BQ27505-J4 系统端 Impedance TrackTM 电量监测

BQ27505-J4 描述

The Texas Instruments bq27505-J4 system-side Li-Ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-Ion battery packs. The device requires little system micro-controller firmware development. The bq27505-J4 resides on the system’s main board and manages an embedded battery (nonremovable) or a removable battery pack. The bq27505-J4 uses the patented Impedance Track algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (min), battery voltage (mV), temperature (°C) and state of health(%). Battery fuel gauging with the bq27505-J4 requires only PACK+ (P+), PACK– (P–), and Thermistor (T) connections to a removable battery pack or embedded battery circuit

	BQ27505-J4
Communication Interface	I2C
# Series Cells	1
Pin/Package	12DSBGA
Approx. Price (US$)	1.40 | 1ku
Operating Temperature Range(°C)	-40 to 85
Implementation	System

BQ27505-J4 特性

• Battery Fuel Gauge for 1-Series Li-Ion Applications
• Resides on System Main Board
  • Works With Embedded or Removable Battery Packs
• Microcontroller Peripheral Provides:
  • Accurate Battery Fuel Gauging
  • Internal Temperature Sensor for Battery Temperature Reporting
  • Battery Low Interrupt Warning
  • Battery Insertion Indicator
  • Configurable Level of State of Charge (SOC) Interrupts
  • State of Health Indicator
  • 96 Bytes of Non-Volatile Scratch-Pad FLASH
• Battery Fuel Gauge Based on Patented Impedance Track Technology
  • Models the Battery Discharge Curve for Accurate Time-to-Empty Predictions
  • Automatically Adjusts for Battery Aging, Battery Self-Discharge, and Temperature/Rate Inefficiencies
  • Low-Value Sense Resistor (10 mOhm or Less)
• 400-kHz I2C Interface for Connection to System Microcontroller Port
• In a 12-Pin NanoFree (CSP) Packaging
• APPLICATIONS
  • Smartphones and PDAs
  • Digital Still and Video Cameras

BQ27505-J4 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 | 引脚	封装数量 | 封装载体	丝印标记
BQ27505YZGR-J4	ACTIVE	-40 to 85	1.40 | 1ku	DSBGA (YZG) | 12	3000 | LARGE T&R	BQ27505
BQ27505YZGT-J4	ACTIVE	-40 to 85	1.65 | 1ku	DSBGA (YZG) | 12	250 | SMALL T&R	BQ27505

BQ27505-J4 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
BQ27505YZGR-J4	Green (RoHS & no Sb/Br)	SNAGCU	Level-2-260C-1 YEAR	BQ27505YZGR-J4	BQ27505YZGR-J4
BQ27505YZGT-J4	Green (RoHS & no Sb/Br)	SNAGCU	Level-2-260C-1 YEAR	BQ27505YZGT-J4	BQ27505YZGT-J4

BQ27505-J4 应用技术支持与电子电路设计开发资源下载

1. BQ27505-J4 数据资料 dataSheet 下载.PDF
2. TI 德州仪器电池管理产品选型与价格 . xls
3. 照明和显示屏电源选择指南 (PDF 1427 KB)
4. QFN Layout Guidelines (PDF 1279 KB)
5. 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
6. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A) (PDF 2206 KB)
7. PowerPADTM Made Easy (PDF 57 KB)
8. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
9. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
10. 所选封装材料的热学和电学性质 (PDF 645 KB)
11. 高速数据转换 (PDF 1967 KB)