BQ24120 具有增强的 EMI 性能的同步开关模式锂离子充电器,1 节电池

BQ24120 描述

The bqSWITCHER™ series are highly integrated Li-ion and Li-polymer switch-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status, and charge termination, in a small, thermally enhanced QFN package. The bqSWITCHER charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on user- selectable minimum current level. A programmable charge timer provides a safety backup for charge termination. The bqSWITCHER automatically restarts the charge cycle if the battery voltage falls below an internal threshold

BQ24120 BQ24123 BQ24125
# Series Cells 1   1, 2   1, 2, 3  
Charge Current(Max)(A) 2   2   2  
Charge Status Outputs 2   2   2  
Control Topology Switchmode   Switchmode   Switchmode  
Switching Frequency(kHz) 1100   1100   1100  
Primary Charge Termination Method Minimum Current   Minimum Current   Minimum Current  
Pin/Package 20QFN   20QFN   20QFN  
Vin(Max)(V) 20   20   20
BQ24120 特性
BQ24120 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
BQ24120RHLR ACTIVE -40 to 125 3.50 | 1ku QFN (RHL) | 20 3000 | LARGE T&R  
BQ24120RHLRG4 ACTIVE -40 to 125 3.50 | 1ku QFN (RHL) | 20 3000 | LARGE T&R  
BQ24120RHLT ACTIVE -40 to 125 4.05 | 1ku QFN (RHL) | 20 250 | SMALL T&R  
BQ24120RHLTG4 ACTIVE -40 to 125 4.05 | 1ku QFN (RHL) | 20 250 | SMALL T&R  
BQ24120 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
BQ24120RHLR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR BQ24120RHLR BQ24120RHLR
BQ24120RHLRG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR BQ24120RHLRG4 BQ24120RHLRG4
BQ24120RHLT Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR BQ24120RHLT BQ24120RHLT
BQ24120RHLTG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR BQ24120RHLTG4 BQ24120RHLTG4
BQ24120 应用技术支持与电子电路设计开发资源下载
  1. BQ24120 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)
BQ24120 相关工具
名称 型号 公司 工具/软件类型
BQ24120 评估模块 BQ24120EVM Texas Instruments 开发电路板/EVM
BQ24120 评估模块 BQ24120EVM-001 Texas Instruments 开发电路板/EVM
BQ24120 评估模块 BQ24120EVM-002 Texas Instruments 开发电路板/EVM
BQ24120 评估模块 BQ24120EVM-003 Texas Instruments 开发电路板/EVM
BQ24120 评估模块 BQ24120EVM-004 Texas Instruments 开发电路板/EVM
电池充电器的快速搜索选择工具 BATTERY_CHARGERS_SELECTION_TOOL Texas Instruments 免费评估工具