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AD7280BCPZ

更新时间： 2024-02-12 19:46:55
品牌 Logo 应用领域
亚德诺 - ADI 电池监控
页数 文件大小 规格书
33页 331K
描述
IC 6-CHANNEL POWER SUPPLY SUPPORT CKT, QCC48, LEAD FREE, MO-220VKKD-2, LFCSP-48, Power Management Circuit

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AD7280BCPZ 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：QFP包装说明：LEAD FREE, MS-026BBC, LQFP-48
针数：48Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.82可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：S-PQFP-G48
长度：9 mm信道数量：6
功能数量：1端子数量：48
最高工作温度：105 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：LFQFP
封装等效代码：QFP48,.35SQ,20封装形状：SQUARE
封装形式：FLATPACK, LOW PROFILE, FINE PITCH电源：7.5/30 V
认证状态：Not Qualified座面最大高度：1.6 mm
子类别：Power Management Circuits最大供电电流 (Isup)：10 mA
最大供电电压 (Vsup)：30 V最小供电电压 (Vsup)：7.5 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL端子形式：GULL WING
端子节距：0.5 mm端子位置：QUAD
宽度：9 mmBase Number Matches：1

AD7280BCPZ 数据手册

 浏览型号AD7280BCPZ的Datasheet PDF文件第2页浏览型号AD7280BCPZ的Datasheet PDF文件第3页浏览型号AD7280BCPZ的Datasheet PDF文件第4页浏览型号AD7280BCPZ的Datasheet PDF文件第5页浏览型号AD7280BCPZ的Datasheet PDF文件第6页浏览型号AD7280BCPZ的Datasheet PDF文件第7页 
Lithium Ion Battery  
Monitoring System  
AD7280  
Preliminary Technical Data  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
12-bit ADC, 1us per channel conversion time  
6 Analog Input Channels, CM range 0.5V to 27.5V  
6 Temperature Measurements Inputs.  
On Chip Voltage Regulator  
Cell Balancing Interface  
Daisy Chain Interface  
V
DD  
CB1  
CB6  
AD7280  
DAIS Y CHAIN  
INTER FACE  
CEL L  
BALANCING  
INTER FACE  
Vin(6)  
Vin(5)  
Vin(4)  
Vin(3)  
Vin(2)  
Vin(1)  
Vin(0)  
REGUL ATOR  
V
REG  
DGND  
3 ppm Reference  
Low Quiescent Current  
High Input Impedance  
Serial Interface with Alert Function  
1 SPI interface for up to 300 channels  
On Chip Registers for Channel Sequencing  
VDD Operating Range 7.5V to 30V  
Temperature Range -40 oC to 105oC  
48 lead LQFP and LFCSP Packages  
DVCC  
AVCC  
MUX  
+
-
+
12 BIT ADC  
VDRIVE  
-
VT(6)  
VT(5)  
VT(4)  
VT(3)  
VT(2)  
VT(1)  
CONTRO L LOGIC  
& SELF TEST  
CLOCK  
SCLK  
SDIN  
SDOUT  
ALERT  
CS  
VTTERM  
LIMIT REG  
SQN LOGIC  
DATA MEMO RY  
SPI INTER FACE  
V
REF  
2.5V  
REF  
CREF  
PD  
REFGND  
CNVST  
MASTER  
APPLICATIONS  
Figure 1  
Lithium Ion Battery Monitoring  
Nickel Metal Hydride Battery Monitoring  
GENERAL DESCRIPTION  
The AD72801 contains all the functions required for general  
purpose monitoring of stacked Lithium Ion batteries as used in  
Hybrid Electric Vehicles. The part has multiplexed analog input  
and temperature measurement channels for up to six cells of  
battery management. An internal 3-ppm reference is provided  
to drive the ADC. The ADC resolution is 12 bits with a 1 Msps  
throughput rate offering a 1µs conversion time.  
The AD7280 also includes an Alert function which generates an  
interrupt output signal if the cell voltages exceed an upper or  
lower limit defined by the user. The AD7280 has balancing  
interface outputs designed to control external FET transistors to  
allow discharging of individual cells.  
The AD7280 includes a Built In Self Test feature which  
internally applies a known voltage to the ADC inputs.  
The AD7280 operates from just one VDD supply which has a  
range of 7.5V to 30V (with an absolute max rating of 33V). The  
part provides 6 pseudo differential analog input channels to  
accommodate large common mode signals across the full VDD  
range. Each channel allows an input signal range, Vin(+) --  
Vin(-), of 0V to 5V. The input pins assume a series stack of 6  
cells. In addition the part can accommodate 6 external sensors  
for temperature measurement.  
There is a daisy chain interface which allows up to 50 parts to  
be stacked without the need for individual device isolation.  
The AD7280 requires only one supply pin which takes 7mA  
under normal operation, while converting at 1 Msps.  
All this functionality is provided in a 48 pin LQFP or 48 pin  
LFCSP package operating over a temperature range of −40°C to  
+105°C.  
The AD7280 includes on chip registers which allow a sequence  
of channel measurements to be programmed to suit the  
applications requirements.  
1 Patents Pending  
Rev. PrD  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rights ofthird parties that may result fromits use. Specifications subject to change without notice. No  
licenseis granted byimplication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.461.3113  
www.analog.com  
©2008 Analog Devices, Inc. All rights reserved.  
1234567...33

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