首页 > TI 德州仪器 > 电源管理 > 电池管理

UCC3956 具有差动电流感应的锂离子开关模式充电管理 IC

UCC3956
# Series Cells Multiple
Charge Current(Max)(A) >2
Charge Status Outputs 2
Control Topology Switchmode
Switching Frequency(kHz) 110
Primary Charge Termination Method Minimum Current
Pin/Package 20PDIP, 20SOIC
Vin(Max)(V) 20
UCC3956 描述

The UCC3956 family of switch-mode lithium-ion battery-charger controllers accurately control lithium-ion battery charging with a highly-efficient average-current-control loop. This chip is designed to work as a stand-alone charger controller for a single-cell or multiple-cell battery pack. This chip combines charge-state logic and average-current PWM control circuitry with a 14-bit counter to program the overcharge time. The charge-state logic indicates current-or voltage-control depending on the charge state. The chip includes undervoltage lockout (UVLO) circuitry to ensure sufficient supply voltage is present before output switching starts. Additional circuit blocks include a differential-current-sense amplifier, a 1% voltage reference, voltage- and current-error amplifiers, PWM latch, charge-state decode bits, and a 500-mA output driver.

UCC3956 特性
UCC3956 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
UCC3956DW ACTIVE -20 to 70 2.55 | 1ku SOIC (DW) | 20 25 | TUBE  
UCC3956DWG4 ACTIVE -20 to 70 2.55 | 1ku SOIC (DW) | 20 25 | TUBE  
UCC3956N ACTIVE -20 to 70 2.55 | 1ku PDIP (N) | 20 20 | TUBE  
UCC3956NG4 ACTIVE -20 to 70 2.55 | 1ku PDIP (N) | 20 20 | TUBE  
UCC3956 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
UCC3956DW Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR UCC3956DW UCC3956DW
UCC3956DWG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR UCC3956DWG4 UCC3956DWG4
UCC3956N Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg Type UCC3956N UCC3956N
UCC3956NG4 Green (RoHS & no Sb/Br) CU NIPDAU N/A for Pkg Type UCC3956NG4 UCC3956NG4
UCC3956 应用技术支持与电子电路设计开发资源下载
  1. UCC3956 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)
UCC3956 相关工具
名称 型号 工具/软件类型
EV2200 PC 接口板 EV2200 开发电路板/EVM
UCC3956 评估模块 UCC3956EVM 开发电路板/EVM
温度传感设计软件 TEMPSENSE-SW 分析软件