s-8204a Seiko Instruments Inc., s-8204a Datasheet - Page 10

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s-8204a

Manufacturer Part Number
s-8204a
Description
Battery Protection Ic For 3-series Or 4-series Cell Pack
Manufacturer
Seiko Instruments Inc.
Datasheet

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10
BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204A Series
4.
5.
According to user’s selection of the function to charge 0 V battery, either function of Charger voltage for
start charging 0 V battery or Battery voltage for inhibit charging 0 V battery is applied to each product.
Set V
status is referred to as initial state.)
3. 5 CCT pin Detection Voltage (V
3. 6 CDT pin Detection Voltage (V
3. 7 CIT pin Detection Voltage (V
3. 8 Short circuit Detection Voltage Delay Time (t
4. 1 Charger Voltage for Start Charging 0 V Battery (V
4. 2 Battery Voltage for Inhibit Charging 0 V Battery (V
5. 1 Resistance between VMP and VDD (R
Charger Voltage for Start Charging 0 V Battery, Battery Voltage for Inhibit Charging 0 V Battery
(Test circuit 4)
Resistance between VMP and VDD, Resistance between VMP and VSS, VC1 Pin Current, VC2 Pin
Current, VC3 Pin Current, VC4 Pin Current, CTLC Pin Current “H”, CTLC Pin Current “L”, CTLD
Pin Current “H”, CTLD Pin Current “L”, SEL Pin Current “H”, SEL Pin Current “L”, COP Pin
Leakage Current, COP Pin Sink Current, DOP Pin Source Current, DOP Pin Sink Current (Test
circuit 5)
The CCT pin detection voltage (V
to “H” (voltage V
4.7 V from the initial state.
The CDT pin detection voltage (V
to “H” (voltage V
1.5 V from the initial state.
The CIT pin detection voltage (V
“H” (voltage V
V
Short circuit detection voltage delay time (t
from “L” to “H” by changing the VINI pin’s voltage instantaneously from the initial state to V
0.05 V.
In this Charger voltage for start charging 0V battery, when V1 = V2 = V3 = V4 = 0 V, V
max., the COP pin’s voltage is V
In this Battery voltage for inhibit charging 0 V battery, when V1 = V2 = V3 = V4 = V
V, the COP pin’s voltage is V
The value of resistance between VMP and VDD (R
VMP pin’s current (I
DIOV1
charging 0V battery)
VMP
battery)
= V
max. + 0.05 V from the initial state.
SEL
= V
DS
DS
DS
× 0.9 V or more) after increasing the CIT pin’s voltage gradually, after setting V
DD
, V
× 0.9 V or more) after increasing the CCT pin’s voltage gradually, after setting V1 =
× 0.9 V or more) after increasing the CDT pin’s voltage gradually, after setting V1 =
VMD
VINI
) when V
= V
CTLC
VMP
CIT
VINI
CIT
0CHA
−1 V or more.
CCT
CDT
= V
CCT
CDT
)
) is the voltage at the CIT pin when the DOP pin’s voltage is set to
Seiko Instruments Inc.
= 1.5 V and V
)
)
) is the voltage at the CCT pin when the COP pin’s voltage is set
) is the voltage at the CDT pin when the DOP pin’s voltage is set
CTLD
max. −1 V or less.
= V
VMD
SHORT
SS
)
, V1 = V2 = V3 = V4 = 3.5 V, set other pins open. (This
) is a period in which the VINI pin’s voltage changes
VMP
SHORT
VMD
= V
) can be defined by R
0CHA
)
0INH
SS
) (Product with function to charge 0V
) (Product with function to inhibit
after the initial status.
VMD
= V
0INH
DS
/I
VMD
min., V
Rev.1.3
by using the
SHORT
VMP
VMP
= V
VINI
max.+
_00
= 22
=
0CHA

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