Datasheet MAX4073T, MAX4073F, MAX4073H (Maxim)
| 制造商 | Maxim |
| 描述 | Low-Cost, SC70, Voltage-Output, High-Side Current-Sense Amplifier |
| 页数 / 页 | 12 / 1 — MAX4073T/F/H. Low-Cost, SC70, Voltage-Output,. High-Side Current-Sense … |
| 修订版 | 1 |
| 文件格式/大小 | PDF / 370 Kb |
| 文件语言 | 英语 |
MAX4073T/F/H. Low-Cost, SC70, Voltage-Output,. High-Side Current-Sense Amplifier. General Description. Features
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MAX4073T/F/H Low-Cost, SC70, Voltage-Output, High-Side Current-Sense Amplifier General Description Features
The MAX4073 low-cost, high-side current-sense ampli- ♦
Low-Cost, Compact, Current-Sense Solution
fier features a voltage output that eliminates the need for gain-setting resistors making it ideal for cell phones, ♦
Three Gain Versions Available
notebook computers, PDAs, and other systems where
+20V/V (MAX4073T)
current monitoring is crucial. High-side current moni-
+50V/V (MAX4073F)
toring does not interfere with the ground path of the
+100V/V (MAX4073H)
battery charger making the MAX4073 particularly useful in battery-powered systems. The input common-mode ♦
±1.0% Full-Scale Accuracy
range of +2V to +28V is independent of the supply volt- ♦
500µA Supply Current
age. The MAX4073’s wide 1.8MHz bandwidth makes it suitable for use inside battery-charger control loops. ♦
Wide 1.8MHz Bandwidth
The combination of three gain versions and a selec- ♦
+3V to +28V Operating Supply
table external-sense resistor sets the full-scale current ♦
Wide +2V to +28V Common-Mode Range
reading. The MAX4073 offers a high level of integra-
Independent of Supply Voltage
tion, resulting in a simple and compact current-sense solution. ♦
Automotive Temperature Range (-40°C to +125°C)
The MAX4073 operates from a +3V to +28V single sup- ♦
Available in Space-Saving 5-Pin SC70 Package
ply and draws only 0.5mA of supply current. This device is specified over the automotive operating tem-
Typical Operating Circuit
perature range (-40°C to +125°C) and is available in a space-saving 5-pin SC70 package (half the size of the SOT23). I For a similar device in a 6-pin SOT23 with a wider com- LOAD VSENSE VIN LOW-COST +2V TO +28V mon-mode voltage range (0 to +28V), see the SWITCHING REGULATOR R MAX4173 data sheet. SENSE +3V TO +28V RS+ RS-
Applications
VCC Cell Phones 0.1µF MAX4073T/F/H Notebook Computers Portable/Battery-Powered Systems LOAD/ Smart Battery Packs/Chargers OUT BATTERY PDAs GND Power Management Systems PA Bias Control General System/Board-Level Current Monitoring
Pin Configurations appear at end of data sheet.
Precision Current Sources
Ordering Information PART TEMP. RANGE PIN-PACKAGE GAIN (V/V) TOP MARK MAX4073T
AXK+T -40°C to +125°C 5 SC70 20 ACM MAX4073TAUT+T -40°C to +125°C 6 SOT23 20 AAUE
MAX4073F
AXK+T -40°C to +125°C 5 SC70 50 ACN MAX4073FAUT+T -40°C to +125°C 6 SOT23 50 AAUF
MAX4073H
AXK+T -40°C to +125°C 5 SC70 100 ACO MAX4073HAUT+T -40°C to +125°C 6 SOT23 100 AAUG +Denotes lead(Pb)-free/RoHS-compliant package.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-2048; Rev 1; 8/12
The MAX4073 low-cost, high-side current-sense ampli- ♦
Low-Cost, Compact, Current-Sense Solution
fier features a voltage output that eliminates the need for gain-setting resistors making it ideal for cell phones, ♦
Three Gain Versions Available
notebook computers, PDAs, and other systems where
+20V/V (MAX4073T)
current monitoring is crucial. High-side current moni-
+50V/V (MAX4073F)
toring does not interfere with the ground path of the
+100V/V (MAX4073H)
battery charger making the MAX4073 particularly useful in battery-powered systems. The input common-mode ♦
±1.0% Full-Scale Accuracy
range of +2V to +28V is independent of the supply volt- ♦
500µA Supply Current
age. The MAX4073’s wide 1.8MHz bandwidth makes it suitable for use inside battery-charger control loops. ♦
Wide 1.8MHz Bandwidth
The combination of three gain versions and a selec- ♦
+3V to +28V Operating Supply
table external-sense resistor sets the full-scale current ♦
Wide +2V to +28V Common-Mode Range
reading. The MAX4073 offers a high level of integra-
Independent of Supply Voltage
tion, resulting in a simple and compact current-sense solution. ♦
Automotive Temperature Range (-40°C to +125°C)
The MAX4073 operates from a +3V to +28V single sup- ♦
Available in Space-Saving 5-Pin SC70 Package
ply and draws only 0.5mA of supply current. This device is specified over the automotive operating tem-
Typical Operating Circuit
perature range (-40°C to +125°C) and is available in a space-saving 5-pin SC70 package (half the size of the SOT23). I For a similar device in a 6-pin SOT23 with a wider com- LOAD VSENSE VIN LOW-COST +2V TO +28V mon-mode voltage range (0 to +28V), see the SWITCHING REGULATOR R MAX4173 data sheet. SENSE +3V TO +28V RS+ RS-
Applications
VCC Cell Phones 0.1µF MAX4073T/F/H Notebook Computers Portable/Battery-Powered Systems LOAD/ Smart Battery Packs/Chargers OUT BATTERY PDAs GND Power Management Systems PA Bias Control General System/Board-Level Current Monitoring
Pin Configurations appear at end of data sheet.
Precision Current Sources
Ordering Information PART TEMP. RANGE PIN-PACKAGE GAIN (V/V) TOP MARK MAX4073T
AXK+T -40°C to +125°C 5 SC70 20 ACM MAX4073TAUT+T -40°C to +125°C 6 SOT23 20 AAUE
MAX4073F
AXK+T -40°C to +125°C 5 SC70 50 ACN MAX4073FAUT+T -40°C to +125°C 6 SOT23 50 AAUF
MAX4073H
AXK+T -40°C to +125°C 5 SC70 100 ACO MAX4073HAUT+T -40°C to +125°C 6 SOT23 100 AAUG +Denotes lead(Pb)-free/RoHS-compliant package.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-2048; Rev 1; 8/12