TM
MP8100
Precision High-Side
Current-Sense Amplifier
The Future of Analog IC Technology
TM
INITIAL RELEASE – SPECIFICATIONS SUBJECT TO CHANGE
DESCRIPTION
The MP8100 is a low-cost, precision, high-side
current-sense amplifier. This device operates
from a single 2.5V to 18V supply and typically
consumes 17µA. It is ideal for today’s notebook
computers, cell phones and other systems
where battery/DC current monitoring is critical.
High-side current monitoring is especially useful
in battery-powered systems since it does not
interfere with the ground path of the battery
charger. The input common-mode range of
1.5V to 18V is independent of the supply
voltage and ensures that the current-sense
feedback remains viable even when connected
to a 2-cell battery pack in deep discharge.
FEATURES
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Low-Cost, Compact Current-Sense Solution
17µA Typical Supply Current
2.5V to 18V Operating Supply Voltage
1.5V to 18V Input Common Mode Range
1µA Typical Shutdown Current
250µV Input Offset Voltage
High Current Sensing Capability
Low 100mΩ Output Impedance (Optional)
Available in an 8-Pin SOIC Package
Portable PCs
PDA’s
Smart Battery Packs
Cell Phones
Portable Test/Measurement Systems
Battery-Operated Systems
Energy Management Systems
APPLICATIONS
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
TYPICAL APPLICATION
V
IN
LOAD
3
7
1
RG1
VCC
RG2
6
+
--
MP8100
OUT2
OUT1
SHDN
GND
8
5
SHUTDOWN
VOLTAGE
+
--
4
C
OUT1
Opt.
C
OUT2
100pF
R
OUT2
Opt.
MP8100_TAC_S01
MP8100 Rev. 0.91
4/14/2006
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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