CS-4173 high-side current module

Introduce

The CS-4173 is a Low-Cost, Compact Current-Sense module. It is detected by collecting the high-side current to achieve
the load current, the main chip is MAX4173 high-side current-sense amplifier. The MAX4173 high-side current-sense
amplifier features a 0 to +28V input common-mode range that is independent of supply voltage. This feature allows the
monitoring of current out of a battery in deep discharge and also enables high-side current sensing at voltages greater
than the supply voltage (VCC). High-side current monitoring is especially useful in battery-powered systems, since it
does not interfere with the ground path of the battery charger. For the module, Derivation of calculation function is:
Vout = Vsense * 50, I = Vsense/Rsense, so the end result is I = Vout/(50*Rsense) = Vout/5, the unit is A.

Features

Low-Cost, Compact Current-Sense Solution
Wide 0 to +28V Common-Mode Range (Independent of Supply Voltage)
+3V to +28V Operating Supply
±0.5% Full-Scale Accuracy
Wide 1.7MHz Bandwidth
420μA Supply Current

Application

1. Notebook Computers
2. Portable/Battery-Powered Systems
3. Smart Battery Packs/Chargers
4. Cell Phones
5. Power-Management Systems
6. General System/Board-Level Current Monitoring
7. PA Bias Control
8. Precision Current Sources