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BQ2057T 具有 AutoCompTM 的锂离子低压降线性 (8.2V) 充电管理 IC,用于 2 节应用领域

BQ2057T 描述

The BENCHMARQ bq2057 series advanced Lithium-Ion (Li-Ion) and Lithium-Polymer (Li-Pol) linear charge-management ICs are designed for cost-sensitive and compact portable electronics. They combine high-accuracy current and voltage regulation, battery conditioning, temperature monitoring, charge termination, charge-status indication, and AutoComp charge-rate compensation in a single 8-pin IC. MSOP, TSSOP, and SOIC package options are offered to fit a wide range of end applications.

The bq2057 continuously measures battery temperature using an external thermistor. For safety, the bq2057 inhibits charge until the battery temperature is within user-defined thresholds. The bq2057 then charges the battery in three phases: conditioning, constant current, and constant voltage

BQ2057 BQ2057C BQ2057T BQ2057W
# Series Cells 1 1 2 2
Charge Current(Max)(A) >2 >2 >2 >2
Charge Status Outputs 1 1 1 1
Control Topology Linear Linear Linear Linear
Primary Charge Termination Method Minimum Current Minimum Current Minimum Current Minimum Current
Pin/Package 8MSOP, 8SOIC, 8TSSOP 8MSOP, 8SOIC, 8TSSOP 8SOIC, 8TSSOP 8SOIC, 8TSSOP
Vin(Max)(V) 18 18 18 18
Battery Charge Voltage(V) 4.1 4.2 8.2 8.4
BQ2057T 特性
BQ2057T 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
BQ2057TSN ACTIVE -20 to 70 1.00 | 1ku SOIC (D) | 8 75 | TUBE  
BQ2057TSNG4 ACTIVE -20 to 70 1.00 | 1ku SOIC (D) | 8 75 | TUBE  
BQ2057TSNTR ACTIVE -20 to 70 0.80 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
BQ2057TSNTRG4 ACTIVE -20 to 70 0.80 | 1ku SOIC (D) | 8 2500 | LARGE T&R  
BQ2057TTS ACTIVE -20 to 70 1.00 | 1ku TSSOP (PW) | 8 150 | TUBE  
BQ2057TTSG4 ACTIVE -20 to 70 1.00 | 1ku TSSOP (PW) | 8 150 | TUBE  
BQ2057TTSTR ACTIVE -20 to 70 0.80 | 1ku TSSOP (PW) | 8 2000 | LARGE T&R  
BQ2057TTSTRG4 ACTIVE -20 to 70 0.80 | 1ku TSSOP (PW) | 8 2000 | LARGE T&R  
BQ2057T 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
BQ2057TSN Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM BQ2057TSN BQ2057TSN
BQ2057TSNG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM BQ2057TSNG4 BQ2057TSNG4
BQ2057TSNTR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM BQ2057TSNTR BQ2057TSNTR
BQ2057TSNTRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM BQ2057TSNTRG4 BQ2057TSNTRG4
BQ2057TTS Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR BQ2057TTS BQ2057TTS
BQ2057TTSG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR BQ2057TTSG4 BQ2057TTSG4
BQ2057TTSTR Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR BQ2057TTSTR BQ2057TTSTR
BQ2057TTSTRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR BQ2057TTSTRG4 BQ2057TTSTRG4
BQ2057T 应用技术支持与电子电路设计开发资源下载
  1. BQ2057T 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)
BQ2057T 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