Hi,
I use the BQ24074 for a modem system with a lithium batterie.
The modem in 2G burst with N* 2.3A during 570µs every 4.616 ms. (extract datasheet)
During the charge the tension drop at V BAT level because the I OUT is greater than I lim (set to 1.5A).
But after the busrt, the tension overshot above 4.5V during a short time (see oscyllo print)
The problem in my case is the modem shutdown when VBAT goes higher than 4.5V... So in this mode I have regularly some reboot.
What can I do to avoid and or minimise the overshot ?
Best regards,
Romain.