Hello all,
我现在不用带协议的快充,我们把D+/D-悬空,然后电流有2A,输入是12V,ILIM电流该怎么计算呢 ?
Hollis Liu:
如果USB检测adapter不成功的话,初始限流根据ILIM电阻计算。
ILIM sets the input current limit. A resistor is connected from ILIM pin to ground to set the input current
limit as IINDPM = KILIM/RILIM. The acceptable range for ILIM current is 500 mA – 3200 mA.
The resistor based input current limit is effective only when the input adapter is detected as unknown.
Otherwise, the input current limit is determined by D+/D– detection outcome.
Wade ZED:
回复 Hollis Liu:
Hello Hollis, 我在手册上查到的只有最大1.8A的电阻配置,没有看到3200mA的。
Johnsin Tao:
回复 Wade ZED:
Hi调整RILIM看看