BQ2148LB

更新时间： 2024-11-06 13:05:59

品牌	Logo	应用领域
德州仪器 - TI		电池
页数	文件大小	规格书
8页	1206K
描述
BQ2148LB

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中文翻译

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技术参数
数据手册

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BQ2148LB 技术参数

生命周期：	Obsolete	Reach Compliance Code：	unknown
风险等级：	5.84	Is Samacsys：	N
Base Number Matches：	1

BQ2148LB 数据手册

Preliminary bq2148

Smart Battery Module with LEDs

and Pack Supervisor

Features

Complete smart battery management solution for

Li-Ion battery packs

Accurate measurement of available battery

capacity

Provides overvoltage, undervoltage, and

overcurrent protection

Designed for battery pack integration:

–

Small size

Includes bq2040 and bq2058 ICs, and

configuration EEPROM

Unitrode configures the bq2168 based on the information

requested in Table 1. The configuration defines all the

EEPROM parameters and the protection threshold. Fig-

ure 1 shows how the module connects to the cells.

–

On-board charge and discharge control FETs

Low operating current for minimal battery

drain

The bq2148L includes four LEDs to display remaining capac-

ity in 25% increments of the learned capacity. The LEDs are

activated with the onboard push-button switch.

Critical battery information available over two-wire

serial port

A module development kit is also available for the

bq2148. The bq2148B-KT or the bq2148LB-KT includes

one configured module and the following:

"L” version includes 4 push-button activated LEDs

to display state-of-charge information

1) An EV2200-40 interface board that allows connec-

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

puter.

General Description

The bq2148 Smaart Battery Module provides a complete

and compact battery management solution for Li-Ion bat-

tery packs. Designed for battery pack integration, the

bq2168 combines the bq2040H Gas 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, undervoltage, and overcurrent conditions. The

board works with three or four Li-Ion series cells.

2) Menu driven software to display charge/discharge

activity and to allow user interface to the bq2040

from any standard Windows 3.1x or 95 PC.

Pin Descriptions

PACK+/Pack positive

PACK-/Pack negative

Communications clock

Serial data

POS

NEG

SMBC

SMBD

ITEST

B1P

The Gas 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 SMBC/SMBD. The

bq2148 uses the SMBus communications protocol and

supports the Smart Battery Data Commands in the SBD

specification. The supervisor circuit 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 bq2040 and bq2058 data

sheets for the specifics on the operation of the power

gauge and supervisor ICs.

Overcurrent test input

Battery 1 positive input

Battery 1 negative input

Battery 2 negative input

Battery 3 negative input

Battery 4 negative input

B1N

B2N

B3N

B4N

5/99

12 3 4 5 6 7 8

中文翻译

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与BQ2148LB相关器件

型号	品牌	获取价格	描述	数据表
BQ2148LB-	TI	获取价格	Smart Battery Module with LEDs and Pack Supervisor
BQ2148LB-KT	TI	获取价格	Smart Battery Module with LEDs and Pack Supervisor
BQ2148LB-XXX	TI	获取价格	Smart Battery Module with LEDs and Pack Supervisor
BQ2148LMODULE	TI	获取价格	Smart Battery Module with LEDs and Pack Supervisor
BQ2148MODULE	TI	获取价格	Smart Battery Module with LEDs and Pack Supervisor
BQ2150	TI	获取价格	Li-Ion Power Gauge⑩ Module
BQ2150B-	TI	获取价格	Li-Ion Power Gauge⑩ Module
BQ2150B-KT	TI	获取价格	Li-Ion Power Gauge⑩ Module
BQ2150B-XXX	TI	获取价格	Li-Ion Power Gauge⑩ Module
BQ2150H	TI	获取价格	Li-Ion Power Gauge⑩ Module

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