S-8204AAB-TCT1Y Datasheet, PDF(9/34 Page) Seiko Instruments Inc

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S-8204AAB-TCT1Y Datasheet, PDF (9/34 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC

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Rev.3.5_00

BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK

S-8204A Series

2. 6 Charge overcurrent detection voltage (VCIOV)

The charge overcurrent detection voltage (VCIOV) is the VINI pin's voltage; when the COP pin's voltage

is set to "H" after decreasing the VINI pin's voltage gradually from the initial status.

2. 7 CTLC pin input voltage "H" (VCTLCH), CTLC pin input voltage "L" (VCTLCL)

The CTLC pin input voltage "H" (VCTLCH) is the CTLC pin's voltage; when the COP pin's voltage is set

to "H" after increasing the CTLC pin's voltage gradually from the initial status. After that, decreasing

the CTLC pin's voltage gradually, the CTLC pin's voltage when the COP pin's voltage is set to "L"; is

the CTLC pin input voltage "L" (VCTLCL).

2. 8 CTLD pin input voltage "H" (VCTLDH), CTLD pin input voltage "L" (VCTLDL)

The CTLD pin input voltage "H" (VCTLDH) is the CTLD pin's voltage; when the DOP pin's voltage is set

to "H" after increasing the CTLD pin's voltage gradually from the initial status. After that, decreasing

the CTLD pin's voltage gradually, the CTLD pin's voltage when the DOP pin's voltage is set to "L"; is

the CTLD pin input voltage "L" (VCTLDL).

2. 9 SEL pin input voltage "H" (VSELH), SEL pin input voltage "L" (VSELL)

Start from the initial status, set V4 = 0 V. Confirm the DOP pin is in "H". After that, decreasing the SEL

pin's voltage gradually, the SEL pin's voltage when the DOP pin's voltage is set to "L"; is the SEL pin

input voltage "L" (VSELL). After that, increasing the SEL pin's voltage gradually, the SEL pin's voltage

when the DOP pin's voltage is set to "H"; is the SEL pin input voltage "H" (VSELH).

3. CCT pin internal resistance, CDT pin internal resistance, CIT pin internal resistance 1, CIT pin

internal resistance 2, CCT pin detection voltage, CDT pin detection voltage, CIT pin detection

voltage, short circuit detection voltage delay time

(Test circuit 3)

Confirm both COP pin and DOP pin are in "L" after setting VVMP = VSEL = VDD, VVINI = VCTLC = VCTLD =

CCT = CDT = CIT = VSS, V1 = V2 = V3 = V4 = 3.5 V. (This status is referred to as initial status.)

3. 1 CCT pin internal resistance (RINC)

The CCT pin internal resistance (RINC) is RINC = VDS / ICCT, ICCT is the current which flows from the CCT

pin when setting V1 = 4.7 V from the initial status.

3. 2 CDT pin internal resistance (RIND)

The CDT pin internal resistance (RIND) is RIND = VDS / ICDT, ICDT is the current which flows from the CDT

pin when setting V1 = 1.5 V from the initial status.

3. 3 CIT pin internal resistance 1 (RINI1)

The CIT pin internal resistance 1 (RINI1) is RINI1 = VDS / ICIT1, ICIT1 is the current which flows from the CIT

pin when setting VVINI = VDIOV1 max. + 0.05 V from the initial status.

3. 4 CIT pin internal resistance 2 (RINI2)

The CIT pin internal resistance 2 (RINI2) is RINI2 = VDS / ICIT2, ICIT2 is the current which flows from the CIT

pin when setting VVINI = VDIOV2 max. + 0.05 V from the initial status.

3. 5 CCT pin detection voltage (VCCT)

The CCT pin detection voltage (VCCT) is the voltage at the CCT pin when the COP pin's voltage is set

to "H" (voltage VDS Ã 0.9 V or more) after increasing the CCT pin's voltage gradually, after setting V1 =

4.7 V from the initial status.

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