双输入 USB/AC 适配器 独立型锂离子电池充电器

LTC®4075/LTC4075X 是能够从交流适配器和 USB 输入对单节锂离子电池进行充电的独立型线性充电器。这些充电器可在输入端上检测电源并自动选择合适的电源来充电。\n 由于采用了内部 MOSFET 架构，因而充电操作无需外部检测电阻器或隔离二极管。内部热反馈电路可调整电池充电电流，以便在大功率工作或高环境温度条件下对芯片温度加以限制。浮动电压被固定于 4.2V，而充电电流可通过一个外部电阻器来设置。当充电电流在达到最终浮动电压之后降至设定终止门限以下时，LTC4075 将终止充电周期。当两个输入端均被加电时，可将 LTC4075/LTC4075X 置于停机模式，从而把 DCIN 电源 ·可从交流适配器和 USB 输入对单节锂离子电池进行充电\n·输入电源自动检测和选择\n·采用交流适配器输入时可编程充电电流高达 950mA\n·无需外部 MOSFET、检测电阻器或隔离二极管\n·热调整功能可在无过热危险的情况下实现充电速率的最大化*\n·准确度达 ±0.6% 的预设充电电压\n·可编程充电电流终止\n·停机模式中的 18µA USB 中止电流\n·独立的“电源接入”状态输出\n·充电状态输出\n·自动再充电\n·可提供无涓流充电模式的器件版本 (LTC4075X)\n·采用耐热增强型、扁平 (高度仅 0.75mm) 10 引脚(3mm×3mm) DFN 封装;

Dual Input USB/AC Adapter Standalone Li-Ion Battery Chargers

文件：188.49 Kbytes Page：16 Pages

Dual Input USB/AC Adapter Standalone Li-Ion Battery Chargers

文件：210.35 Kbytes Page：16 Pages

Dual Input USB/AC Adapter Standalone Li-Ion Battery Chargers

文件：188.49 Kbytes Page：16 Pages

Silicon planar type

Silicon planar type For stabilization of power supply ■ Features • Extremely low noise voltage caused from diode (1/3 to 1/10 of our conventional MAZ4000 series) • Extremely good rising performance (in the low-current range) • Easy-to-identify the zener-voltage rank by the color bands • Easy

Silicon planar type

Silicon planar type For stabilization of power supply ■ Features • High reliability, achieved by the DHD structure • Allowing to insert to a 5 mm pitch hole • Finely divided zener-voltage rank • Sharp rising performance • Wide voltage range: VZ = 2.0 V to 39 V

Silicon planar type

Silicon planar type For stabilization of power supply ■ Features • High reliability, achieved by the DHD structure • Allowing to insert to a 5 mm pitch hole • Finely divided zener-voltage rank • Sharp rising performance • Wide voltage range: VZ = 2.0 V to 39 V

Silicon planar type

Silicon planar type For stabilization of power supply ■ Features • Extremely low noise voltage caused from diode (1/3 to 1/10 of our conventional MAZ4000 series) • Extremely good rising performance (in the low-current range) • Easy-to-identify the zener-voltage rank by the color bands • Easy

Silicon planar type

Silicon planar type For stabilization of power supply ■ Features • Extremely low noise voltage caused from diode (1/3 to 1/10 of our conventional MAZ4000 series) • Extremely good rising performance (in the low-current range) • Easy-to-identify the zener-voltage rank by the color bands • Easy