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LMH6525: LMH6525电流叠加

Part Number: LMH6525

hi;

你好,我现在想提高输出电流,我想用多个通道叠加起来,我改变IR输入电阻,电流输出大小可以改变,如果IR通道电阻固定后,通过FPGA的IO口输出差分信号(3.3V高电平,低电平0v)控制EN2+,EN2B-时候,这个时候电流没有叠加上来,把EN2+,EN2B-两个引脚断开,电流输出端190mA电流,没有办法断开电流(意思是高速开关开关),请教如何操作,能使电流达到200mA以上而且可以快速关闭,谢谢