ACT8810QJ62C-T View Datasheet(PDF) - Active-Semi, Inc
Part Name
Description
MFG CO.
'ACT8810QJ62C-T' PDF : 54 Pages View PDF
ACT8810
Rev 9, 15-Nov-12
ActivePathTM CHARGER
FUNCTIONAL DESCRIPTION CONT’D
Although the CHG_IN pin is designed for maximum
robustness and an absolute maximum voltage
rating of 14V for transients, attention must be given
to bypass techniques to ensure safe operation.
As a result, design of the CHG_IN bypass must
take care to “de-Q” the filter. This can be
accomplished by connecting a 1Ω resistor in series
with a ceramic capacitor (as shown in Figure 17), or
by using a tantalum or electrolytic capacitor to
utilize it’s higher ESR to dampen the ringing. For
additional protection in extreme situations, Zener
diodes with 12V clamp voltages may also be used.
In any case, it is always critical to evaluate voltage
transients at the ACT8810 CHG_IN pin with an
oscilloscope to ensure safe operation.
Figure 17:
CHG_IN Bypass Options for USB or Wall Adaptor Supplies
Innovative PowerTM
ActivePMUTM and ActivePathTM are trademarks of Active-Semi.
I2CTM is a trademark of NXP.
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www.active-semi.com
Copyright © 2012 Active-Semi, Inc.
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