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S-8241ABKMC-GBKT2G Datasheet (PDF) - Seiko Instruments Inc

S-8241ABKMC-GBKT2G Datasheet PDF - Seiko Instruments Inc
Part # S-8241ABKMC-GBKT2G
Download  S-8241ABKMC-GBKT2G Download

File Size   553.07 Kbytes
Page   39 Pages
Manufacturer  SII [Seiko Instruments Inc]
Direct Link  http://www.sii.co.jp
Logo SII - Seiko Instruments Inc
Description BATTERY PROTECTION IC FOR 1-CELL PACK

S-8241ABKMC-GBKT2G Datasheet (PDF)

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S-8241ABKMC-GBKT2G Datasheet PDF - Seiko Instruments Inc

Part # S-8241ABKMC-GBKT2G
Download  S-8241ABKMC-GBKT2G Click to download

File Size   553.07 Kbytes
Page   39 Pages
Manufacturer  SII [Seiko Instruments Inc]
Direct Link  http://www.sii.co.jp
Logo SII - Seiko Instruments Inc
Description BATTERY PROTECTION IC FOR 1-CELL PACK

S-8241ABKMC-GBKT2G Datasheet (HTML) - Seiko Instruments Inc

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S-8241ABKMC-GBKT2G Product details

BATTERY PROTECTION IC FOR 1-CELL PACK



The S-8241 Series is a series of lithiumion/lithium polymer rechargeable battery protection ICs incorporating high-accuracy voltage detection circuits and delay circuits.

These ICs are suitable for protection of 1-cell lithium ion/lithium polymer battery packs from overcharge, overdischarge and overcurrent.



„Features

(1)  Internal high-accuracy voltage detection circuit

•Overcharge detection voltage:  3.9 to 4.4 V (5 mV-step)

   Accuracy of ±25 mV(+25 °C) and ± 30 mV(−5 to +55 °C)

•Overcharge release voltage:  3.8 to 4.4 V*1  Accuracy of ±50 mV

•Overdischarge detection voltage:  2.0 to 3.0 V (100 mV-step)  Accuracy of ±80 mV

•Overdischarge release voltage:  2.0 to 3.4 V*2  Accuracy of ±100 mV

•Overcurrent 1 detection voltage:  0.05 to 0.3 V (5 mV-step)  Accuracy of ±20 mV

•Overcurrent 2 detection voltage:  0.5 V (fixed)  Accuracy of ±100 mV

(2)  A high voltage withstand device isused for charger connection pins 

     (VM and CO pins: Absolute maximum rating = 26 V)

(3)  Delay times (overcharge: tCU; overdischarge: tDL; overcurrent 1: tlOV1 ; overcurrent 2: tlOV2) are generated by an internal circuit. (External capacitors are unnecessary.)  Accuracy of ±30%

(4)  Internal three-step overcurrent detection circuit (overcurrent 1, overcurrent 2, and load short-circuiting)

(5)  Either the 0 V battery charging function or 0 V battery charge inhibiting function can be selected.

(6)  Products with and without a power-down function can be selected.

(7)  Charger detection function and abnormal charge current detection function

•The overdischarge hysterisis is released by detecting a negative VM pin voltage (typ. −1.3 V) (Charger detection function).

•If the output voltage at DO pin is high and the VM pin voltage becomes equalto or lower than the charger detection voltage (typ. −1.3 V), the output voltage at CO pin goes low (Abnormal charge current detection function).

(8)  Low current consumption

    •Operation:  3.0 μA typ.  5.0 μA max.

    •Power-down mode:  0.1 μA max.

(9)  Wide operating temperature range: −40 to +85 °C

(10)  Small package  SOT-23-5, SNT-6A

(11) Lead-free products

*1.Overcharge release voltage = Overcharge detection voltage - Overcharge hysteresis

The overcharge hysteresis can be selected in the range 0.0, or 0.1 to 0.4 V in 50 mV steps. (However, selection

“Overcharge release voltage<3.8 V” is enabled.)

*2.Overdischarge release voltage = Overdischarge detection voltage + Overdischarge hysteresis

The overdischarge hysteresis can be selected in the range 0.0 to 0.7 V in100 mV steps. (However, selection

“Overdischarge release voltage>3.4 V” is enabled.)



„Applications

•Lithium-ion rechargeable battery packs

•Lithium- polymer rechargeable battery packs




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