S-8254AALFT-TB-G Seiko Instruments, S-8254AALFT-TB-G Datasheet - Page 10

• Manufacturer Part Number: S-8254AALFT-TB-G
• Description: IC LI-ION BATT PROTECT 16-TSSOP
• Manufacturer: Seiko Instruments

Specifications of S-8254AALFT-TB-G

• Function: Over/Under Voltage Protection
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 2 V ~ 24 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Output Voltage: 4.3 V
• Operating Supply Voltage: 2 V to 24 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10
BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK
S-8254A Series
3. Overcharge Detection Delay Time, Overdischarge Detection Delay Time, Overcurrent Detection
2.6 CTL Input Voltage “H” (V
2.7 SEL Input Voltage “H” (V
Delay Time 1, Overcurrent Detection Delay Time 2, Overcurrent Detection Delay Time 3
(Test circuit 3)
Confirm that the COP pin and DOP pin are “L” when V
3.5 V (this status is referred to as the initial status).
3.1 Overcharge Detection Delay Time (t
3.2 Overdischarge Detection Delay Time (t
3.3 Overcurrent Detection Delay Time 1 (t
3.4 Overcurrent Detection Delay Time 2 (t
3.5 Overcurrent Detection Delay Time 3 (t
The CTL input voltage “H” (V
are “H” after the CTL voltage has been gradually increased starting at the initial status. The CTL input
voltage “L” (V
CTL voltage has been gradually decreased.
Apply 0 V to V4 in the initial status and confirm that the DOP pin is “H”. The SEL input voltage “L”
(V
been gradually decreased. The SEL input voltage “H” (V
voltage of the DOP pin is “H” after the SEL voltage has been gradually increased.
The overcharge detection delay time (t
from “L” to “H” after the voltage of V1 is instantaneously changed to 4.5 V from the initial status.
The overdischarge detection delay time (t
change from “L” to “H” after the voltage of V1 is instantaneously changed to 1.5 V from the initial
status
Overcurrent detection delay time 1 (t
from “L” to “H” after the voltage of the VINI pin is instantaneously changed to 0.4 V from the initial
status.
Overcurrent detection delay time 2 (t
from “L” to “H” after the voltage of the VINI pin is instantaneously changed to V
the initial status.
Overcurrent detection delay time 3 (t
from “L” to “H” after the voltage of the VMP pin is instantaneously changed to V
the initial status.
SELL
) is the voltage of the SEL pin when the voltage at the DOP pin is “L” after the SEL voltage has
CTLL
) is the voltage of CTL when the voltages at the COP and DOP pins are “L” after the
CTLH
SELH
CTLH
), CTL Input Voltage “L” (V
), SEL Input Voltage “L” (V
) is the voltage of CTL when the voltages at the COP and DOP pins
Seiko Instruments Inc.
IOV1
IOV2
IOV3
CU
CU
) is the time it takes for the voltage of the DOP pin to change
) is the time it takes for the voltage of the DOP pin to change
) is the time it takes for the voltage of the DOP pin to change
) is the time it takes for the voltage of the COP pin to change
)
IOV1
IOV2
IOV3
DL
DL
)
)
)
)
) is the time it takes for the voltage of the DOP pin to
VMP
= V
SELH
CTLL
SELL
DD
) is the voltage of the SEL pin when the
, V
)
)
INI
= V
SS
, and V1 = V2 = V3 = V4 =
IOV2
IOV3
max. + 0.2 V from
min. − 0.2 V from
Rev.5.0
_01