple GPIO

48-pin LQFP

RAJ240090

(New)

3

8

4 - 50

128 KB/7 KB

I²C, UART, CAN

31

Multiple GPIO

High voltage

MCU and AFE in a single package

64-pin LQFP

RAJ240100

(New)

3

10

4 - 50

128 KB/7 KB

I²C, UART, CAN

31

Multiple GPIO

High voltage

MCU and AFE in a single package

64-pin LQFP

 

 

Typical Applications

Click here for details.

- Power Assisted Bicycle

- Power tool

 

Block Diagram

 

 

Development Environment

Reference Board:

- Evaluate the device characteristics and performance

- E1 connector for on-chip debugging

 

Sample Program:

- Provide the source code of sample code with basic function of battery control.

- Output the battery status such as Voltage, Current and Temperature via I2C Bus I/F

 

Standard Firmware:

- Provide the object code of standard F/W to achieve the safety control and capacity

calculation by only parameter setting.

 

When you would like to get the reference boards, sample codes and standard firmware, please contact to your regional sales channels.

Contact