RAJ240055DNP中文资料2 to 4 Series Li-ion Battery Fuel Gauge IC数据手册Renesas规格书

描述 Description

RAJ240055/RAJ240057 are Renesas battery fuel gauge and management devices which combine a separate MCU and AFE blocks in a single package to accomplish various battery protection and management functions. RAJ240055/RAJ240057 incorporate advanced battery management features such as primary and secondary protection, voltage and current measurement, current integrating, and host communication interface. Through user programmable control firmware and configuration data stored in the onboard MCU’s embedded flash memory, the embedded analog and digital hardware circuits offer optimum battery management operations including high accuracy remaining capacity estimation and battery safety.

特性 Features

• Fully integrated battery management solution with battery capacity measurement and programmable protection capability.
• Supports up to 4 Li-ion or Li-Polymer battery cells in series.
• Supports various self-diagnosis functions for functional safety.
• Integrated with Renesas Ultra Low Power RL78 CPU core for multi-function process.
• Memory 
Code flash memory: 64 kB (RAJ240055) / 128 kB (RAJ240057) 
Data flash memory (up to 100,000 erase/write cycles): 4 kB 
SRAM: 4 kB (RAJ240055) / 7 kB (RAJ240057)
• Clock generator 
High speed on-chip oscillator: up to 32 MHz 
Low speed on-chip oscillator: 15 kHz 
AFE high speed on-chip oscillator: 4.194 MHz 
AFE low speed on-chip oscillator: 131.072 kHz
• General Purpose I/O Ports 
Total: 12 pins 
CMOS input/output: 6, CMOS input: 1 
N-ch open drain Input/output [6 V tolerance]: 3 
High voltage input [30 V tolerance]: 1 
High voltage input/output [VCC tolerance]: 1
• Serial interface 
CSI (SPI): 1 channel 
UART: 2 channels 
Simplified I2C: 1 channel 
I2C: 1 channel
• Timer 
MCU 16-bit timer: 6 channels 
MCU 12-bit interval timer: 1 channel 
AFE timer: 2 channels
• AFE timer A: setting range: 125 ms to 64 s
• AFE timer B: setting range：61 us to 2 s