s-8261aaj Seiko Instruments Inc., s-8261aaj Datasheet

s-8261aaj

Manufacturer Part Number

s-8261aaj

Description

Battery Protection Ic For 1-cell Pack

Manufacturer

Seiko Instruments Inc.

Datasheet

1.S-8261AAJ.pdf (33 pages)

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Current page: 1 of 33
Download datasheet (594Kb)

Rev.4.6

BATTERY PROTECTION IC FOR 1-CELL PACK

Features

Applications

Package

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(10) Small package SOT-23-6

(11) Lead-free product

*1. Overcharge release voltage

*2. Overdischarge release voltage

SOT-23-6

Lithium-ion rechargeable battery packs

Lithium polymer rechargeable battery packs

release voltage

overdischarge release voltage

Internal high accuracy voltage detection circuit

High voltage device is used for charger connection pins (VM and CO pins: absolute maximum rating

Delay times (overcharge: t

circuit. No external capacitor is necessary.

Three-step overcurrent detection circuit is included (overcurrent 1, overcurrent 2 and load short-circuiting).

0 V battery charge function “Available” / “Unavailable” are selectable.

Power-down function “Yes” / “No” are selectable.

Charger detection function and abnormal charge current detection function

Low current consumption

Wide operating temperature range

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

When the output voltage of the DO pin is high and the voltage at the VM pin is equal to or lower than the charger detection

voltage ( 0.7 V typ.), the output voltage of the CO pin goes low (Abnormal charge current detection function).

Overcharge detection voltage

Overcharge hysteresis voltage

Overdischarge detection voltage

Overdischarge hysteresis voltage

Overcurrent 1 detection voltage

Overcurrent 2 detection voltage

Operation mode

Power-down mode

The overcharge hysteresis voltage can be selected from the range 0.1 V to 0.4 V in 50 mV step.

The overdischarge hysteresis voltage can be selected from the range 0.0 V to 0.7 V in 100 mV step.

Package name

_00

3.8 V is prohibited.)

3.5 A typ., 7.0 A max.

0.1 A max.

Overcharge detection voltage

, overdischarge: t

3.4 V is prohibited.)

Overdischarge detection voltage

MP006-A

Package

40 C to 85 C

3.9 V to 4.4 V (applicable in 5 mV step)

0.1 V to 0.4 V

2.0 V to 3.0 V (applicable in 10 mV step)

0.0 V to 0.7 V

0.05 V to 0.3 V (applicable in 10 mV step) Accuracy:

0.5 V (fixed)

Seiko Instruments Inc.

, overcurrent 1: t

The S-8261 series are lithium-ion / lithium polymer rechargeable

battery protection ICs incorporating high-accuracy voltage

detection circuit and delay circuit.

The S-8261 series are suitable for protection of single-cell lithium

ion/lithium polymer battery packs from overcharge, overdischarge

and overcurrent.

Overcharge hysteresis voltage (where overcharge

Drawing code

lOV1

MP006-A

Overdischarge hysteresis voltage (where

, overcurrent 2: t

Tape

Accuracy:

lOV2

S-8261 Series

) are generated by an internal

25 mV ( 25 C) and

30 mV ( 5 C to 55 C)

25 mV

50 mV

15 mV

100 mV

20%

MP006-A

Reel

28 V).

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