MAX4372H Datasheet | Maxim Integrated

Description The MAX4372 low-cost, precision, high-side currentsense amplifier is available in a tiny, space-saving SOT23-5-pin package. Offered in three gain versions (T = 20V/V, F = 50V/V, and H = 100V/V), this device operates from a single 2.7V to 28V supply and consumes only 30µA. It features a voltage output that eliminates the need for gain-setting resistors and is ideal for today’s notebook puters, cell phones, and other systems where battery/DC current monitoring is critical. High-side current monitoring is especially useful in battery-powered systems since it does not interfere with the ground path of the battery charger. The input mon-mode range of 0 to 28V is independent of the supply voltage and ensures that the current-sense feedback remains viable even when connected to a 2-cell battery pack in deep discharge. The user can set the full-scale current reading by choosing the device (T, F, or H) with the desired voltage gain and selecting the appropriate external sense resistor. This capability offers a high level of integration and flexibility, resulting in a simple and pact current-sense solution. For higher bandwidth applications, refer to the MAX4173T/F/H data sheet. o 30µA Supply Current o 2.7V to 28V Operating Supply o 0.18% Full-Scale Accuracy o 0.3m V Input Offset Voltage o Low 1.5Ω Output Impedance o Three Gain Versions Available 20V/V (MAX4372T) 50V/V (MAX4372F) 100V/V (MAX4372H) o High Accuracy +2V to +28V mon-Mode Range, Functional Down to 0V, Independent of Supply Voltage o Available in a Space-Saving 5-Pin SOT23 Package and 3 x 2 UCSP™ (1mm x 1.5mm) Package Features o Low-Cost, pact Current-Sense Solution MAX4372T/F/H Ordering Information Information Ordering PART TEMP RANGE PIN-PACKAGE -40°C +85°C -40 °C to +85 °C -40°C to +85°C -40°C +85°C -40°C +85°C -40 °C to +85 °C 5 SOT23-5 8 SO 3 x 2 UCSP TOP MARK ADIU - ACX Applications Power-Management Systems General-System/Board-Level Current Monitoring Notebook puters .. MAX4372TEUK-T...