Datasheet

Overvoltage
DetectComparator
CellVoltage
V
OV
– VD
OVH
bq77PL900
Battery
On Off
Pack+
Pack
Pack–
Charger
S0348-01
Bat
bq77PL900
www.ti.com ...................................................................................................................................................... SLUS844B – JUNE 2008 – REVISED JANUARY 2009
Recovery in Stand-Alone Mode
The recovery condition occurs when all cell voltages become lower than (V
OV
– Δ V
OVH
).
Figure 10 illustrates the circuit schematic in overvoltage protection mode in stand-alone mode. Figure 11
illustrates the timing of this protection mode.
Figure 10. Cell Overvoltage Protection Mode in Stand-Alone Mode
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