Hi
BQ24616規格書內有提到的 Charge Overcurrent Protection 以及 Battery Overvoltage Protection 的部分,
想請教要怎麼測試這兩點
感謝您
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Hi
BQ24616規格書內有提到的 Charge Overcurrent Protection 以及 Battery Overvoltage Protection 的部分,
想請教要怎麼測試這兩點
感謝您
OCP: Look at inductor current, HIDRV, LODRV and when charge current exceeds 160%, there will be cycle by cycle OCP, where HIDRV will turn off.You can also look at SRP-SRN differential voltage instead of current, but the differential voltage range is low.
OVP: Use a bidrectional power supply to simulate battery, and then increase battery above 104% of VFB that corresponds to battery OVP. Monitor VFB, SRN, HIDRV and LODRV to see effect of battery OVP.