描述 Description

General Description
The MAX471/MAX472 are complete, bidirectional, high side current-sense amplifiers for portable PCs, tele
phones, and other systems where battery/DC power-line monitoring is critical. High-side power-line? monitoring is especially useful in battery-powered systems, since it does not interfere with the ground paths of the battery chargers or monitors often found in “smart” batteries.

特性 Features

?Complete High-Side Current Sensing
?Precision Internal Sense Resistor (MAX471)
?2% Accuracy Over Temperature
?Monitors Both Charge and Discharge
?3A Sense Capability with Internal Sense Resistor (MAX471)
?Higher Current-Sense Capability with External Sense Resistor (MAX472)
?100μA Max Supply Current
?18μA Max Shutdown Mode
?3V to 36V Supply Operation
?8-Pin DIP/SO PackagesApplications
Portable PCs: Notebooks/Subnotebooks/Palmtops
Smart Battery Packs
Cellular Phones
Portable Phones
Portable Test/Measurement Systems
Battery-Operated Systems
Energy Management Systems