Datasheet > BQ2111L

BQ2111L

更新时间： 2024-11-08 22:39:39

品牌	Logo	应用领域
德州仪器 - TI		电池仪表
页数	文件大小	规格书
7页	744K
描述
NiCd Gas Gauge Module with LEDs for High Discharge Rates

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BQ2111L 数据手册

bq2111L

NiCd Gas Gauge Module with LEDs

for High Discharge Rates

Features

Complete bq2011 Gas Gauge solution for NiCd

packs in high discharge rate applications

Five surface-mounted LEDs to display

state-of-charge information

Battery state-of-charge monitoring for 4- to 12-cell

series applications

On-board regulator allows direct connection to the

battery

Battery information available over a single-wire

bidirectional serial port

Nominal capacity pre-configured

Compact size for battery pack integration

A module development kit is also available for the

bq2111L. The bq2111LB-KT includes one configured

module and the following:

General Description

The bq2111L Gas Gauge Module provides a complete

and compact solution for capacity monitoring of NiCd

battery packs in high discharge rate applications such

as power tools. Designed for battery pack integration,

the bq2111L incorporates a bq2011 Gas Gauge IC, five

surface-mounted LEDs, and the other discrete compo-

nents necessary to monitor and display accurately the

capacity of 4- to 12-series cells. The only external compo-

nent required is a low-value sense resistor connected be-

tween GND and PACK-. Contacts are also provided on

the bq2111L for direct connection to the battery stack

and the serial communications port (DQ). The battery

stack should be connected between BAT+ and GND.

Please refer to the bq2011 data sheet for the specifics on

the operation of the Gas Gauge.

1) An interface board that allows connection to the se-

rial port of an AT-compatible computer.

2) Menu-driven software with the bq2111L to display

charge/discharge activity and to allow user inter-

face to the bq2011 from any standard DOS PC.

3) Source code for the TSR.

Pin Descriptions

DQ/Serial communication port

BAT+/Battery positive/Pack positive

LBAT+/Four--cell power

PACK-/Pack negative

Unitrode configures the bq2111L based on the informa-

tion requested in Table 1. The configuration defines the

number of series cells and the nominal battery pack ca-

pacity. The bq211L module uses the absolute LED dis-

play to indicate battery capacity. In this mode, the

remaining capacity is represented as a percentage of the

programmed capacity.

GND/Ground

The bq2111L can operate directly from four series cells

within the pack using the LBAT+ supply input. For four

series cell applications or applications using the on-

board regulator, LBAT+ should be connected to BAT+.

Please refer to Figure 1 for module connection illustra-

tions.

7/96

12 3 4 5 6 7

中文翻译

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与BQ2111L相关器件

型号	品牌	获取价格	描述	数据表
BQ2111L-B	TI	获取价格	NiCd Gas Gauge Module with LEDs for High Discharge Rates
BQ2111L-BKT	TI	获取价格	NiCd Gas Gauge Module with LEDs for High Discharge Rates
BQ2111LB-KT	TI	获取价格	BQ2111LB-KT
BQ2111L-BXXX	TI	获取价格	NiCd Gas Gauge Module with LEDs for High Discharge Rates
BQ2111LB-XXX	TI	获取价格	NiCd Gas Gauge Module with LEDs for High Discharge Rates
BQ2111LMODULE	TI	获取价格	NiCd Gas Gauge Module with LEDs for High Discharge Rates
BQ2112	TI	获取价格	NiCd or NiMH Gas Gauge Module with Slow-Charge Control
BQ2112B	TI	获取价格	NiCd or NiMH Gas Gauge Module with Slow-Charge Control
BQ2112BKT	TI	获取价格	NiCd or NiMH Gas Gauge Module with Slow-Charge Control
BQ2112B-KT	TI	获取价格	BQ2112B-KT

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