BQ29400

更新时间： 2024-09-14 22:39:39

品牌	Logo	应用领域
德州仪器 - TI		电池
页数	文件大小	规格书
10页	148K
描述
VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Lion BATTERIES

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中文翻译

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BQ29400 数据手册

bq29400, bq29400A

bq29401, bq29405

www.ti.com

SLUS568B–JULY 2003–REVISED NOVEMBER 2004

VOLTAGE PROTECTION_NF_DOR 2-, 3-, OR 4-CELL Lion BATTERIES

(2 PROTECTION)

FEATURES

FUNCTION

•

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

Low Power Consumption I_CC< 2 µA

[VCELL_(ALL)< V_(PROTECT)

Each cell in a multiple cell pack is compared to an

internal reference voltage. If one cell reaches an

overvoltage condition, the protection sequence be-

gins. The bq2940x 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.

•

]

•

High Accuracy Over Sense Voltage:

– bq29400: 4.35 V ±25 mV

– bq29400A: 4.40 V ±25 mV

– bq29401: 4.45 V ±25 mV

PW PACKAGE

(TOP VIEW)

– bq29405: 4.65 V ±25 mV

•

Prefixed Protection Threshold Voltage

Programmable Delay Time

VC1

VC2

VC3

GND

OUT

VDD

High Power Supply Ripple Rejection

Stable During Pulse Charge Operation

VC4

APPLICATIONS

•

DCT PACKAGE

(TOP VIEW)

2^ndLevel Protection in Lion Battery Packs in

– Notebook PCs

OUT

VC1

– Portable Instrumentation

– Medical and Test Equipment

VDD

VC2

VC3

VC4

GND

DESCRIPTION

The bq29400, bq29400A, bq29401, and bq29405 are

BiCMOS secondary protection ICs for 2-, 3-, or 4-cell

Lithium-Ion battery packs that incorporate

high-accuracy precision over voltage detection circuit.

They include a programmable delay circuit for over

voltage detection time.

ORDERING INFORMATION

PACKAGE

SYMBOL

T_A

V_(PROTECT)

MSOP (DTC)

bq29400DCT3

bq29400ADCT3

bq29401DCT3

bq29405DCT3

TSSOP (PW)⁽¹⁾

bq29400PW

Not Available

bq29401PW

Not Available

SYMBOL

4.35 V

4.40 V

4.45 V

4.65 V

CIQ

CIT

CIR

CIS

2400

2401

–25°C to 85°C

(1) The bq29400, bq29400A, bq29401, and bq29405 are available taped and reeled. Add an R suffix to the device type (e.g.,

bq29400PWR) to order tape and reel version.

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.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...10

中文翻译

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与BQ29400相关器件

型号	品牌	获取价格	描述	数据表
BQ29400A	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Lion BATTERIES
BQ29400ADCT3	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Lion BATTERIES
BQ29400ADCT3R	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Lion BATTERIES
BQ29400DCT3	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Lion BATTERIES
BQ29400DCT3E6	TI	获取价格	针对 2 节、3 节或 4 节锂离子和锂聚合物电池的 2 级过压保护（第 2 级保护） \|
BQ29400PW	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Lion BATTERIES
BQ29400PWR	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Lion BATTERIES
BQ29401	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Lion BATTERIES
BQ29401DCT	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Lion BATTERIES
BQ29401DCT3	TI	获取价格	VOLTAGE PROTECTION FOR 2-, 3-, OR 4-CELL Lion BATTERIES

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