S-8204BAD Datasheet, PDF (9/36 Pages) List of Unclassifed Manufacturers – BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK

Rev.3.6_00
BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
S-8204B Series
„ Test Circuit
This chapter describes how to test the S-8204B Series. In case of selecting to use it for 4-series cell battery, set SEL pin
= V_DD. For 3-series cell battery, set SEL pin = V_SS and short between the VC4 pin and the VSS pin.
1. Current consumption during operation and power-down
(Test circuit 1)
1. 1 Current consumption during operation (I_OPE)
The current at the VSS pin when V1 = V2 = V3 = V4 = 3.5 V and V_VMP = V_DD is the current consumption during
operation (I_OPE).
1. 2 Current Consumption during power-down (I_PDN) (with power-down function)
The current at the VSS pin when V1 = V2 = V3 = V4 = 1.5 V and V_VMP = V_SS is the current consumption during
power-down (I_PDN).
1. 3 Current consumption during overdischarge (I_OPED) (without power-down function)
The current at the VSS pin when V1 = V2 = V3 = V4 = 1.5 V and V_VMP = V_SS is the current consumption during
overdischarge (I_OPED).
2. Overcharge detection voltage, overcharge release voltage, overdischarge detection voltage,
overdischarge release voltage, discharge overcurrent detection voltage 1, discharge overcurrent
detection voltage 2, load short-circuit detection voltage, CTLC pin input voltage "H", CTLC pin
input voltage "L", CTLD pin input voltage "H", CTLD pin input voltage "L", SEL pin input voltage
"H", SEL pin input voltage "L"
(Test circuit 2)
Confirm both the COP pin and the DOP pin are in "H" (its voltage level is V_DS × 0.9 V or more) after setting V_VMP =
V_SEL = V_CTLC = V_CTLD = V_DD, V_VINI = V_SS, CCT pin = Open, CDT pin = Open, CIT pin = Open, V1 = V2 = V3 = V4 =
3.5 V. (This status is referred to as initial status.)
2. 1 Overcharge detection voltage (V_CU1), overcharge release voltage (V_CL1)
The overcharge detection voltage (V_CU1) is a voltage at V1; when the COP pin's voltage is set to "L" (its voltage
level is V_DD × 0.1 V or less) after increasing a voltage at V1 gradually from the initial status. After that, decreasing
a voltage at V1 gradually, a voltage at V1 when the COP pin's voltage is set to "H"; is the overcharge release
voltage (V_CL1).
2. 2 Overdischarge detection voltage (V_DL1), overdischarge release voltage (V_DU1)
The overdischarge detection voltage (V_DL1) is a voltage at V1; when the DOP pin's voltage is set to "L" after
decreasing a voltage at V1 gradually from the initial status. After that, increasing a voltage at V1 gradually, a
voltage at V1 when the DOP pin’s voltage is set to "H"; is the overdischarge release voltage (V_DU1).
By changing the voltage at Vn (n = 2 to 4), users can define the overcharge detection voltage (V_CUn), the
overcharge release voltage (V_CLn), the overdischarge detection voltage (V_DLn), the overdischarge release voltage
(V_DUn) as well when n = 1.
2. 3 Discharge overcurrent detection voltage 1 (V_DIOV1)
The discharge overcurrent detection voltage 1 (V_DIOV1) is the VINI pin's voltage; when the DOP pin's voltage is set
to "L" after increasing the VINI pin’s voltage gradually from the initial status.
2. 4 Discharge overcurrent detection voltage 2 (V_DIOV2)
The discharge overcurrent detection voltage 2 (V_DIOV2) is a voltage at the VINI pin; when a flowing current from
the CIT pin reaches 500 μA or more after increasing the VINI pin's voltage gradually from the initial status.
2. 5 Load short-circuit detection voltage (V_SHORT)
The load short-circuit detection voltage (V_SHORT) is the VINI pin's voltage; when the DOP pin's voltage is set to "L"
after increasing the VINI pin's voltage gradually after setting the CIT pin's voltage V_SS level from the initial status.
Seiko Instruments Inc.
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