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BQ2011SN PDF预览

BQ2011SN

更新时间： 2024-10-28 04:34:39
品牌 Logo 应用领域
德州仪器 - TI 电源电路电源管理电路光电二极管仪表
页数 文件大小 规格书
21页 195K
描述
Gas Gauge IC for High Discharge Rates

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中文翻译

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BQ2011SN 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：SOIC包装说明：0.150 INCH, SOIC-16
针数：16Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.72Is Samacsys：N
可调阈值：NO模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：R-PDSO-G16长度：9.9 mm
信道数量：1功能数量：1
端子数量：16最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP16,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：NOT SPECIFIED电源：3/6.5 V
认证状态：Not Qualified座面最大高度：1.75 mm
子类别：Power Management Circuits最大供电电流 (Isup)：0.25 mA
最大供电电压 (Vsup)：6.5 V最小供电电压 (Vsup)：3 V
标称供电电压 (Vsup)：4.25 V表面贴装：YES
技术：CMOS温度等级：COMMERCIAL
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3.9 mmBase Number Matches：1

BQ2011SN 数据手册

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bq2011  
Gas Gauge IC for  
High Discharge Rates  
Nominal available charge may be di-  
Features  
➤ Conservative and repeatable  
measurement of available charge  
in rechargeable batteries  
General Description  
rectly indicated using a five-seg-  
ment LED display. These segments  
are used to indicate graphically the  
nominal available charge.  
The bq2011 Gas Gauge IC is intended  
for battery-pack installation to main-  
tain an accurate record of available  
battery charge. The IC monitors a  
voltage drop across a sense resistor  
connected in series between the nega-  
tive battery terminal and ground to  
determine charge and discharge ac-  
tivity of the battery. The bq2011 is  
designed for systems such as power  
tools with very high discharge rates.  
➤ Designed for portable equipment  
such as power tools with high dis-  
charge rates  
The bq2011 supports a simple single-  
line bidirectional serial link to an exter-  
nal processor (common ground). The  
bq2011 outputs battery information in  
response to external commands over the  
serial link. To support subassembly  
testing, the outputs may also be con-  
trolled by command. The external proc-  
essor may also overwrite some of the  
bq2011 gas gauge data registers.  
➤ 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 and rate of  
charge or discharge are applied to  
the charge, discharge, and  
selfdischarge calculations to provide  
available charge information across  
a wide range of operating conditions.  
Initial battery capacity is set using  
the PFC and MODE pins. Actual  
battery capacity is automatically  
“learned” in the course of a dis-  
charge cycle from full to empty and  
may be displayed depending on the  
display mode.  
- Small size enables imple-  
1
The bq2011 may operate directly  
from four cells. With the REF output  
and an external transistor, a simple,  
inexpensive regulator can be built to  
provide VCC from a greater number  
of cells.  
mentations in as little as  
square inch of PCB  
2
➤ Direct drive of LEDs for capacity  
display  
➤ Self-discharge compensation us-  
ing internal temperature sensor  
Internal registers include available  
charge, temperature, capacity, battery  
ID, and battery status.  
➤ Simple single-wire serial commu-  
nications port for subassembly  
testing  
➤ 16-pin narrow SOIC  
Pin Connections  
Pin Names  
MODE  
SEG1  
SEG2  
SEG3  
SEG4  
SEG5  
PFC  
Display mode output  
LED segment 1  
LED segment 2  
LED segment 3  
LED segment 4  
LED segment 5  
NC  
DQ  
No connect  
MODE  
1
2
3
4
5
6
16  
15  
14  
13  
12  
11  
V
CC  
Serial communications  
input/output  
SEG  
SEG  
SEG  
SEG  
SEG  
REF  
NC  
DQ  
RBI  
SB  
1
2
3
4
5
RBI  
SB  
Register backup input  
Battery sense input  
Display control input  
Sense resistor input  
3.0–6.5V  
DISP  
SR  
Programmed full count  
selection input  
PFC  
7
8
10  
9
DISP  
SR  
VCC  
VSS  
V
SS  
REF  
Voltage reference output  
Negative battery terminal  
16-Pin Narrow SOIC  
PN201101.eps  
2/96 E  
1
1234567...21

中文翻译

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