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BQ014HSN

更新时间： 2024-02-19 11:50:59
品牌 Logo 应用领域
德州仪器 - TI 光电二极管
页数 文件大小 规格书
22页 185K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, 0.150 INCH, SOIC-16

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中文翻译

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BQ014HSN 技术参数

生命周期：Obsolete零件包装代码：SOIC
包装说明：SOP,针数：16
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.84
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封装形状：RECTANGULAR
封装形式：SMALL OUTLINE认证状态：Not Qualified
座面最大高度：1.75 mm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温度等级：COMMERCIAL
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL宽度：3.9 mm
Base Number Matches：1

BQ014HSN 数据手册

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Preliminary bq2014H  
Low-Cost NiCd/NiMH Gas Gauge IC  
bidirectional serial link to an exter-  
nal processor (common ground). The  
Features  
General Description  
5kb/s HDQ bus interface reduces  
communications overhead in the  
external microcontroller.  
➤ Accurate measurement of avail-  
able capacity in NiCd or NiMH  
batteries  
The bq2014H NiCd/NiMH Gas  
Gauge IC is intended for battery-  
pack or in-system installation to  
maintain an accurate record of  
available battery capacity. The IC  
monitors a voltage drop across a  
sense resistor connected in series  
between the negative battery termi-  
nal and ground to determine  
charge and discharge activity of  
the battery. Compensations for bat-  
tery temperature, self-discharge,  
and rate of discharge are applied to  
the charge counter to provide avail-  
able capacity information across a  
wide range of operating conditions.  
Battery capacity is automatically re-  
calibrated, or “learned,” in the  
course of a discharge cycle from full  
to empty.  
Internal registers include available  
capacity and energy, temperature,  
voltage and current, and battery  
status. The external processor may  
also overwrite some of the bq2014H  
gas gauge data registers.  
➤ Low-cost battery management so-  
lution for pack integration  
1
- As little as 2 square inch of  
PCB for complete circuit  
- Low operating current (120µA  
typical)  
The bq2014H can operate from the  
batteries in the pack. The REF out-  
put and an external transistor allow  
a simple, inexpensive voltage regu-  
lator to supply power to the circuit  
from the cells.  
- Less than 100nA of data  
retention current  
➤ High-speed (5kb/s) single-wire  
communication interface (HDQ  
bus) for critical battery  
parameters  
➤ Communication with an external  
charge controller such as the  
bq2004  
Nominal available capacity may be  
directly indicated using a five-  
segment LED display. The bq2014H  
also supports a simple single-line  
➤ Direct drive of remaining capacity  
LEDs  
➤ Automatic rate and temperature  
compensation of measurements  
➤ 16-pin narrow SOIC  
Pin Connections  
Pin Names  
LCOM  
LED common output  
VSS  
System ground  
SEG1/PROG1 LED segment 1/  
program 1 input  
SR  
Sense resistor input  
Display control input  
Battery sense input  
Register backup input  
LCOM  
SEG /PROG  
1
2
3
4
5
6
16  
15  
14  
13  
12  
11  
V
CC  
DISP  
SB  
REF  
NC  
1
1
SEG2/PROG2 LED segment 2/  
program 2 input  
SEG /PROG  
2
2
SEG /PROG  
HDQ  
RBI  
SB  
3
3
SEG3/PROG3 LED segment 3/  
program 3 input  
RBI  
HDQ  
SEG /PROG  
4
4
Serial communications  
input/output  
SEG /PROG  
SEG4/PROG4 LED segment 4/  
program 4 input  
5
5
DONE  
7
8
10  
9
DISP  
SR  
NC  
No connect  
SEG5/PROG5 LED segment 5/  
program 5 input  
V
SS  
REF  
VCC  
Voltage reference output  
Supply voltage  
16-Pin Narrow SOIC  
DONE  
Charge complete  
input  
PN20140H..eps  
SLUS030–JUNE 1999  
1
1234567...22

中文翻译

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