Datasheet > RAJ240045DNP

RAJ240045DNP

更新时间： 2024-11-08 14:57:51

品牌	Logo	应用领域
瑞萨 - RENESAS		电池仪表
页数	文件大小	规格书
60页	2795K
描述
2 to 4 Series Li-ion Battery Fuel Gauge IC

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RAJ240045DNP 数据手册

R01DS0297EJ0101

Rev.1.01

RAJ240045

2 to 4 Series Li-ion Battery Manager

Feb. 23, 2018

1. Introduction

1.1

Features

 Fully integrated battery management solution with

battery capacity measurement and programmable

protection capability.

 Current integration circuit

18-bit resolution sigma-delta A/D converter

 Supports 2-4 series Li-ion or Li-Polymer battery cells

 Integrated with Renesas Ultra Low Power RL78 CPU core

for multi-function process

 Memory

 Impedance measurement circuit

Simultaneous measurement of battery voltage and current

 Over current detection circuit

Short circuit current detection

Code flash memory: 64KB

Data flash memory (up to 100,000 erase/write cycles): 4 KB

SRAM: 4 KB

Charge overcurrent detection

Discharge overcurrent detection

Charge wakeup current detection

Discharge wakeup current detection

 Clock generator

High speed on-chip oscillator: up to 32 MHz

Low speed on-chip oscillator: 15 KHz

AFE on-chip oscillator: 4.194MHz

 General Purpose I/O Ports

Total: 12 pins

 Series regulator

3.3V CREG2

1.8V CREG1

CMOS input/output: 6

CMOS input: 2

 Charge and Discharge MOSFET control

High side Nch MOSFET drive circuit embedded

Programmable MOSFET control by 8-bit PWM

N-ch open drain: 2

High voltage input [VCC tolerance]: 1

High voltage output [VCC tolerance]: 1

 Serial interface

 Fuse control

CSI (SPI): 1 channel

FUSEOUT pin can support fuse blow function.

I2C: 1 channel

UART: 1 channel

 Support Intel® Dynamic Battery Power Technology

Simplified I2C: 1 channel

(Intel® DBPT) ^Note

 Timer

MCU 16-bit timer: 5 channels

MCU 12-bit interval timer: 1 channel

AFE timer: 2 channels

 Voltage and temperature condition

Power supply voltage: VCC = 4.0 to 25 V

Operating ambient temperature: Ta = -20 to +85°C

AFE timer A: setting range: 125 ms to 64 s

AFE timer B: setting range：30.52 us to 125 ms

 Package Information

 Embedded A/D converter

32 pin plastic mold QFN

AFE 15-bit resolution sigma-delta A/D converter

([Body] 4.0 mm x 4.0 mm, 0.4 mm pitch)

Note

Intel and the Intel logo are trademarks of Intel Corporation or its subsidiaries in the U.S. and/or other countries.

1.2

Applications

• Notebook PC, Tablet PC, Docking Station

• Handheld measurement equipment, POS system

• UPS, Power bank

1.3

Description

RAJ240045 is Renesas Li-ion battery fuel gauge IC (FGIC) which consists of a MCU device and an AFE device in a single

package. Pack with a variety of battery management features and Renesas RL78 CPU core which has multiple low power

modes and capable of achieving high performance in ultra-low power operation. RAJ240045 fuel gauge IC has control

firmware stored in embedded flash memory to control attached embedded analog and digital circuits to execute battery

voltage / current / temperature measurement, remaining capacity estimation, over current / voltage / temperature protection

and other battery management operations.

R01DS0297EJ0101 Rev.1.01

Feb. 23, 2018

Page 1 of 60

12 3 4 5 6 7...60

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