參數(shù)資料
型號(hào)： MAX472CSA+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 6/13頁(yè)
文件大?。?/td> 0K
描述： IC AMP CURR-SENSE HI-SIDE 8-SOIC
標(biāo)準(zhǔn)包裝： 100
放大器類型： 電流檢測(cè)
電路數(shù)： 1
電流 - 輸入偏壓： 20µA
電壓 - 輸入偏移： 120µV
電流 - 電源： 20µA
電流 - 輸出 / 通道： 1.5mA
電壓 - 電源，單路/雙路(±)： 3 V ~ 36 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOIC
包裝： 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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX472CSA+ 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
MAX472CSA+T 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
MAX472CSA-T 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
MAX472EPA 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
MAX472EPA+ 功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel
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