s-8211caj-m5t1g Seiko Instruments Inc., s-8211caj-m5t1g Datasheet - Page 22

• Manufacturer Part Number: s-8211caj-m5t1g
• Description: Battery Protection Ic For 1-cell Pack
• Manufacturer: Seiko Instruments Inc.

22
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8211C Series
8. Delay Circuit
The detection delay times are determined by dividing a clock of approximately 3.5 kHz by the counter.
Remark 1. The discharge overcurrent detection delay time (t
2. When any overcurrent is detected and the overcurrent continues for longer than the overdischarge
detection delay time (t
the point where the battery voltage falls below overdischarge detection voltage (V
(t
circuiting detection voltage (V
after the detection of discharge overcurrent detection voltage (V
control FET off within t
When the battery voltage falls below overdischarge detection voltage (V
S-8211C Series turns the discharging control FET off via overcurrent detection. In this case, if the
recovery of the battery voltage is so slow that the battery voltage after the overdischarge detection delay
time is still lower than the overdischarge detection voltage, S-8211C Series shifts to the power-down
status.
SHORT
DO Pin
VM Pin
) start when the discharge overcurrent detection voltage (V
V
Load short-circuiting detection delay time (t
V
V
V
V
V
SHORT
DD
SS
DD
DIOV
SS
DL
SHORT
) without the load being released, the status changes to the power-down status at
from the time of detecting V
SHORT
Seiko Instruments Inc.
) is detected over the load short-circuiting detection delay time (t
Figure 10
SHORT
DIOV
) and the load short-circuiting detection delay time
)
SHORT
t
D
.
DIOV
DIOV
0 ≤ t
), the S-8211C turns the discharging
) is detected. When the load short-
D
≤ t
SHORT
DL
) due to overcurrent, the
Time
Time
DL
).
Rev.5.0
SHORT
_00
)