BQ2168LB

更新时间： 2024-11-09 13:05:59

品牌	Logo	应用领域
德州仪器 - TI		仪表
页数	文件大小	规格书
9页	849K
描述
BQ2168LB

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中文翻译

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技术参数
数据手册

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BQ2168LB 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84
Base Number Matches：	1

BQ2168LB 数据手册

bq2168

Li-Ion Power Gauge™ Module

with Pack Supervisor

Features

➤

Complete and compact lithium ion gas gauge and

protection solution for three or four series cells

Accurate measurement of available battery

capacity

Provides overvoltage, undervoltage, and

overcurrent protection

Designed for battery pack integration

–

Small size

Includes bq2050H and bq2058 ICs

On-board charge and discharge control FETs

Low operating current for minimal battery drain

➤

High side FET control

or graphite anode), and the threshold limits. Figure 1

shows how the module connects to the cells.

Battery capacity available through single-wire

serial port

The bq2168L includes five LEDs to display remaining capac-

ity in 20% increments of the learned capacity. The LEDs are

activated with the onboard push-button switch.

➤

“L” version includes 5 push-button activated LEDs

to display state-of-charge information

A module development kit is also available for the

bq2168. The bq2168B-KT or the bq2168LB-KT includes

one configured module and the following:

General Description

The bq2168 Power Gauge Module provides a complete and

compact battery management solution for Li-Ion battery

packs. Designed for battery pack integration, the bq2168

combines the bq2050H Power Gauge IC with the bq2058

Supervisor IC on a small printed circuit board. The board

includes all the necessary components to accurately monitor

battery capacity and protect the cells from overvoltage, un-

dervoltage, and overcurrent conditions. The board works

with three or four Li-Ion series cells.

1) An EV2200-50H interface board that allows con-

nection to the serial port of any AT-compatible com-

puter.

2) Menu driven software to display charge/discharge

activity and to allow user interface to the bq2050H

from any standard Windows 3.1x or 95 PC.

Pin Descriptions

The Power Gauge IC uses the on-board sense resistor to

track charge and discharge activity of the battery pack.

Critical battery information can be accessed through the

serial communications port at HDQ. The supervisor cir-

cuit consists of the bq2058 and two FETs. The bq2058

controls the FETs to protect the batteries during

charge/discharge cycles and short circuit conditions. The

bq2168 provides contacts for the positive and negative

terminals of each battery in the stack. Please refer to

the bq2050H and bq2058 data sheets for the specifics on

the operation of the power gauge and supervisor ICs.

Pack positive

POS

BAT_1P/Battery 1 positive input

BAT_1N/Battery 1 negative input

BAT_2N/Battery 2 negative input

BAT_3N/Battery 3 negative input

BAT_4N/Battery 4 negative input

Overcurrent test input

B1P

B1N

B2N

B3N

B4N

ITEST

HDQ

NEG

Unitrode configures the bq2168 based on the informa-

tion requested in Table 1. The configuration defines the

number of series cells, the nominal battery pack capac-

ity, the self-discharge rate, the Li-Ion battery type (coke

Serial communications port

Pack negative

5/99 B

12 3 4 5 6 7...9

中文翻译

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与BQ2168LB相关器件

型号	品牌	获取价格	描述	数据表
BQ2168LB-	TI	获取价格	Li-Ion Power Gauge⑩ Module with Pack Supervis
BQ2168LB-KT	TI	获取价格	Li-Ion Power Gauge⑩ Module with Pack Supervis
BQ2168LB-XXX	TI	获取价格	Li-Ion Power Gauge⑩ Module with Pack Supervis
BQ2168LMODULE	TI	获取价格	Li-Ion Power Gaugeâ¢ Module with Pack Superv
BQ2168MODULE	TI	获取价格	Li-Ion Power Gaugeâ¢ Module with Pack Superv
BQ219XL	TI	获取价格	Smart Battery Module with LEDs
BQ219XLB	TI	获取价格	Smart Battery Module with LEDs
BQ219XLB-	TI	获取价格	Smart Battery Module with LEDs
BQ219XLB-018	TI	获取价格	Smart Battery Module with LEDs
BQ219XLB-KT	TI	获取价格	Smart Battery Module with LEDs

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