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BQ25060: TS function disconnects IN from OUT?

user4052185
Prodigy 230 points
Part Number: BQ25060
Other Parts Discussed in Thread: BQ24296

Hi,

i need to design a system where normally i have dc power connected to it and only when its removed, i need to use back up battery.

Other limitation comes from temperatures. Battery can be used only until +60 degrees, but the system can be running with dc power until +85 degrees.

Now, when using BQ25060 and setting charging temperature windows from 0 to +45 degrees. If temperature goes outside this window, charging is stopped. Does it mean that IN is disconnected from OUT?

If so, I cannot use this kind of approach? Is there some other way to keep dc power on continuosly when available (-30 to +85degrees) and use back up battery when needed (-10 to 60degrees, charging 0 to 45degrees)

Do I have same problem when using i.e. BQ24296 or do I have more options?

Marko

  • 0
    Prodigy 230 points
    To put the question more simple: If temperature goes outside this window, charging is stopped. Does it mean that IN is disconnected from OUT or BQ25060 controls the external FET by BGATE preventing the current onward battery but letting the supplement mode continue?