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BQ2013H

更新时间： 2024-10-27 22:48:27

品牌	Logo	应用领域
德州仪器 - TI		仪表
页数	文件大小	规格书
24页	194K
描述
Gas Gauge IC for Power- Assist Applications

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中文翻译

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BQ2013H 数据手册

bq2013H

Gas Gauge IC for Power-

Assist Applications

Features

General Description

Nominal available charge may be

directly indicated using a five-seg-

ment LED display. These segments

are used to graphically indicate

nominal available charge.

➤ Accurate measurement of available

The bq2013H Gas Gauge IC is in-

tended for battery-pack installation to

maintain an accurate record of a bat-

tery’s available charge. The IC moni-

tors a voltage drop across a sense resis-

tor connected in series between the

negative battery terminal and ground

to determine charge and discharge ac-

tivity of the battery. The bq2013H is

designed for high cpaacity battery

packs used in high-discharge rate sys-

tems.

charge in rechargeable batteries

➤ Designed for electric assist bicycles

and other applications

The bq2013H supports a simple

single-line bi-directional serial link to

an external processor (common

ground). The bq2013H outputs bat-

tery information in response to exter-

nal commands over the serial link. To

support battery pack testing, the

outputs may also be controlled by

command. The external processor

may also overwrite some of the

bq2013H gas gauge data registers.

➤ Measures a wide dynamic current

range

➤ Supports NiCd, NiMH or lead acid

➤ Designed for battery pack inte-

gration

- ¹²⁰µA typical standby current

(self-discharge estimation mode)

Battery self-discharge is estimated

based on an internal timer and tem-

perature sensor. Compensations for

battery temperature, rate of charge,

and self-discharge are applied to the

charge counter to provide available

capacity information across a wide

range of operating conditions. Initial

battery capacity, self-discharge rate,

display mode, and charge compensa-

tion are set using the PROG_1-6pins.

Actual battery capacity is automati-

cally “learned” in the course of a dis-

charge cycle from full to empty.

- ^{Small size enables imple-}

mentations in as little as

square inch of PCB

The bq2013H may operate directly

from four nickel cells or three lead

acid. With the REF output and an

external transistor, a simple, inexpen-

sive regulator can be built to provide

➤ Direct drive of LEDs for capacity

display

➤ Automatic charge and self-

discharge compensation using in-

ternal temperature sensor

V_CCfrom a greater number of cells.

➤ Simple single-wire serial commu-

nications port for subassembly

testing

Internal registers include available

charge, temperature, capacity, battery

ID, and battery status.

➤ 16-pin narrow SOIC

Pin Connections

Pin Names

LCOM

LED common output

REF

Voltage reference output

LCOM

SEG₁/PROG₁LED segment 1/ Program

1 input

DONE

Fast charge complete

input

SEG /PROG

REF

DONE

HDQ

RBI

SEG /PROG

SEG₂/PROG₂LED segment 2 / Program

2 input

HDQ

Serial communications

input/output

SEG /PROG

SEG₃/PROG₃LED segment 3/ Program

3 input

RBI

Battery sense input

Display control input

Sense resistor input

Supply voltage

SEG PROG

PROG

DISP

SEG₄/PROG₄LED segment 4/ Program

4 input

DISP

SEG₅/PROG₅LED segment 5/ Program

5 input

16-Pin Narrow SOIC

PN2013.eps

V_CC

PROG₆

Program 6 input

SLUS120–MAY 1999 B

12 3 4 5 6 7...24

中文翻译

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BQ2013H 替代型号

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