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BQ2118B-XXX PDF预览

BQ2118B-XXX

更新时间： 2024-09-14 22:39:39
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
5页 371K
描述
Power Minder⑩ Mini-Board

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中文翻译

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BQ2118B-XXX 数据手册

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Preliminary bq2118  
Power Minder™ Mini-Board  
Features  
ä
Complete and compact charge/discharge counter  
ä
Combines the bq2018, voltage regulator, sense  
resistor, and backup capacitor on a single PCB  
ä
ä
Communicates charge/discharge information to a  
host with a single-wire interface  
Designed for battery pack integration  
–
–
Less than 0.5 square inches  
Small size allows it to fit in the crevice formed  
by two adjacent cells  
–
Low operating current  
ä
Direct connections for the pack cells and  
communications port  
A module development kit is also available for the  
bq2118. The bq2118B-KT includes one configured mod-  
ule and the following:  
General Description  
The bq2118 Power Minder mini-board provides a com-  
plete and compact solution for charge and discharge  
counting of all types of battery chemistries, including  
NiCd, NiMH, or Li-Ion batteries. Designed for battery  
pack integration, the bq2118 incorporates a bq2018  
Power Minder IC, supply voltage regulator, sense resistor,  
and backup capacitor on a small circuit board. The mod-  
ule provides direct connections for the positive and nega-  
tive terminals of the series cells in the battery pack, and  
can fit in the crevice formed by two adjacent cells. The  
bq2118 allows a battery pack to be equipped easily with  
accurate charge/discharge counting electronics.  
1. An EV2200-18 interface board that allows connec-  
tion to the serial port of an AT-compatible com-  
puter.  
2. Menu-driven software to display charge/discharge  
activity and to allow user interface to the bq2118  
from any standard Windows 3.1 or 95 PC.  
Pin Descriptions  
Battery positive/pack positive  
BAT+  
Unitrode configures the bq2118 based on the informa-  
tion requested in Table 1. The configuration defines the  
battery chemistry, the number of series cells, and the  
charge/discharge current. Figure 1 shows how the mod-  
ule connects to the cells.  
Battery negative  
BAT-  
Communications port  
Pack negative  
HDQ  
PACK-  
WAKE  
RBI  
Wakeup output  
Register backup input  
bq2018 supply voltage  
V
CC  
5/99  
1
12345

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