S-8261 Seiko Instruments, S-8261 Datasheet - Page 15

• Manufacturer Part Number: S-8261
• Description: Battery Protection IC for Single-Cell Pack
• Manufacturer: Seiko Instruments

Rev.1.9
Test Circuits
Remark Unless otherwise specified, the output voltage levels “H” and “L” at CO pin (V
(1) Test Condition 1, Test Circuit 1
(2) Test Condition 2, Test Circuit 2
(3) Test Condition 3, Test Circuit 2
(4) Test Condition 4, Test Circuit 2
(5) Test Condition 5, Test Circuit 2
〈〈 Overcharge Detection Voltage, Overcharge Hysteresis Voltage〉〉
〈〈Overdischarge Detection Voltage, Overdischarge Hysteresis Voltage〉〉
〈〈 Overcurrent 1 Detection Voltage, Overcurrent 2 Detection Voltage, Load Short-Circuiting Detection
〈〈 Charger Detection Voltage, Abnormal Charge Current Detection Voltage 〉〉
〈〈 Normal Operation Current Consumption, Power-Down Current Consumption〉〉
Voltage 〉〉
The overcharge detection voltage (V
from “H” to “L” when the voltage V1 is gradually increased from the starting condition of V1 = 3.5 V. The
overcharge hysteresis voltage (V
voltage (V
is gradually decreased.
The overdischarge detection voltage (V
goes from “H” to “L” when the voltage V1 is gradually decreased from the starting condition of V1 = 3.5 V and
V2 = 0 V. The overdischarge hysteresis voltage (V
overdischarge detection voltage (V
“L” when the voltage V1 is gradually increased.
The overcurrent 1 detection voltage (V
for changing V
detection delay time when the voltage V2 is increased rapidly (within 10 µs) from the starting condition V1 =
3.5 V and V2 = 0 V.
The overcurrent 2 detection voltage (V
for changing V
detection delay time when the voltage V2 is increased rapidly (within 10 µs) from the starting condition V1 =
3.5 V and V2 = 0 V.
The load short-circuiting detection voltage (V
delay time for changing V
short-circuiting detection delay time when the voltage V2 is increased rapidly (within 10 µs) from the starting
condition V1 = 3.5 V and V2 = 0 V.
The charger detection voltage (V
“L” to “H” when the voltage V3 is gradually decreased from 0 V after the voltage V1 is gradually increased
from the starting condition of V1 = 1.8 V and V2 = 0 V until the voltage V1 becomes V1 = V
The charger detection voltage can be measured only in the product whose overdischarge hysteresis V
Set V1 = 3.5 V and V2 = 0 V. Decrease V2 from 0 V gradually. The voltage between VM and VSS when
V
detection voltage has the same value as the charger detection voltage (V
The operating current consumption (I
conditions of V1 = 3.5 V and V2 = 0 V (Normal condition).
The power-down current consumption (I
conditions of V1 = V2 = 1.5 V (Overdischarge condition).
_00
CO
judged by the threshold voltage (1.0 V) of the N-channel FET. Judge the CO pin level with respect to
V
goes from “H” to “L” is the abnormal charge current detection voltage. The abnormal charge current
VM
and the DO pin level with respect to V
CU
) and the voltage between VDD and VSS at which V
DO
DO
from “H” to “L” lies between the minimum and the maximum value of the overcurrent 1
from “H” to “L” lies between the minimum and the maximum value of the overcurrent 2
DO
from “H” to “L” lies between the minimum and the maximum value of the load
CHA
HC
BATTERY PROTECTION IC FOR SINGLE-CELL PACK
DL
) is defined as the voltage between VM and VSS at which V
) is then defined as the difference between the overcharge detection
) and the voltage between VDD and VSS at which V
CU
Seiko Instruments Inc.
OPE
IOV1
IOV2
) is defined by the voltage between VDD and VSS at which V
DL
PDN
) is the current that flows through the VDD pin (I
) is defined as the voltage between VM and VSS whose delay time
) is defined as the voltage between VM and VSS whose delay time
) is defined as the voltage between VDD and VSS at which V
) is the current that flows through the VDD pin (I
SHORT
SS
.
) is defined as the voltage between VM and VSS whose
HD
) is then defined as the difference between the
CO
goes from “H” to “L” when the voltage V1
CHA
).
CO
) and DO pin (V
S-8261 Series
DO
DL
DD
DD
+ (V
goes from “H” to
) under the set
) under the set
DO
HD
goes from
/ 2).
CO
HD
DO
goes
) are
≠ 0.
15
DO