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RT9730是设计用于替代充电系统中的静态元件以实现保护功能的 IC ,可确保低压系统免受高达 28V 的电压侵害。它对输入电压进行监控以确保所有元件都工作在正常的参数范围内,它也对自身温度进行监控以确保在自身温度超过 140°C 时关断 MOSFET。当输入电压超过默认的阈值时,IC 将在 1μs 内断开 MOSFET 以移除电源,确保不会发生损害事件。用户可以通过 CHRIN 端子对输入电压状况进行监控,该端子的驱动能力达 50mA 。假如工作环境的所有参数都在正常范围内,外部充电器可通过 GATDRV 端子对 P-MOSFET 的栅极进行控制。RT9730 以 WDFN-8L 2x2 的小型封装形式供货,可满足拥有小型 PCB 空间和低总体拥有成本的全面要求。
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