FAN4010 High-Side Current Sensor

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FAN4010 High-Side Current Sensor

March 2007

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 2A typical offset current 3.5A quiescent current -0.2% accuracy SOT23-5 package 6-lead MicroPakTM future package option

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.

Applications
Battery chargers Smart battery packs DC motor control Over-current monitor Power management Programmable current source

Functional Block Diagram and Typical Circuit
VIN 100
1 2 3
NC Load

Load

RLoad
5

GND

RSENSE
VIN

IOUT

4

VIN

VOUT ROUT
IOUT

Figure 1. Functional Block Diagram and Typical Circuit

Ordering Information
Part Number
FAN4010IS5X FAN4010IL6X

Package
SOT23-5 MicroPak-6

Pb-Free
Yes Yes

Operating Temperature Range
-40 C to 85 C -40 C to 85 C

Packaging Method
Reel Reel

Moisture sensitivity level for all parts is MSL-1. MicroPakTM is a trademark of Fairchild Semiconductor Corporation. Future package option.

2007 Fairchild Semiconductor Corporation FAN4010 Rev. 1.0.1

www.fairchildsemi.com

FAN4010 Datasheet Fairchild Download PDF

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FAN4010 DATASHEET