RAJ240045DNP

2 to 4 Series Li-ion Battery Manager

OVERVIEW

The RAJ240045DNP is a Li-ion battery management and fuel gauge IC that supports two to four series connected cells. This device provides complete battery and pack monitoring and control, including automatic shutdown and recovery from out-of-bounds conditions, automatic cell balancing, and high accuracy remaining state of charge reporting.

The RAJ24045 combines an RL78 MCU and tailored analog front end to serve as a programmable standalone battery management solution.

KEY FEATURES

    • Two to four cell voltage monitors support various Li-ion chemistries
    • Flexible, stand-alone pack control with built-in microcontroller
    • Programmable voltage protection and overcurrent protection levels
    • Programmable detection/recovery times for overvoltage, undervoltage, overcurrent, and short-circuit conditions
    • Integrated charge/discharge FET drive circuitry with a built-in charge pump supports high-side N-channel FETs
    • Selectable cell balancing using internal FETs
    • Multiple low power modes
    • Charge or discharge current detection resumes normal scan rates

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
RAJ240045DNP
Basic Information
封装类型
QFN
引脚数
32
供电电压 (V)
4.0 to 25
系列
Fuel Gauge IC (FGIC)
备注
Li-ION battery Fuel gauge
应用
Battery Management Unit
功能
Battery fuel gauging
目标应用
Portable equipment
活动
Battery Protection, Fuel gauging
生产状态
Mass Production

Dimensions