S-8205BAA-TCT1U Datasheet PDF ( Pinout )

S-8205BAA-TCT1U Datasheet PDF - Seiko

Part Number	*S-8205BAA-TCT1U*
Description	BATTERY PROTECTION IC
Manufacturers	Seiko
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S-8205A/B Series

www.sii-ic.com

BATTERY PROTECTION IC

FOR 4-SERIES OR 5-SERIES CELL PACK

Rev.1.5_01

The S-8205A/B Series includes high-accuracy voltage detection circuits and delay circuits, in single use, makes it possible

for users to monitor the status of 4-series or 5-series cell lithium-ion rechargeable battery.

The S-8205A/B Series is suitable for protecting lithium-ion rechargeable battery pack from overcharge, overdischarge, and

overcurrent.

Features

• High-accuracy voltage detection function for each cell

Overcharge detection voltage n (n = 1 to 5)

3.55 V to 4.40 V*1 (50 mV step)

Overcharge release voltage n (n = 1 to 5)

3.30 V to 4.40 V*2

Overdischarge detection voltage n (n = 1 to 5)

2.0 V to 3.2 V*1 (100 mV step)

Overdischarge release voltage n (n = 1 to 5)

2.0 V to 3.4 V*3

Accuracy ±25 mV

Accuracy ±50 mV

Accuracy ±80 mV

Accuracy ±100 mV

• Discharge overcurrent detection in 2-step

Discharge overcurrent detection voltage

Short circuit detection voltage

0.05 V to 0.30 V*4 (50 mV step)

0.50 V to 1.0 V*4 (100 mV step)

Accuracy ±15 mV

Accuracy ±100 mV

• Charge overcurrent detection

Charge overcurrent detection voltage

−0.30 V to −0.05 V (50 mV step) Accuracy ±30 mV

• Settable by external capacitor; Overcharge detection delay time, Overdischarge detection delay time, Discharge

overcurrent detection delay time, Charge overcurrent detection delay time

(Load short circuit detection delay time is internally fixed.)

• S-8205A Series: used for 4-series cell, S-8205B Series: used for 5-series cell

• Independent charging and discharge control by the control pins

• Power-down function "yes" / "no" is selectable.

• High-withstand voltage element

Absolute maximum rating : 28 V

• Wide range of operation voltage

2 V to 24 V

• Wide range of operation temperature

Ta = −40°C to +85°C

• Low current consumption

During operation

40 μA max. (Ta = +25°C)

During power-down

• Lead-free (Sn 100%), halogen-free*5

0.1 μA max. (Ta = +25°C)

*1. The overcharge detection voltage n (n = 1 to 5) and overdischarge detection voltage (n = 1 to 5) are not selectable

if the voltage difference between them is 0.6 V or less.

*2. Overcharge hysteresis voltage n (n = 1 to 5) is selectable in 0 V, or in 0.1 V to 0.4 V in 50 mV step.

(Overcharge hysteresis voltage = Overcharge detection voltage − Overcharge release voltage)

*3. Overdischarge hysteresis voltage n (n = 1 to 5) is selectable in 0 V, or in 0.2 V to 0.7 V in 100 mV step.

(Overdischarge hysteresis voltage = Overdischarge release voltage − Overdischarge detection voltage)

*4. The discharge overcurrent detection voltage and load short circuit detection voltage are not selectable if the voltage

difference between them is 0.3 V or less.

*5. Refer to " Product Name Structure" for details.

Application

• Rechargeable lithium-ion battery pack

Package

• 16-Pin TSSOP

Seiko Instruments Inc.

Rev.1.5_01

BATTERY PROTECTION IC FOR 4-SERIES OR 5-SERIES CELL PACK

S-8205A/B Series

3. Product Name List

Table 2 S-8205A Series (For 4-Series Cell)

Product Name

Overcharge

Detection

Voltage

[VCU]

Overcharge

Release

Voltage

[VCL]

Overdischarge

Detection

Voltage

[VDL]

Overdischarge

Release

Voltage

[VDU]

Discharge

Overcurrent

Detection

Voltage

[VDIOV]

Load Short

Circuit

Detection

Voltage

[VSHORT]

Charge

Overcurrent

Detection

Voltage

[VCIOV]

Battery

Charge

Function

Power-

down

Function

Delay

Time*1

S-8205AAA-TCT1U 4.225 V 4.125 V 2.30 V 3.00 V 0.15 V 0.50 V −0.10 V Available Yes

(1)

S-8205AAB-TCT1U 4.225 V 4.075 V 2.30 V 3.00 V 0.20 V 0.50 V −0.10 V Available Yes

(1)

*1. The delay time is set by the external capacitor.

But the discharge overcurrent release delay time (tDIOVR) and charge overcurrent release delay time (tCIOVR) are

calculated by discharge overcurrent detection delay time (tDIOV) and charge overcurrent detection delay time (tCIOV) as

the following equations. 1 [ms] (typ.) is the internal delay time of the S-8205A Series.

(1) tDIOVR = tDIOV × 10 + 1 [ms] (typ.), tCIOVR = tCIOV × 10 + 1 [ms] (typ.)

(2) tDIOVR = tDIOV × 0.05 + 1 [ms] (typ.), tCIOVR = tCIOV × 0.05 + 1 [ms] (typ.)

Moreover, refer to "8. Delay Time Setting" in " Operation" for calculational methods of delay times.

Remark Please contact our sales office for products with detection voltage values other than those specified above.

Table 3 S-8205B Series (For 5-Series Cell)

Product Name

S-8205BAA-TCT1U

S-8205BAB-TCT1U

S-8205BAC-TCT1U

S-8205BAD-TCT1U

S-8205BAE-TCT1U

S-8205BAF-TCT1U

S-8205BAG-TCT1U

S-8205BAH-TCT1U

S-8205BAI-TCT1U

S-8205BAJ-TCT1U

S-8205BAK-TCT1U

S-8205BAL-TCT1U

S-8205BAP-TCT1U

S-8205BAQ-TCT1U

Overcharge

Detection

Voltage

[VCU]

4.225 V

4.200 V

4.250 V

4.225 V

4.200 V

4.250 V

4.200 V

3.900 V

Overcharge

Release

Voltage

[VCL]

Overdischarge

Detection

Voltage

[VDL]

Overdischarge

Release

Voltage

[VDU]

Discharge

Overcurrent

Detection

Voltage

[VDIOV]

4.125 V 2.30 V 3.00 V 0.15 V

4.075 V 2.30 V 3.00 V 0.20 V

4.100 V 2.50 V 3.20 V 0.10 V

4.000 V 2.70 V 3.00 V 0.15 V

4.100 V 2.50 V 3.20 V 0.15 V

4.050 V 2.70 V 3.00 V 0.20 V

4.150 V 2.70 V 3.00 V 0.20 V

4.050 V 2.00 V 2.50 V 0.15 V

4.075 V 2.30 V 3.00 V 0.10 V

4.100 V 2.50 V 3.20 V 0.10 V

4.000 V 2.70 V 3.00 V 0.15 V

4.100 V 2.70 V 3.00 V 0.15 V

4.100 V 2.50 V 3.20 V 0.10 V

3.750 V 2.00 V 2.70 V 0.20 V

Load Short

Circuit

Detection

Voltage

[VSHORT]

0.50 V

0.80 V

1.00 V

0.50 V

0.80 V

1.00 V

0.50 V

0.80 V

0.50 V

Charge

Overcurrent

Detection

Voltage

[VCIOV]

Battery

Charge

Function

−0.10 V Available

−0.20 V Available

−0.10 V Available

−0.05 V Unavailable

−0.10 V Available

−0.15 V Available

Power-

down

Function

Yes

Delay

Time*1

(1)

(2)

(1)

*1. The delay time is set by the external capacitor.

But the discharge overcurrent release delay time (tDIOVR) and charge overcurrent release delay time (tCIOVR) are

calculated by discharge overcurrent detection delay time (tDIOV) and charge overcurrent detection delay time (tCIOV) as

the following equations. 1 [ms] (typ.) is the internal delay time of the S-8205B Series.

(1) tDIOVR = tDIOV × 10 + 1 [ms] (typ.), tCIOVR = tCIOV × 10 + 1 [ms] (typ.)

(2) tDIOVR = tDIOV × 0.05 + 1 [ms] (typ.), tCIOVR = tCIOV × 0.05 + 1 [ms] (typ.)

Moreover, refer to "8. Delay Time Setting" in " Operation" for calculational methods of delay times.

Remark Please contact our sales office for products with detection voltage values other than those specified above.

Seiko Instruments Inc.

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S-8205BAA-TCT1U Datasheet PDF - Seiko

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