锂电池充电芯片

锂电池充电芯片

PST4056H 是一款输入耐压高达 30V，具有电源 OVP 功能的 1A 单节锂离子电池线性充电器，其采用了恒定电流/恒定电压的充电模式。PST4056H 的 CE、TEMP、CHRG、STDBY 端口的耐压最高也可达到30V。PST4056H 采用了内部 PMOSFET架构，加防倒充电路，不需要外部隔离二极管。热反馈可对充电电流进行自适应调节，以便在大功率操作或高环境温度条件下对芯片充电电流加以限制。充满截止电压可分为两档：4.2 V，4.35V。而充电电流可通过一个电阻器进行外部设置。当充电电流在达到最终浮充电压之后降至设定值 1/10 时PST4056H 将自动终止充电循环。当输入电 • 输入电源端口最高耐压可达30V\n• 输入电源电压6.9V时芯片OVP\n• 高达1000mA的可编程充电电流\n• 恒定电流/恒定电压操作，有温度自适应可实现充电速率最大化\n精度达到±1%的预设充电电压• 自动再充电\n充电状态双输出、无电池和故障状态显示• C/10 充电终止\n• 2.9V涓流充电\n• 软启动限制了浪涌电流\n• 电池温度监测功能\n• 采用 ESOP8/DFN2*2-8、SOT23-5、SOT23-6封装形式;

锂电池充电芯片

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

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