s-8244aadph-cedtfg Seiko Instruments Inc., s-8244aadph-cedtfg Datasheet - Page 10

• Manufacturer Part Number: s-8244aadph-cedtfg
• Description: Battery Protection Ic For 1-serial To 4-serial-cell Pack Secondary Protection
• Manufacturer: Seiko Instruments Inc.

10
BATTERY PROTECTION IC FOR 1-SERIAL TO 4-SERIAL-CELL PACK (SECONDARY PROTECTION)
S-8244 Series
(4) Test Condition 4, Test Circuit 1
(5) Test Condition 5, Test Circuit 2
(6) Test Condition 6, Test Circuit 3
Set switches 1 and 2 to OFF for CMOS output product.
Set switch 1 to ON and switch 2 to OFF for Nch open drain product.
Set switch 1 to OFF and switch 2 to ON for Pch open drain product.
• Product with CMOS output active “H”, Nch open drain output active “H”
• Product with CMOS output active “L”, Nch open drain output active “L”, Pch open drain output active “L”
Set switches 1 and 2 to OFF for CMOS output product.
Set switch 1 to ON and switch 2 to OFF for Nch open drain product.
Set switch 1 to OFF and switch 2 to ON for Pch open drain product.
• Product with CMOS output active “H”, Nch open drain output active “H”
• Product with CMOS output active “L”, Nch open drain output active “L”, Pch open drain output active “L”
Measure current consumption (I1) setting V1 = V2 = V3 = V4 = 2.3 V. This I1 is current consumption at power-down
(I
Measure current consumption (I1) setting V1 = V2 = V3 = V4 = 3.5 V. This I1 is current consumption during normal
operation (I
PDN
Rise V1 to 4.7 V momentarily within 10 µ s after setting V1 = V2 = V3 = V4 = 3.5 V. The period from V1 having
reached 4.7 V to CO = “H” is the overcharge detection delay time (t
Rise V1 to 4.7 V momentarily within 10 µ s after setting V1 = V2 = V3 = V4 = 3.5 V. The period from V1 having
reached 4.7 V to CO = “L” is the overcharge detection delay time (t
The overcharge detection voltage 4 (V
V4 gradually, after setting V1 = V2 = V3 = V4 = 3.5 V. After that, gradually decreasing V4’s voltage to set CO = “L”,
and the difference of this V4’s voltage and V
The overcharge detection voltage 4 (V
V4 gradually, after setting V1 = V2 = V3 = V4 = 3.5 V. After that, gradually decreasing V4’s voltage to set CO =
“H”, and the difference of this V4’s voltage and V
).
OPE
), I2 is the VC1 sink current (I
CU4
CU4
Seiko Instruments Inc.
) is a voltage at V4; when the CO pin’s voltage is set to “H” by increasing
) is a voltage at V4; when the CO pin’s voltage is set to “L” by increasing
VC1
CU4
), I3 is the VC2 sink current (I
is the overcharge hysteresis voltage 4 (V
CU4
is the overcharge hysteresis voltage 4 (V
CU
CU
).
).
VC2
), I4 is the VC3 sink current (I
CD4
).
CD4
).
Rev.4.2
VC3
).
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