MB3836 Datasheet, PDF (16/28 Pages) Fujitsu Component Limited. – Li-Ion Battery Protection IC

MB3836
(3) When the OUTON terminal changes "H"→"L"→"H" after detection of an over-charge
Cell voltage
Cell voltage
input current
VTH (4.325 V)
VH (0.2 V)
(4.125 V)
(45 µA)
(0 µA)
COVT terminal
(6.26 V)
COUT terminal
OUTON terminal
DOUT terminal
OCV terminal
(0 V)
VS terminal
(0 V)
tD (23 ms)
Figure 3
When the OUTON terminal (pin 20) changes from “H” level to “L” level after detection of an over-charge, the
DOUT terminal (pin 3) goes “H” level to turn off the Pch MOS FET for external discharge control, thereby setting
the OCV terminal (pin 1) to “L” level.
When the OUTON terminal (pin 20) changes from “H” level to “L” level after all the cell voltages in the over-
charge detected state become the over-charge release voltage (4.125 V Typ) or less, the COUT terminal (pin
2) goes “L” level to turn on the Pch MOS FET for external charge control. When the OCV terminal (pin 1) changes
from “L” level to “H” level at this time, the DOUT terminal (pin 3) goes “L” level to turn on the Pch MOS FET for
external discharge control.
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