Although I checked bq2004E/H datasheet, I have unknown point.
Please let me know about 4-points below.
----------------------------------------------
① Please let me know about DCMD （Discharge Before Charge） function and necessity.
I looked datasheet and State diagram (page-8) , but didn’t fully understand.
② If there reference circuit of battery removal?
I think that bq2004E judges battery removal depend on Vcell, Vmcv, and tmcv.
But I didn’t understand mechanism of internal circuit on this function.
③ On State diagram (Datasheet P8), “Pulse Trickle Charge” repose on many plase.
Is trickle charge have much condition?
Point of adjacent trickle charge, I didn’t understand priority of arrow.
④ When Vbatt voltage fall less than Vedv (by Aging, Abnormal battery, etc), can bq2004E do following function?
・Fast charge again
・Alert output when Vbatt<Vedv condition
----------------------------------------------
Best regards,
Satoshi