© 2007 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FAN4010 Rev. 1.0.5

February 2008

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

6-lead MicroPak™ MLP package

Applications

Battery chargers

Smart battery packs

DC motor control

Over-current monitor

Power management

Programmable current source

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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 PCs, 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.

Ordering Information

Part Number

Package

Operating Temperature Range

Packaging Method

FAN4010IL6X_F113

MicroPak™ MLP-6

-40°C to +85°C

Reel

All packages are lead free per JEDEC: J-STD-020B standard.

Moisture sensitivity level for all parts is MSL-1.

MicroPak™ is a trademark of Fairchild Semiconductor Corporation.

FAN4010

High-Side Current Sensor

Functional Block Diagram and Typical Circuit

Load

100

2

34

Load

1

GND

NC

6

5

NC

Figure 1. Functional Block Diagram and Typical Circuit