FAN4010

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 ■ 2μA typical offset current ■ 3.5μA quiescent current ■ -0.2% accuracy ■ SOT23-5 package ■ 6-lead MicroPak™ 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 www.DataSheet4U.com Functional Block Diagram and Typical Circuit VIN 1007 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 Informat...