厂商Texas Instruments 电源电源管理 IC BQ29400DCT3E6 数据手册，datasheet pdf下载

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型号：	BQ29400DCT3E6
厂商：	Texas Instruments
标准：
分类：	电源，电源管理 IC
描述：	battery management 2nd level over vltg protection
PDF：	预览
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BQ29400DCT3E6的详细信息

Manufacturer：	Texas Instruments
Product Category：	Battery Management
RoHS：	Yes
Product Type：	Battery Protection
Brand：	Texas Instruments
Battery Type：	Li-Ion
Output Voltage：	4.35 V
Operating Supply Voltage：	4 V to 25 V
Maximum Operating Temperature：	+ 85 C
Minimum Operating Temperature：	- 25 C
Package / Case：	SSOP-8
Packaging：	Reel
Mounting Style：	SMD/SMT
Series：	BQ29400
Factory Pack Quantity：	3000
Unit Weight：	22.500 mg

Not Recommended for New Designs:

bq29400, bq29400A, bq29405

bq29400, bq29400A

bq29401, bq29405

www.ti.com

SLUS568C–JULY 2003–REVISED SEPTEMBER 2005

VOLTAGE PROTECTION FOR 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

begins. 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)

MSSOP (DCT3)

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.

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