500mA 线性锂离子电池充电器

TP4062 是一款完整单节锂离子电池充电器， 带电池正负极反接保护， 具有更大500mA 的充电电流，更稳定的电流一致性。其采用恒定电流/恒定电压线性控制，SOT23-6 封装与较少的外部元件数目使得TP4062 成为便携式应用的理想选择。\n\nTP4062 采用了内部PMOSFET 架构，加上防倒充电路，所以不需要外部检测电阻器和隔离二极管。热反馈可对充电电流进行自动调节，以便在大功率操作或高环境温度条件下对芯片温度加以限制。充满电压固定于4.2V，而充电电流可通过一个电阻器进行外部设置。当充电进入恒压阶段时，充电电流会自动减小。当充电电流降至设定值的1/10时，指示灯转灯，但充电电流不 ·锂电池正负极反接保护；\r\n·高达 500mA 的可编程充电电流；\r\n·充满转灯后充电电流逐渐减小并保持电池4.2V电压；\r\n·无需 MOSFET、检测电阻器或隔离二极管；\r\n·用于单节锂离子电池\r\n·恒定电流/恒定电压操作，并具有可在无过热危险的情况下实现充电速率最大化的热调 节功能；\r\n·可直接从 USB 端口给单节锂离子电池充电；\r\n·精度达到±1%的 4.2V 预设充电电压；\r\n·最高输入可达 9V；\r\n·2 个充电状态开漏输出引脚；\r\n·待机模式下的供电电流为 50uA；\r\n·2.9V涓流充电器件版本；\r\n·软启动限制了浪涌电流;

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

DUAL J-FET INPUT LOW-POWER OPERATIONAL AMPLIFIER?

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