BQ24702 多化合物电池充电控制器和系统功率选择器

BQ24702
# Series Cells Multiple  
Charge Current(Max)(A) >2  
Charge Status Outputs 1  
Control Topology Switchmode  
Switching Frequency(kHz) 350  
Primary Charge Termination Method Host Controlled  
Pin/Package 24TSSOP  
Vin(Max)(V) 30  
Battery Charge Voltage(V) adjustable
BQ24702 描述

The bq24702/bq24703 is a highly integrated battery charge controller and selector tailored for notebook and sub-notebook PC applications. The bq24702/bq24703 uses dynamic power management (DPM) to minimize battery charge time by maximizing use of available wall-adapter power. This is achieved by dynamically adjusting the battery charge current based on the total system (adapter) current. The bq24702/bq24703 uses a fixed frequency, pulse width modulator (PWM) to accurately control battery charge current and voltage. Charge current limits can be programmed from a keyboard controller DAC or by external resistor dividers from the precision 5-V, ±0.6%, externally bypassed voltage reference (VREF), supplied by the bq24702/bq24703

BQ24702 特性
BQ24702 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
BQ24702PW ACTIVE -40 to 125 2.55 | 1ku TSSOP (PW) | 24 3000 | LARGE T&R  
BQ24702PWG4 ACTIVE -40 to 125 2.55 | 1ku TSSOP (PW) | 24 3000 | LARGE T&R  
BQ24702PWR ACTIVE -40 to 125 2.10 | 1ku TSSOP (PW) | 24 150 | TUBE  
BQ24702PWRG4 ACTIVE -40 to 125 2.10 | 1ku TSSOP (PW) | 24 2000 | LARGE T&R  
BQ24702 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
BQ24702PW Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM BQ24702PW BQ24702PW
BQ24702PWG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM BQ24702PWG4 BQ24702PWG4
BQ24702PWR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM BQ24702PWR BQ24702PWR
BQ24702PWRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM BQ24702PWRG4 BQ24702PWRG4
BQ24702 应用技术支持与电子电路设计开发资源下载
  1. BQ24702 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. PowerPAD™ 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)
BQ24702 相关工具
名称 型号 工具/软件类型
BQ24702 评估模块 BQ24702EVM 开发电路板/EVM