S-8261ABSMD-G3ST2G Seiko Instruments, S-8261ABSMD-G3ST2G Datasheet - Page 20

• Manufacturer Part Number: S-8261ABSMD-G3ST2G
• Description: IC LI-ION BATT PROTECT SOT23-6
• Manufacturer: Seiko Instruments

Specifications of S-8261ABSMD-G3ST2G

• Function: Over/Under Voltage Protection
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6
• Output Voltage: 4.28 V
• Operating Supply Voltage: 1.5 V to 28 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

20
LOW DROPOUT CMOS VOLTAGE REGULATOR
S-8261 Series
7. Delay Circuits
The detection delay times are determined by dividing a clock of the approximately 3.5 kHz with the counter.
Remark 1. The detection delay time for overcurrent 2 (t
2. For products with power-down function
overcurrent 1 (V
detected over the detection delay time for each of them (= t
overcurrent 1 (V
When the overcurrent is detected and continues for longer than the overdischarge detection delay time
(t
falls below the overdischarge detection voltage (V
overdischarge detection voltage (V
control FET off by the 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 (t
overdischarge detection voltage (V
For products without power-down function
When the overcurrent is detected and continues for longer than the overdischarge detection delay time
(t
falls below overdischarge detection voltage (V
detection voltage (V
the 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 (t
voltage (V
DL
DL
) without releasing the load, the status changes to the power-down status when the battery voltage
) without released the load, the status changes to the overdischarge status when the battery voltage
DO pin
VM pin
DL
), S-8261 Series shifts to the overdischarge status.
IOV1
IOV1
Overcurrent 2 detection delay time (t
), the S-8261 Series turns the FET off within t
DL
) is detected. When the overcurrent 2 (V
V
V
V
V
V
V
) due to the overcurrent, the S-8261 Series turns the discharging control FET off by
DD
SS
DD
IOV2
IOV1
SS
Seiko Instruments Inc.
DL
DL
), the S-8261 Series shifts to the power-down status.
) due to the overcurrent, the S-8261 Series turns the discharging
DL
IOV2
Figure 5
).When the battery voltage falls below overdischarge
) and load short-circuiting (t
IOV2
DL
DL
).
)
) is still lower than the overdischarge detection
When the battery voltage falls below the
IOV2
IOV2
IOV2
t
D
) or load short-circuiting (V
or t
or t
SHORT
0 ≤ t
SHORT
DL
of each detection.
D
) is still lower than the
≤ t
) after the detection of
SHORT
IOV2
Time
Time
) start when the
Rev.5.0
SHORT
_00
) is