The LTC( )4062 is a full-featured, flexible, standalone linear charger for single-cell Lithium-Ion batteries. It is capable of operating within USB power specifications.
Both programmable time and programmable current based termination schemes are available. Furthermore, the CHRG open-drain status pin can be programmed to indicate the battery charge state according to the needs of the application. A precise low power comparator is available even with no power applied as long as battery voltage is higher than 2.5V. Additional safety features designed to maximize battery lifetime and reliability include the SmartStart charging algorithm.
No external sense resistor or external blocking diode is required for charging due to the internal MOSFET architecture. Internal thermal feedback regulates the charge current to maintain a constant die temperature during high power operation or high ambient temperature conditions. The charge current is programmed with an external resistor. With power applied, the LTC4062 can be put into shutdown mode to reduce the supply current to 20µA and the battery drain current to less than 5µA. Without power applied, the internal low power comparator can work sinking only 10µA from the battery.
Other features include smart recharge, USB C/5 current programming input and undervoltage lockout.
*Protected by U.S. Patents, including 6522118.
【用 途】 线性锂离子电池充电器【性能 参数】 采用10管脚小尺寸DFN封装(3mm×3mm),高度0.75mm;工作温度范围为0℃~+85℃。 特点:可以用插头式(AC/DC适配器)或USB端口供电;最大充电电流可达1A;预设浮充电压为4.2V±0.35%;内有用
凌特公司(Linear Technology)推出集成了微功率比较器的紧凑型独立线性单节锂离子电池充电器 LTC4062。在安全性方面,LTC4062 具有可调节的充电终止计时器和防止电池过冲电的精确浮动电压。为消除过热风险的同时以最高速度充电,获得专利的热调节电路可保持 LTC4062 的结温处于安
凌特公司(LinearTechnology)推出集成了微功率比较器的紧凑型独立线性单节锂离子电池充电器LTC4062。在安全性方面,LTC4062具有可调节的充电终止计时器和防止电池过冲电的精确浮动电压。为消除过热风险的同时以最高速度充电,获得专利的热调节电路可保持LTC4062的结温处于安全水平。
方佩敏近年来,手机、数码相机、MP3等便携式产品向体积小、厚度薄、重量轻方向发展,新产品推陈出新,产量也猛增。这些新产品中无不采用锂离子(或聚合物)电池,因为它能满足小、薄、轻的要求,并且容量大,能延长两次充电的时间间隔。与此同时,各厂商也开发出各种新型充电器,与产品进行配套销售。为争夺充电器市场的份额,各导体厂商开发许多性能优良、设计灵活、应用方便的充电器芯片,应用到各种新型充电器当中。凌特公司推出
近年来,手机、数码相机、MP3等便携式产品向体积小、厚度薄、重量轻方向发展,新产品推陈出新,产量也猛增。这些新产品中无不采用锂离子(或聚合物)电池,因为它能满足小、薄、轻的要求,并且容量大,能延长两次充电的时间间隔。与此同时,各厂商也开发出各种新型充电器,与产品进行配套销售。为争夺充电器市场的份额,各导体厂商开发许多性能优良、设计灵活、应用方便的充电器芯片,应用到各种新型充电器当中。凌特公司推出的
近年来,手机、数码相机、MP3等便携式产品向体积小、厚度薄、重量轻方向发展,新产品推陈出新,产量也猛增。这些新产品中无不采用锂离子(或聚合物)电池,因为它能满足小、薄、轻的要求,并且容量大,能延长两次充电的时间间隔。与此同时,各厂商也开发出各种新型充电器,与产品进行配套销售。为争夺充电器市场的份额,各导体厂商开发许多性能优良、设计灵活、应用方便的充电器芯片,应用到各种新型充电器当中。凌特公司推出的