FAN4010 Datasheet, PDF (1/10 Pages) Fairchild Semiconductor – High-Side Current Sensor

FAN4010
High-Side Current Sensor
Features at +5V
■ Low cost, accurate, high-side current sensing
■ Output voltage scaling
■ Up to 2.5V sense voltage
■ 2V to 6V supply range
■ 2μA typical offset current
■ 3.5μA quiescent current
■ -0.2% accuracy
■ SOT23-5 package
■ 6-lead MicroPak™ future package option
Applications
■ Battery chargers
■ Smart battery packs
■ DC motor control
■ Over-current monitor
■ Power management
■ Programmable current source
March 2007
Description
The FAN4010 is a high-side current sense amplifier
designed for battery-powered systems. Using the
FAN4010 for high-side power-line monitoring does not
interfere with the battery charger’s ground path. The
FAN4010 is designed for portable PC’s, cellular phones,
and other portable systems where battery/DC power-line
monitoring is critical.
To provide a high level of flexibility, the FAN4010 functions
with an external sense resistor to set the range of load
current to be monitored. It has a current output that can
be converted to a ground-referred voltage with a single
resistor, accommodating a wide range of battery voltages
and currents. The FAN4010 features allow it to be used
for gas gauging as well as uni-directional or bi-directional
current monitoring.
Functional Block Diagram and Typical Circuit
VIN
1007
Load
V_OUT
1 NC
2 GND
3 IOUT
Load 5
V_IN 4
R_OUT
R_Load
R_SENSE
V_IN
I_OUT
Figure 1. Functional Block Diagram and Typical Circuit
Ordering Information
Part Number
Package
FAN4010IS5X
FAN4010IL6X*
SOT23-5
MicroPak-6
Moisture sensitivity level for all parts is MSL-1.
MicroPak™ is a trademark of Fairchild Semiconductor Corporation.
*Future package option.
Pb-Free
Yes
Yes
Operating
Temperature Range
-40°C to +85°C
-40°C to +85°C
Packaging
Method
Reel
Reel
© 2007 Fairchild Semiconductor Corporation
FAN4010 Rev. 1.0.1
www.fairchildsemi.com