s-8204a Seiko Instruments Inc., s-8204a Datasheet - Page 8

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

8
BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204A Series
In this chapter, describing how to test the S-8204A Series. In case of selecting to use it for 4-series cell
battery, set SEL pin = V
VC4 pin.
1.
2.
Test Circuit
1. 1 Current Consumption during Operation (I
1. 2 Current Consumption at Power-down (I
2. 1 Overcharge Detection Voltage (V
2. 2 Overdischarge Detection Voltage (V
2. 3 Discharge Overcurrent Detection Voltage 1 (V
2. 4 Discharge Overcurrent Detection Voltage 2 (V
Current consumption during operation and power-down (Test circuit 1)
Overcharge Detection Voltage, Overcharge Release Voltage, Overdischarge Detection Voltage,
Overdischarge Release Voltage, Discharge Overcurrent Detection Voltage 1, Discharge
Overcurrent Detection Voltage 2, Short circuit detection voltage, Charge Overcurrent Detection
Voltage, CTLC Input Voltage “H”, CTLC Input Voltage “L”, CTLD Input Voltage “H”, CTLD Input
Voltage “L”, SEL Input Voltage “H”, SEL Input Voltage “L” (Test circuit 2)
The current at the VSS pin when V1 = V2 = V3 = V4 = 3.5 V and V
consumption during operation (I
The current at the VSS pin when V1 = V2 = V3 = V4 = 1.5 V and V
consumption at power-down (I
Confirm both COP and DOP pins are in “L” (its voltage level is V
V
V3 = V4 = 3.5 V. (This status is referred to as initial state.)
The overcharge detection voltage (V
(its voltage level is V
After that, decreasing a voltage at V1 gradually, a voltage at V1 when the COP pin’s voltage is set to
“L”; is the overcharge release voltage (V
The overdischarge detection voltage (V
after decreasing a voltage at V1 gradually from the initial state. After that, increasing a voltage at V1
gradually, a voltage at V1 when the DOP pin’s voltage is set to “L”; is the overdischarge release
voltage (V
By changing the voltage at Vn (n = 2 to 4), users can define the overcharge detection voltage (V
the overcharge release voltage (V
release voltage (V
The discharge overcurrent detection voltage 1 (V
voltage is set to “H” after increasing the VINI pin’s voltage gradually from the initial status.
The discharge overcurrent detection voltage 2 (V
current from the CIT pin reaches 500 µA or more after increasing the VINI pin’s voltage gradually from
the initial status.
SEL
= V
DD
DU1
, V
).
VINI
= V
DD
DUn
level. For 3-series cell battery, set SEL pin = V
CTLC
DS
) as well when n = 1.
× 0.9 V or more) after increasing a voltage at V1 gradually from the initial state.
= V
CTLD
PDN
OPE
= V
).
).
CLn
Seiko Instruments Inc.
SS
CU1
CU1
), the overdischarge detection voltage (V
, CCT pin = Open, CDT pin = Open, CIT pin = Open, V1 = V2 =
DL1
), Overcharge Release Voltage (V
) is a voltage at V1; when the COP pin’s voltage is set to “H”
CL1
DL1
) is a voltage at V1; when the DOP pin’s voltage is set to “H”
).
), Overdischarge Release Voltage (V
PDN
OPE
)
)
DIOV1
DIOV1
DIOV2
DIOV2
) is the VINI pin’s voltage; when the DOP pin’s
)
)
) is a voltage at the VINI pin; when a flowing
DS
SS
× 0.1 V or less) after setting V
level and short between VC3 and
CL1
VMP
VMP
)
DLn
= V
= V
DU1
), the overdischarge
)
DD
SS
is the current
is the current
Rev.1.3
VMP
_00
CUn
),
=