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| 型号： | MAX472CSA |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/13页 |
| 文件大小： | 0K |
| 描述： | IC AMP CURR-SENSE HI-SIDE 8-SOIC |
| 标准包装： | 100 |
| 放大器类型： | 电流检测 |
| 电路数： | 1 |
| 电流 - 输入偏压： | 20µA |
| 电压 - 输入偏移： | 120µV |
| 电流 - 电源： | 20µA |
| 电流 - 输出 / 通道： | 1.5mA |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 36 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
_______________General Description
The MAX471/MAX472 are complete, bidirectional, high-
side current-sense amplifiers for portable PCs, tele-
phones, and other systems where battery/DC
power-line monitoring is critical. High-side power-line
monitoring is especially useful in battery-powered sys-
tems, since it does not interfere with the ground paths
of the battery chargers or monitors often found in
“smart” batteries.
The MAX471 has an internal 35m
current-sense resis-
tor and measures battery currents up to ±3A. For appli-
cations requiring higher current or increased flexibility,
the MAX472 functions with external sense and gain-set-
ting resistors. Both devices have a current output that
can be converted to a ground-referred voltage with a
single resistor, allowing a wide range of battery volt-
ages and currents.
An open-collector SIGN output indicates current-flow
direction, so the user can monitor whether a battery is
being charged or discharged. Both devices operate
from 3V to 36V, draw less than 100A over tempera-
ture, and include a 18A max shutdown mode.
________________________Applications
Portable PCs:
Notebooks/Subnotebooks/Palmtops
Smart Battery Packs
Cellular Phones
Portable Phones
Portable Test/Measurement Systems
Battery-Operated Systems
Energy Management Systems
____________________________Features
o Complete High-Side Current Sensing
o Precision Internal Sense Resistor (MAX471)
o 2% Accuracy Over Temperature
o Monitors Both Charge and Discharge
o 3A Sense Capability with Internal Sense Resistor
(MAX471)
o Higher Current-Sense Capability with External
Sense Resistor (MAX472)
o 100A Max Supply Current
o 18A Max Shutdown Mode
o 3V to 36V Supply Operation
o 8-Pin DIP/SO Packages
______________Ordering Information
MAX471/MAX472
Precision, High-Side
Current-Sense Amplifiers
________________________________________________________________
Maxim Integrated Products
1
1
2
3
4
8
7
6
5
OUT
RS-
SIGN
GND
RS+
SHDN
MAX471
DIP/SO
TOP VIEW
_________________Pin Configurations
MAX471
RS+
RS-
SIGN
OUT
GND
SHDN
3V
TO
36V
100k
ILOAD
2000
2k
ILOAD TO
LOAD or CHARGER
LOGIC
SUPPLY
DISCHARGE/CHARGE
VOUT (1V/A)
__________Typical Operating Circuit
19-0335; Rev 2; 12/96
PART
MAX471CPA
MAX471CSA
MAX471EPA
-40°C to +85°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
8 Plastic DIP
8 SO
8 Plastic DIP
MAX471ESA
-40°C to +85°C
8 SO
MAX472CPA
0°C to +70°C
8 Plastic DIP
MAX472CSA
0°C to +70°C
8 SO
MAX472EPA
-40°C to +85°C
8 Plastic DIP
MAX472ESA
-40°C to +85°C
8 SO
MAX472 Pin Configuration continued on last page.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
相关PDF资料 |
PDF描述 |
|---|---|
| MAX471ESA | IC AMP CURR-SENSE HI-SIDE 8-SOIC |
| MAX471CPA | IC AMP CURR-SENSE HI-SIDE 8-DIP |
| MAX4387EUA | IC BUFF/AMP ADC 250MHZ 8-UMAX |
| MAX4387ESA | IC BUFF/AMP ADC 250MHZ 8-SOIC |
| MAX437ESA | IC OPAMP HIGH-PREC LN 8-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX472CSA+ | 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel |
| MAX472CSA+T | 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel |
| MAX472CSA-T | 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel |
| MAX472EPA | 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel |
| MAX472EPA+ | 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel |
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