Hi all,
I'm using LM3658 as my project battery charging solution. I'm using Li-ion Battery with 2050mAh, with embedded protection circuit which i got it from farnell
http://fr.farnell.com/bak/103456a-1s-3m/batterie-lithium-ion-3-7v-2050/dp/2401856
The battery is almost full and I just wanna test the charge complete signal from the IC (stat 2 pin 6). I'm using power supply as the source, 5.03V, the current drew from the power supply is 0.12A. However, it keeps charging for a long time without changing the LED status to green light. The Vbat is 4.258V. I'm surprised that the IC cannot stop charging over 4.2V. What's more, the Top-Off Charging Timer should be terminated within an hour to green light ( stat 2), however, i waited for a long time, over 2 hours, but still this Top-Off Charging Timer didn't turn off. Could you please give me some advice and suggestion.
I followed the EVB circuit, Iset resistor 5Kohm.
Many Thanks!
Winnie