S-8250AAB-I6T1U Datasheet, PDF (4/36 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC

BATTERY PROTECTION IC WITH DISCHARGE CONTROL FUNCTION FOR 1-CELL PACK
S-8250A Series
Rev.1.3_02
Table 3
Delay Time
Combination
Overcharge
Detection
Delay Time
[t_CU]
Overdischarge
Detection
Delay Time
[t_DL]
Discharge
Overcurrent
Detection
Delay Time
[t_DIOV]
Load
Short-circuiting
Detection
Delay Time
[t_SHORT]
Charge
Overcurrent
Detection
Delay Time
[t_CIOV]
Discharge
Inhibition
Delay Time
[t_CTL]
(1)
1.0 s
128 ms
32 ms
280 μs
8 ms
256 ms
(2)
1.0 s
32 ms
16 ms
280 μs
16 ms
256 ms
Remark The delay times can be changed within the range listed in Table 4. For details, please contact our sales office.
Table 4
Delay Time
Symbol
Selection Range
Overcharge detection delay time
Overdischarge detection delay time
Discharge overcurrent detection delay time
Load short-circuiting detection delay time
Charge overcurrent detection delay time
Discharge inhibition delay time
t_CU
t_DL
t_DIOV
t_SHORT
t_CIOV
t_CTL
256 ms
32 ms
8 ms
280 μs^*1
8 ms
64 ms
512 ms
64 ms
16 ms^*1
530 μs
16 ms^*1
128 ms
1.0 s^*1
128 ms^*1
32 ms
−
32 ms
256 ms^*1
*1. This value is the delay time of the standard products.
Remark
Select a value from the left.
Select a value from the left.
Select a value from the left.
Select a value from the left.
Select a value from the left.
Select a value from the left.
Table 5
Function
Combination
Control
Logic^*1
CTL Pin
Internal
Resistance
Connection^*2
Internal
Resistance Value^*3
[R_CTL]
Discharge Inhibition
Status Latch Function ^*4
0 V Battery
Charge
Function^*5
Power-
down
Function^*6
Release
Condition
of Discharge
Overcurrent
Status^*7
(1)
Active "H" Pull-down
5.0 MΩ
Unavailable
Available
Available
Charger
connection
(2)
Active "H" Pull-down
5.0 MΩ
Unavailable
Unavailable Available
Load
disconnection
(3)
Active "H" Pull-down
5.0 MΩ
Unavailable
Unavailable Available
Charger
connection
Caution The combination of CTL pin control logic active "H" and CTL pin internal resistance connection "pull-up"
worsens the accuracy of overcharge detection voltage. Therefore, this combination can not be set up.
*1. CTL pin control logic active "H" / active "L" is selectable.
*2. CTL pin internal resistance connection "pull-up" / "pull-down" is selectable.
*3. CTL pin internal resistance value 1.0 MΩ / 2.0 MΩ / 3.0 MΩ / 4.0 MΩ / 5.0 MΩ is selectable.
*4. Discharge inhibition status latch function "available" / "unavailable" is selectable.
*5. 0 V battery charge function "available" / "unavailable" is selectable.
*6. Power-down function "available" / "unavailable" is selectable.
*7. Release condition of discharge overcurrent status "load disconnection" / "charger connection" is selectable.
Remark Please contact our sales office for the products with function combinations other than those specified above.
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