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BQ24400 可编程的镍镉电池/镍氢电池快速充电管理设备

BQ24400 描述

The bq24400 is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd) and nickel metal-hydride (NiMH) in single or multi-cell applications.

The bq24400 provides these charge termination criteria:

For safety, the bq24400 inhibits fast charge until the battery voltage and temperature are within user-defined limits. If the battery voltage is below the low-voltage threshold, thebq24400 uses trickle-harge to condition the battery. For NiMH batteries, the bq24400 provides an optional top-off charge to maximize the battery capacity.

The integrated high-speed comparator allows the bq24400 to be the basis for a complete, high-efficiency battery charger circuit for nickel-based chemistries

BQ24400 BQ24401
# Series Cells Multiple Multiple
Charge Current(Max)(A) >2 >2
Charge Status Outputs 1 1
Control Topology Switchmode Switchmode
Switching Frequency(kHz) 500 500
Primary Charge Termination Method PVD dT/dt
Pin/Package 8SOIC, 8TSSOP 8SOIC, 8TSSOP
Vin(Max)(V) 7 7
BQ24400 特性
BQ24400 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
BQ24400D ACTIVE -20 to 70 1.85 | 1ku SOIC (D) | 8 75 | TUBE  
BQ24400DG4 ACTIVE -20 to 70 1.85 | 1ku SOIC (D) | 8 75 | TUBE  
BQ24400DR ACTIVE -20 to 70 1.55 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
BQ24400DRG4 ACTIVE -20 to 70 1.55 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
BQ24400PW ACTIVE -20 to 70 1.85 | 1ku TSSOP (PW) | 8 150 | TUBE  
BQ24400PWG4 ACTIVE -20 to 70 1.85 | 1ku TSSOP (PW) | 8 150 | TUBE  
BQ24400PWR ACTIVE -20 to 70 1.55 | 1ku TSSOP (PW) | 8 2000 | LARGE T&R  
BQ24400PWRG4 ACTIVE -20 to 70 1.55 | 1ku TSSOP (PW) | 8 2000 | LARGE T&R  
BQ24400 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
BQ24400D Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM BQ24400D BQ24400D
BQ24400DG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM BQ24400DG4 BQ24400DG4
BQ24400DR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM BQ24400DR BQ24400DR
BQ24400DRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM BQ24400DRG4 BQ24400DRG4
BQ24400PW Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR BQ24400PW BQ24400PW
BQ24400PWG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR BQ24400PWG4 BQ24400PWG4
BQ24400PWR Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR BQ24400PWR BQ24400PWR
BQ24400PWRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR BQ24400PWRG4 BQ24400PWRG4
BQ24400 应用技术支持与电子电路设计开发资源下载
  1. BQ24400 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)
BQ24400 相关工具
名称 型号 工具/软件类型
电池充电器的快速搜索选择工具 BATTERY_CHARGERS_SELECTION_TOOL 免费评估工具
BQ24400 评估模块 BQ24400EVM 开发电路板/EVM