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BQ2002C

更新时间： 2025-08-09 22:27:51

品牌	Logo	应用领域
德州仪器 - TI		电池
页数	文件大小	规格书
12页	77K
描述
NiCd/NiMH Fast-Charge Management IC

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中文翻译

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BQ2002C 数据手册

bq2002C

NiCd/NiMH Fast-Charge Management IC

Features

General Description

Fast charge is terminated by any of

the following:

➤

Fast charge of nickel cadmium

or nickel-metal hydride batter-

The bq2002C Fast-Charge IC is a low-

cost CMOS battery-charge controller

providing reliable charge termination

for both NiCd and NiMH battery appli-

cations. Controlling a current-limited

or constant-current supply allows the

bq2002C to be the basis for a cost-

effective stand-alone or system-inte-

grated charger. The bq2002C inte-

grates fast charge with pulsed-trickle

control in a single IC for charging one

or more NiCd or NiMH battery cells.

Peak voltage detection (PVD)

Negative delta voltage (-∆V)

Maximum voltage

ies

➤

Dir ect LE D ou t pu t displa ys

charge status

Maximum temperature

Maximum time

Fast-charge termination by -∆V,

m a xim u m volt a ge, m a xim u m

t em per a t u r e, a n d m a xim u m

time

After fast charge, the bq2002C pulse-

t r ickles t h e ba t t er y per t h e pr e-

configured limits. Fast charge may be

inhibited using the INH pin. The

bq2002C may also be placed in low-

s t a n d by-p ower m od e t o r ed u ce

system power consumption.

➤

Internal band-gap voltage ref-

erence

Fast charge is initiated on application

of the charging supply or battery

replacement. For safety, fast charge is

inhibited if the battery temperature

and voltage are outside configured

limits.

Selectable pulse-trickle charge

rates

➤

Low-power mode

8-pin 300-mil DIP or 150-mil

SOIC

Pin Connections

Pin Names

Temperature sense input

Supply voltage input

Charge inhibit input

Charge control output

Timer mode select input

Charging status output

Battery voltage input

System ground

V_CC

INH

LED

BAT

V_SS

LED

BAT

INH

8-Pin DIP or

Narrow SOIC

PN-200201.eps

9/97 B

12 3 4 5 6 7...12

中文翻译

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