Datasheet > BQ29410_07

BQ29410_07

更新时间： 2024-09-16 04:09:27

品牌	Logo	应用领域
德州仪器 - TI		电池
页数	文件大小	规格书
13页	159K
描述
VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES (2nd-LEVEL PROTECTION)

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BQ29410_07 数据手册

bq29410, bq29411, bq29412, bq29413

bq29414, bq29415, bq29419

www.ti.com

SLUS669E–AUGUST 2005–REVISED MAY 2007

VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES

(2 -LEVEL PROTECTION)

FEATURES

FUNCTION

•

2-, 3-, or 4-Cell Secondary Protection

Each cell in a multiple-cell pack is compared to an

internal reference voltage. If one cell reaches an

overvoltage condition, the protection sequence

begins. The bq2941x device starts charging an

external capacitor through the CD pin. When the CD

pin voltage reaches 1.2 V, the OUT pin changes

from a low level to a high level.

•

Low Power Consumption I_CC< 2 µA

[VCELL_(ALL)< V_(PROTECT)

]

•

Fixed High Accuracy Overvoltage Protection

Threshold

–

bq29410 = 4.35 V

bq29411 = 4.40 V

bq29412 = 4.45 V

bq29413 = 4.50 V

bq29414 = 4.55 V

bq29415 = 4.60 V

bq29419 = 4.30 V

DCT PACKAGE

(TOP VIEW)

OUT

VDD

VC1

VC2

VC3

VC4

GND

•

Programmable Delay Time of Detection

High Power Supply Ripple Rejection

Stable During Pulse Charge Operation

PW PACKAGE

(TOP VIEW)

VC1

OUT

APPLICATIONS

•

2^nd-Level Overvoltage Protection in Li-Ion

Battery Packs in:

VC2

VC3

GND

VDD

VC4

–

Notebook Computers

Portable Instrumentation

Portable Equipment

DESCRIPTION

The bq2941x is a secondary overvoltage protection

IC for 2-, 3-, or 4-cell lithium-ion battery packs that

incorporates a high-accuracy precision overvoltage

detection circuit. It includes a programmable delay

circuit for overvoltage detection time.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

UNLESS OTHERWISE NOTED this document contains

PRODUCTION DATA information current as of publication date.

Products conform to specifications per the terms of Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...13

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与BQ29410_07相关器件

型号	品牌	获取价格	描述	数据表
BQ29410DCT3R	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES (2nd-LEVEL PROTECTION)
BQ29410DCT3RE6	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES (2nd-LEVEL PROTECTION)
BQ29410DCTR	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES (2nd-LEVEL PROTECTION)
BQ29410DCTRG4	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES (2nd-LEVEL PROTECTION)
BQ29410DCTT	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES (2nd-LEVEL PROTECTION)
BQ29410DCTTG4	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES (2nd-LEVEL PROTECTION)
BQ29410PW	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES (2nd-LEVEL PROTECTION)
BQ29410PWG4	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES (2nd-LEVEL PROTECTION)
BQ29410PWR	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES (2nd-LEVEL PROTECTION)
BQ29410PWRG4	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Li-Ion BATTERIES (2nd-LEVEL PROTECTION)

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