MAX4372T Datasheet | Maxim Integrated

Description The MAX4372 low-cost, precision, high-side currentsense amplifier is available in a tiny, space-saving SOT23-5 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 2cell 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 Low 1.5Ω Output Impedance o Three Gain Versions Available +20V/V (MAX4372T) +50V/V (MAX4372F) +100V/V (MAX4372H) o Wide 0 to +28V mon-Mode Range, Independent of Supply Voltage o Available in Space-Saving SOT23-5 Package Features o Low-Cost, pact Current-Sense Solution MAX4372T/F/H Ordering Information PART TEMP. RANGE PIN-PACKAGE TOP MARK ADIU - ADIV - MAX4372TEUK-T -40°C to +85°C 5 SOT23-5 MAX4372TESA -40°C to +85°C 8 SO MAX4372FEUK-T -40°C to +85°C 5 SOT23-5 MAX4372FESA -40°C to +85°C 8 SO Applications Power-Management Systems General-System/Board-Level Current Monitoring Notebook puters Portable/Battery-Powered Systems Smart-Battery Packs/Chargers Cell Phones Precision-Current Sources MAX4372HEUK...