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RT9750是一款负载能力为6A的智能负载开关式电池充电IC,其主体是一个由电荷泵电路提供控制电源、4个定电流/定电压调节回路控制、具有5种硬件保护措施的内部负载开关。其中还集成了一个8通道12位的模拟-数字转换器,可对电流、电压进行精确的测量,其转换结果可通过I2C串行接口进行上报以反馈电池充电参数。另外,它还提供了3种软件保护措施。
具有充电泵控制的内部负载开关►背对背配置的双N-MOSFET►内部电荷泵控制
4路CC / CV调节►输入电流调节 (ICR)►输出电压调节 (OVR)►电池电压调节 (BVR)►电池电流调节 (BCR)
5种硬件保护►VBUS过压保护 (VBUS_OVP)►压差过大保护 (VDR_OVP)►反向过流保护 (RE_OCP)►接面过热保护 (TJ_OTP)►输入过流保护 (IOC_OCP)
8通道12位ADC►12位分辨率的高精准度►8通道电压/电流测量►高转换速率,每通道数据均8/16次平均后出结果
3种软件保护►压差过大保护报警 (VDR_ALM)►VBUS温度过高保护 (TBUS_OTP) ►电池过热保护 (TBAT_OTP)
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