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LM3824MM-2.0/NOPB PDF预览

LM3824MM-2.0/NOPB

更新时间: 2024-09-18 19:42:47
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
12页 258K
描述
SPECIALTY ANALOG CIRCUIT, PDSO8

LM3824MM-2.0/NOPB 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:TSSOP, TSSOP8,.19Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:5.84
模拟集成电路 - 其他类型:ANALOG CIRCUITJESD-30 代码:S-PDSO-G8
JESD-609代码:e3长度:3 mm
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP8,.19
封装形状:SQUARE封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260电源:2/5.25 V
认证状态:Not Qualified座面最大高度:1.1 mm
子类别:Power Management Circuits最大供电电流 (Isup):0.15 mA
最大供电电压 (Vsup):5.25 V最小供电电压 (Vsup):2 V
标称供电电压 (Vsup):3.6 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:0.65 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 mm
Base Number Matches:1

LM3824MM-2.0/NOPB 数据手册

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July 2000  
LM3824  
Precision Current Gauge IC with Internal Zero Ohm  
Sense Element and PWM Output  
General Description  
The LM3824 Current Gauge provides easy to use precision  
current measurement with virtually zero insertion loss (typi-  
cally 0.003). The LM3824 is used for high-side sensing.  
Key Specifications  
n Ultra low insertion loss (0.003)  
n 2V to 5.5V supply range  
±
n
3% accuracy at room temperature for the 1A device  
(includes accuracy of the internal sense element)  
n Low quiescent current in shutdown mode  
(typically 1.8 µA)  
n 6 msec sampling interval  
n In MSOP-8 Package  
A Delta Sigma analog to digital converter is incorporated to  
precisely measure the current and to provide a current aver-  
aging function. Current is averaged over 6 msec time peri-  
ods in order to provide immunity to current spikes. The ICs  
have a pulse-width modulated (PWM) output which indicates  
the current magnitude and direction. The shutdown pin can  
be used to inhibit false triggering during start-up, or to enter  
a low quiescent current mode.  
Features  
n No external sense element required  
n PWM output indicates the current magnitude and  
direction  
n PWM output is easily interfaced with microprocessors  
and controllers  
The LM3824 is factory-set in two different current options.  
The sense range is −1.0A to +1.0A or −2.0A to +2.0A. The  
sampling interval for this part is 6ms. If a more precise mea-  
surement is required, please refer to LM3822 datasheet.  
n Precision ∆Σ current-sense technique  
n Low temperature sensitivity  
n Internal filtering rejects false trips  
n Internal Power-On-Reset (POR)  
n DC Offset is less than 8 mA for 1A part  
Applications  
n Battery charge/discharge gauge  
n Motion control diagnostics  
n Power supply load monitoring and management  
n Resettable smart fuse  
Connection Diagram  
DS200007-1  
Top View  
LM3824 for High-Side Sensing  
© 2000 National Semiconductor Corporation  
DS200007  
www.national.com  

LM3824MM-2.0/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM3822MM-2.0/NOPB TI

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SPECIALTY ANALOG CIRCUIT, PDSO8, MSOP-8

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