MAX4080SAUA-T Maxim Integrated Products, MAX4080SAUA-T Datasheet

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MAX4080SAUA-T

Manufacturer Part Number
MAX4080SAUA-T
Description
Current & Power Monitors & Regulators 76V High-Side Crnt Sense Amp w/V Out
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX4080SAUA-T

Supply Voltage (max)
76 V
Supply Voltage (min)
4.5 V
Operating Temperature Range
+ 125 C
Mounting Style
SMD/SMT
Package / Case
uMAX-8
Supply Current (max)
0.075 mA
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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Manufacturer
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Price
Part Number:
MAX4080SAUA-T
Manufacturer:
MAXIM
Quantity:
10 000
The MAX4080/MAX4081 are high-side, current-sense
amplifiers with an input voltage range that extends from
4.5V to 76V making them ideal for telecom, automotive,
backplane, and other systems where high-voltage cur-
rent monitoring is critical. The MAX4080 is designed for
unidirectional current-sense applications and the
MAX4081 allows bidirectional current sensing. The
MAX4081 single output pin continuously monitors the
transition from charge to discharge and avoids the
need for a separate polarity output. The MAX4081
requires an external reference to set the zero-current
output level (V
resented by an output voltage from V
discharge current is given from V
For maximum versatility, the 76V input voltage range
applies independently to both supply voltage (V
and common-mode input voltage (V
current monitoring does not interfere with the ground
path of the load being measured, making the
MAX4080/MAX4081 particularly useful in a wide range
of high-voltage systems.
The combination of three gain versions (5V/V, 20V/V,
60V/V = F, T, S suffix) and a user-selectable, external
sense resistor sets the full-scale current reading and its
proportional output voltage. The MAX4080/MAX4081
offer a high level of integration, resulting in a simple,
accurate, and compact current-sense solution.
The MAX4080/MAX4081 operate from a 4.5V to 76V sin-
gle supply and draw only 75µA of supply current. These
devices are specified over the automotive operating
temperature range (-40°C to +125°C) and are available
in a space-saving 8-pin µMAX
19-2562; Rev 3; 5/10
µMAX is a registered trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
76V, High-Side, Current-Sense Amplifiers with
Automotive (12V, 24V, or 42V Batteries)
48V Telecom and Backplane Current
Measurement
Bidirectional Motor Control
Power-Management Systems
Avalanche Photodiode and PIN-Diode Current
Monitoring
General System/Board-Level Current Sensing
Precision High-Voltage Current Sources
SENSE
________________________________________________________________ Maxim Integrated Products
= 0V). The charging current is rep-
General Description
®
or SO package.
REF
Applications
to GND.
REF
RS+
to V
). High-side
CC
, while
CC
)
o Wide 4.5V to 76V Input Common-Mode Range
o Bidirectional or Unidirectional I
o Low-Cost, Compact, Current-Sense Solution
o Three Gain Versions Available
o ±0.1% Full-Scale Accuracy
o Low 100µV Input Offset Voltage
o Independent Operating Supply Voltage
o 75µA Supply Current (MAX4080)
o Reference Input for Bidirectional OUT (MAX4081)
o Available in a Space-Saving, 8-Pin µMAX Package
+ Denotes a lead(Pb)-free/RoHS-compliant package.
Selector Guide appears at end of data sheet.
MAX4080FAUA+
MAX4080FASA+
MAX4080TAUA+
MAX4080TASA+
MAX4080SAUA+
MAX4080SASA+
MAX4081FAUA+
MAX4081FASA+
MAX4081TAUA+
MAX4081TASA+
MAX4081SAUA+
MAX4081SASA+
TOP VIEW
GND
N.C.
RS+
V
CC
5V/V (MAX4080F/MAX4081F)
20V/V (MAX4080T/MAX4081T)
60V/V (MAX4080S/MAX4081S)
1
2
4
3
PART
+
μMAX/SO
MAX4080
Voltage Output
6
8
7
5
Ordering Information
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
TEMP RANGE
RS-
N.C.
N.C.
OUT
Pin Configurations
GND
N.C.
RS+
V
CC
1
2
4
3
+
SENSE
μMAX/SO
MAX4081
Features
PIN-PACKAGE
8 µMAX
8 SO
8 µMAX
8 SO
8 µMAX
8 SO
8 µMAX
8 SO
8 µMAX
8 SO
8 µMAX
8 SO
6
8
7
5
RS-
REF1A
REF1B
OUT
1

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MAX4080SAUA-T Summary of contents

Page 1

... CC o Reference Input for Bidirectional OUT (MAX4081) to GND. o Available in a Space-Saving, 8-Pin µMAX Package ) CC ). High-side RS+ PART MAX4080FAUA+ MAX4080FASA+ MAX4080TAUA+ MAX4080TASA+ MAX4080SAUA+ MAX4080SASA+ MAX4081FAUA+ MAX4081FASA+ MAX4081TAUA+ MAX4081TASA+ MAX4081SAUA+ MAX4081SASA+ + Denotes a lead(Pb)-free/RoHS-compliant package. Selector Guide appears at end of data sheet. TOP VIEW + RS+ ...

Page 2

High-Side, Current-Sense Amplifiers with Voltage Output ABSOLUTE MAXIMUM RATINGS V to GND ............................................................-0.3V to +80V CC RS+, RS- to GND....................................................-0.3V to +80V OUT to GND.............-0.3V to the lesser of +18V or (V REF1A, REF1B to GND (MAX4081 Only)....-0.3V to ...

Page 3

High-Side, Current-Sense Amplifiers with DC ELECTRICAL CHARACTERISTICS (continued 4.5V to 76V RS+ REF1A unless otherwise noted. Typical values are at T PARAMETER SYMBOL OUT Low Voltage REF1A = REF1B Input Voltage ...

Page 4

High-Side, Current-Sense Amplifiers with Voltage Output AC ELECTRICAL CHARACTERISTICS ( 4.5V to 76V RS+ REF1A unless otherwise noted. Typical values are MIN MAX ...

Page 5

High-Side, Current-Sense Amplifiers with ( 48V RS+ SENSE LOAD INPUT OFFSET VOLTAGE HISTOGRAM -125 -100 -75 -50 - 100 ...

Page 6

High-Side, Current-Sense Amplifiers with Voltage Output ( 48V RS+ SENSE LOAD MAX4080 SUPPLY CURRENT vs LOAD SENSE ...

Page 7

High-Side, Current-Sense Amplifiers with ( 48V RS+ SENSE LOAD MAX4081F SMALL-SIGNAL TRANSIENT RESPONSE MAX4080 toc19 INPUT 10mV/div OUTPUT 50mV/div 20μs/div MAX4080F LARGE-SIGNAL TRANSIENT RESPONSE MAX4080 toc22 INPUT 400mV/div OUTPUT 2V/div 20μs/div ...

Page 8

High-Side, Current-Sense Amplifiers with Voltage Output ( 48V RS+ SENSE LOAD V -TRANSIENT RESPONSE CC MAX4080 toc28 V = 20V RS 40V 20V STEP ...

Page 9

High-Side, Current-Sense Amplifiers with PIN NAME MAX4080 MAX4081 GND 5 5 OUT 8 8 RS- — 6 REF1B — 7 REF1A Detailed Description The MAX4080/MAX4081 unidirectional ...

Page 10

High-Side, Current-Sense Amplifiers with Voltage Output I 4.5V TO 76V LOAD V BATTERY R RS MAX4081T Figure 1. MAX4081T OUT Transfer Curve V SENSE I LOAD R SENSE RS+ RS MAX4080 A1 Q1 ...

Page 11

High-Side, Current-Sense Amplifiers with Table 1. Typical Component Values FULL-SCALE LOAD CURRENT-SENSE CURRENT, I (A) RESISTOR (mΩ) LOAD 0.500 0.125 0.050 5.000 1.250 0.500 50.000 12.500 5.000 FULL-SCALE LOAD CURRENT-SENSE CURRENT, I (A) RESISTOR (mΩ) LOAD 1.000 0.250 0.100 ...

Page 12

High-Side, Current-Sense Amplifiers with Voltage Output LOAD R SENSE RS+ RS MAX4081 GND Figure 4. MAX4081 Reference Inputs The full-scale output voltage is V OUT A , for the MAX4080 and V  (MAX) ...

Page 13

... REF1B SYSTEM POWER MANAGEMENT OUT AND CHARGER CIRCUITRY SERIAL INTERFACE μC Figure 5. MAX4081 Used In Smart-Battery Application Selector Guide PART GAIN (V/V) MAX4080FAUA 5 MAX4080FASA 5 MAX4080TAUA 20 MAX4080TASA 20 MAX4080SAUA 60 MAX4080SASA 60 MAX4081FAUA 5 MAX4081FASA 5 MAX4081TAUA 20 MAX4081TASA 20 MAX4081SAUA 60 MAX4081SASA 60 ______________________________________________________________________________________ V = 4.5V TO 76V CC 1.8V BATTERY PROCESS: Bipolar For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “ ...

Page 14

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2010 Maxim Integrated Products ...

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