Datasheet > S-8241ABDPG-KBDTFG

S-8241ABDPG-KBDTFG

更新时间： 2024-11-02 04:32:35

品牌	Logo	应用领域
精工 - SII		电池光电二极管
页数	文件大小	规格书
38页	655K
描述
BATTERY PROTECTION IC FOR 1-CELL PACK

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Rev.7.6_00

BATTERY PROTECTION IC

FOR 1-CELL PACK

S-8241 Series

The S-8241 Series is a series of lithium ion/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)

3.8 to 4.4 V ^*1Accuracy of ±50 mV

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

• Overdischarge release voltage: Accuracy of ±100 mV

2.0 to 3.4 V ^*2

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

Accuracy of ±100 mV

• Overcharge release voltage:

• Overcurrent 2 detection voltage: 0.5 V (fixed)

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

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

(3) Delay times (overcharge: t_CU; overdischarge: t_DL; overcurrent 1: t_lOV1; overcurrent 2: t_lOV2) 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 equal to 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 in 100 mV steps. (However, selection

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

Applications

• Lithium-ion rechargeable battery packs

• Lithium- polymer rechargeable battery packs

Packages

Drawing code

Package name

Package

MP005-A

PG006-A

Tape

Reel

Land

⎯

PG006-A

SOT-23-5

SNT-6A

MP005-A

PG006-A

MP005-A

PG006-A

Seiko Instruments Inc.

12 3 4 5 6 7...38

中文翻译

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