S-8244AAAFN Seiko, S-8244AAAFN Datasheet

S-8244AAAFN

Manufacturer Part Number

S-8244AAAFN

Description

Manufacturer

Seiko

Datasheet

1.S-8244AAAFN.pdf (20 pages)

Specifications of S-8244AAAFN

02+

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Rev.1.3

BATTRY PROTECTION IC FOR 1-SERIAL TO 4-SERIAL

(SECONDARY PROTECTION)

Features

• Internal high-precision voltage detector circuit

• High withstand voltage device absolute maximum rating:

• Wide operating voltage range:

• Delay time during detection:

• Low current consumption

• Output logic and form - 4 types:

Applications

•

Package

•

Lithium ion rechargeable battery packs (secondary protection)

8-Pin MSOP (Package drawing code: FN008-A)

1) Overcharge detection voltage range:

2) Hysteresis:

At 3.5 V for each cell:

At 2.3 V for each cell:

_00

CMOS output active “H”

CMOS output active “L”

Pch open drain output active “L”

Nch open drain output active “H”

(only CMOS output for 0.045 V hysteresis models)

3.70 to 4.50 V:

(at a 5 mV/step)

5 optional models available and selectable:

0.38±0.1 V, 0.25±0.07 V, 0.13±0.04 V, 0.045±0.02 V, None

The S-8244 Series is used for secondary protection of lithium-ion

batteries with from one to four cells, and incorporates a high-precision

voltage detector circuit and a delay circuit.

accommodate series connection of one to four cells.

3.0 µA max. (+25°C)

2.4 µA max. (+25°C)

3.6 V to 24 V (refers to the range in which the delay circuit can

operate normally after overvoltage is detected)

Can be set by an external capacitor.

Seiko Instruments Inc.

Accuracy of ± 25 mV (at +25°C)

Accuracy of ± 50 mV (at -40 to +85°C)

26 V

Short-circuits between cells

S-8244 Series

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