1.测试条件:19V/10A的稳压电源作为输入,BQ24650设置预充电电流为1A,恒流充电电流为10A,给3串25并的18650充电(880Wh容量)。充电电路按照DEMO电路设计。
2.问题:当电池放电到8.5V,然后接入BQ24650给电池充电;充电30分钟后,充电状态指示灯熄灭,充电终止。请问如何才能使其继续充电?
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8.3.4 Battery Precharge
On power-up, if the battery voltage is below the VLOWV threshold, the BQ24650 applies the precharge current to
the battery. This feature is intended to revive deeply discharged cells. If the VLOWV threshold is not reached within
30 minutes of initiating precharge, the charger turns off and a FAULT is indicated on the status pins.
datasheet的的这个部分也明确指出来了,在30分钟内没有充电到高于VLOWV的电压值,充电器就会关闭充电。 这个功能是否可以关闭掉呢?
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