The MAX4172 is a low-cost, precision, high-side current-sense amplifier for portable PCs, telephones, 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 battery charger’s ground path. Wide bandwidth and ground-sensing capability make the MAX4172 suitable for closed-loop battery- charger and general-purpose current-source applications. The 0V and 32V input common-mode range is independent of the supply voltage, which ensures that current-sense feedback remains viable, even when connected to a battery in deep discharge.
The MAX4172ExA is described as a low-cost, precision, high-side current-sense amplifier designed for portable PCs, telephones, and systems requiring battery or DC power-line monitoring. It features a wide input common-mode range of 0V to 32V that remains independent of the supply voltage, ensuring operation even during deep discharge conditions.
| Supply Voltage Range | 3.0V to 32V |
|---|---|
| Input Common-Mode Range | 0V to 32V |
| Storage Temperature | -65°C to +150°C |
It is a low-cost, precision, high-side current-sense amplifier intended for portable PCs, telephones, and other systems where battery or DC power-line monitoring is critical.
The MAX4172 operates with a 3.0V to 32V supply voltage.
The device can be stored at temperatures ranging from -65°C to +150°C.