BQ24157S Datasheet, PDF (35/45 Pages) Texas Instruments – Full USB Compliance and USB-OTG Support

Not Recommended for New Designs
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bq24157S
SLUSB76B – FEBRUARY 2013 – REVISED MAY 2015
System Load After Sensing Resistor (continued)
depending on the current left to charge the battery pack. Under extreme conditions, the system current is
close to the short circuit current levels and the battery may not reach the fast-charge region in a timely
manner. As a result, the safety timers flag the battery pack as defective, terminating the charging process.
Because the safety timer cannot be disabled, the inserted battery pack must not be depleted to make the
application possible.
6. If the battery pack voltage is too low, highly depleted, totally dead or even shorted, the system voltage is
clamped by the battery and it cannot operate even if the input power is on.
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