• Zamiana układu ładowania BQ24707A

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#1 Zamiana układu ładowania BQ24707A


by pawel80 27 July 2013, 16:48
Witam
Jak w temacie mam pytanie czy taka zamiana BQ24707A na BQ24727 jest możliwa.
Czy ktoś z kolegów już próbował takiej zamiany z powodzeniem?
Pozdrawiam
Paweł

Re: Zamiana układu ładowania BQ24707A


by Google Adsense [BOT] 27 July 2013, 16:48

#2 Re: Zamiana układu ładowania BQ24707A


by rafamsx 3 September 2013, 22:10
Dear pawel80

Personally I've never tried. But I think that if possible.
In a comprehensive document I found on the web, called "BQ24707 HSFET latch-off issue". If you type that into google, you can download it easily (do not remember if they are allowed links to other websites...)
Summarizing a little, the document repairing Cell Li charger circuit, replacing a BQ24727 to BQ24707 also talk about changing the capacitor that goes to pin 17 (BTST) of 0.1u to 0.047u.
The document also includes a fantastic analysis of the operation of this circuit, and screenshots of the signals.

Best regards.

// Deleted the translated stuff, because of many incomprehensible clauses. Vogelek23



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Re: Zamiana układu ładowania BQ24707A


by Google Adsense [BOT] 3 September 2013, 22:10
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