S-8242BAP-T8T1G datasheet, PDF

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S-8242BAP-T8T1G: Description2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8; Categoryaccessories; File Size365KB，30 Pages; ManufacturerSII; Websitehttp://www.sii.co.jp/

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2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8

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Rev.1.4

_00

BATTERY PROTECTION IC

FOR 2-SERIAL-CELL PACK

S-8242B Series

The S-8242B Series are protection ICs for 2-serial-cell

lithium-ion/lithium polymer rechargeable batteries and

include high-accuracy voltage detectors and delay circuits.

These ICs are suitable for protecting 2-cell rechargeable

lithium-ion / lithium polymer battery packs from overcharge,

overdischarge, and overcurrent.

Features

High-accuracy voltage detection for each cell

•

Overcharge detection voltage n (n

1, 2)

3.9 V to 4.5 V (50 mV steps)

Accuracy

±25

•

Overcharge release voltage n (n

1, 2)

3.8 V to 4.5 V

Accuracy

±50

•

Overdischarge detection voltage n (n

1, 2)

2.0 V to 3.0 V (100 mV steps)

Accuracy

±50

Accuracy

±100

•

Overdischarge release voltage n (n

1, 2)

2.0 V to 3.4 V

*1.

Overcharge release voltage

Overcharge detection voltage

−

Overcharge hysteresis voltage

(Overcharge hysteresis voltage n (n

1, 2) can be selected as 0 V or from a range of 0.1 V to

0.4 V in 50 mV steps.)

*2.

Overdischarge release voltage

Overdischarge detection voltage

Overdischarge hysteresis voltage

(Overdischarge hysteresis voltage n (n

1, 2) can be selected as 0 V or from a range of 0.1 V to

0.7 V in 100 mV steps.)

(2) Two-level overcurrent detection (overcurrent 1, overcurrent 2)

•

Overcurrent detection voltage 1

0.05 V, 0.08 V to 0.30 V (10 mV steps)

Accuracy

±15

•

Overcurrent detection voltage 2

1.2 V (fixed)

Accuracy

±300

(3) Delay times (overcharge, overdischarge, overcurrent) are generated by an internal circuit (external capacitors are

unnecessary).

(4) 0 V battery charge function available/unavailable are selectable.

(5) Charger detection function

•

The overdischarge hysteresis is released by detecting negative voltage at the VM pin (−0.7 V typ.) (Charger

detection function).

(6) High-withstanding-voltage devices

Absolute maximum rating: 28 V

(7) Wide operating temperature range

−40°C

+85 °C

(8) Low current consumption

Operation mode

µA

max. (+25°C)

Power-down mode

0.1

µA

max. (+25°C)

(9) Small package

SNT-8A, 8-Pin TSSOP

(10) Lead-free products

(1)

Applications

•

Lithium-ion rechargeable battery packs

•

Lithium polymer rechargeable battery packs

Packages

Package Name

SNT-8A

8-Pin TSSOP

Package

PH008-A

FT008-A

Drawing Code

Tape

PH008-A

FT008-E

Reel

PH008-A

FT008-E

Land

PH008-A



Seiko Instruments Inc.

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