UC2909-EP 具有差动电流感应的增强型产品开关模式铅酸电池充电器

UC2909-EP 描述

The UC2909 controls lead acid battery charging with a highly efficient average current mode control loop. This chip combines charge state logic with average current PWM control circuitry. Charge state logic commands current or voltage control depending on the charge state. The chip includes undervoltage lockout circuitry to insure sufficient supply voltage is present before output switching starts. Additional circuit blocks include a differential current sense amplifier, a 1.5% voltage reference, a –3.9-mV/°C thermistor linearization circuit, voltage and current error amplifiers, a PWM oscillator, a PWM comparator, a PWM latch, charge state decode bits, and a 100-mA open collector output driver.

UC2909-EP
Charge Status Outputs 2  
Control Topology Switchmode  
Primary Charge Termination Method Maximum Voltage,Minimum Current  
Pin/Package 20SOIC  
Vin(Max)(V) 40
UC2909-EP 特性
UC2909-EP 芯片订购指南
器件 状态 温度 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
UC2909MDWREP ACTIVE -55 to 125 5.78 | 1ku SOIC (DW) | 20 2000 | LARGE T&R UC2909EP
UC2909-EP 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
UC2909MDWREP Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-250C-1 YEAR UC2909MDWREP UC2909MDWREP
UC2909-EP 应用技术支持与电子电路设计开发资源下载
  1. UC2909-EP 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. 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
  5. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)   (PDF  2206 KB)
  6. PowerPAD™ Made Easy (PDF 57 KB)
  7. 标准线性产品交叉参考 (Rev. D)   (PDF  1058 KB)
  8. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  9. 所选封装材料的热学和电学性质 (PDF 645 KB)
  10. 高速数据转换 (PDF 1967 KB)