BQ2005S datasheet(1/16 Pages) TI

部件名	BQ2005S

功能描述	Fast-Charge IC for Dual-Battery Packs

PDF	16 Pages

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制造商	TI [Texas Instruments]

网页	http://www.ti.com

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Features

➤

Sequential fast charge and con-

ditioning of two NiCd or NiMH

nickel cadmium or nickel-metal

hydride battery packs

➤

Hysteretic PWM switch-mode

current regulation or gated con-

trol of an external regulator

➤

Easily integrated into systems

or used as a stand-alone charger

➤

Pre-charge qualification of tem-

perature and voltage

➤

Direct LED outputs display

battery and charge status

➤

Fast-charge termination by

∆ temperature/∆ time, -∆V, maxi-

mum voltage, maximum tem-

perature, and maximum time

➤

Optional top-off and pulse-

trickle charging

General Description

The bq2005 Fast-Charge IC provides

comprehensive fast charge control

functions together with high-speed

switching power control circuitry on a

monolithic CMOS device for sequential

charge management in dual battery

pack applications.

Integration of closed-loop current

control circuitry allows the bq2005

to be the basis of a cost-effective so-

lution for stand-alone and system-

integrated chargers for batteries of

one or more cells.

Switch-activated discharge-before-

charge allows bq2005-based chargers

to support battery conditioning and

capacity determination.

High-efficiency power conversion is

accomplished using the bq2005 as a

hysteretic PWM controller for

switch-mode regulation of the charg-

ing current. The bq2005 may alterna-

tively be used to gate an externally

regulated charging current.

Fast charge may begin on application

of the charging supply, replacement

of the battery, or switch depression.

For safety, fast charge is inhibited

unless/until the battery tempera-

ture and voltage are within config-

ured limits.

Temperature, voltage, and time are

monitored throughout fast charge.

Fast charge is terminated by any of

the following:

n Rate of temperature rise

(

∆T/∆t)

n Negative delta voltage (-

∆V)

n Maximum voltage

n Maximum temperature

n Maximum time

After fast charge, optional top-off

and pulsed current maintenance

phases are available.

1

Fast-Charge IC

for Dual-Battery Packs

bq2005

Pin Connections

Pin Names

SLUS079–JUNE 1999 F

DCMDA Discharge command input,

battery A

DVEN

-∆V enable

TM1

Timer mode select 1

TM2

Timer mode select 2

TCO

Temperature cut-off

TSA,

Temperature sense input,

TSB

battery A/B

BATA,

Battery voltage input,

BATB

battery A/B

SNSA,

Sense resistor input ,

SNSB

battery A/B

1

PN200501.eps

20-Pin DIP or SOIC

2

3

4

5

6

7

8

20

19

18

17

16

15

14

13

9

10

12

11

DCMDA

DVEN

TM1

TM2

TCO

TSA

TSB

BATA

BATB

SNSA

FCCB

CHB

MODB

MODA

VCC

VSS

FCCA

CHA

DISA

SNSB

DISA

Discharge control output,

battery A

CHA,

Charge status output,

CHB

battery A/B

FCCA,

Fast charge complete output,

FCCB

battery A/B

VSS

System ground

VCC

5.0V ±10% power

MODA, Charge current control

MODB

output, battery A/B

类似零件编号 - BQ2005S

制造商	部件名	数据表	功能描述
Texas Instruments	BQ2005S	664Kb / 18P	Fast- Charge IC for Dual-Bat tery Packs
	BQ2005S	545Kb / 22P	Fast- Charge IC for Dual- Bat tery Packs AU GUST 2000 G
	BQ2005S.B	545Kb / 22P	Fast- Charge IC for Dual- Bat tery Packs AU GUST 2000 G
	BQ2005SG4	664Kb / 18P	Fast- Charge IC for Dual-Bat tery Packs
	BQ2005STR	664Kb / 18P	Fast- Charge IC for Dual-Bat tery Packs

More results

类似说明 - BQ2005S

制造商	部件名	数据表	功能描述
Texas Instruments	BQ2003	139Kb / 15P	Fast-Charge IC
	BQ2004	141Kb / 16P	Fast-Charge IC
	BQ2007	172Kb / 16P	Fast-Charge IC
BesTech Power Co., Ltd	HCX-D107	237Kb / 1P	For 64V 20S LiFePO4 Battery Packs
BesTech Power Co., Ltd	HCX-D131	189Kb / 1P	For 76.8V 24S LiFePO4 Battery Packs
Texas Instruments	BQ2003	482Kb / 18P	Fast-Charge IC
	BQ2004	617Kb / 22P	Fast-Charge IC
	BQ2005	664Kb / 18P	Fast- Charge IC for Dual-Bat tery Packs
	BQ2007	350Kb / 16P	Fast-Charge IC
Analog Devices	LTC2949	3Mb / 80P	Current, Voltage, and Charge Monitor for High Voltage Battery Packs 11/20-REV.A