MAX4372TEUK+T
Instrumentation, Op Amps, Buffer Amps
Technical Specifications
| Type | Description |
|---|---|
| Iq A | 3e-05 |
| Vcm - Common Mode Voltage | 0V~28V |
| Differential Voltage | +/-0.3V |
| Ib - Input Bias Current | 1uA |
| -3dB Bandwidth | 275kHz |
| Gain Db | 20.0 |
| Channels | 1.0 |
| Type | Description |
|---|---|
| Features | High-side detection;External shunt;Analog output interface |
| Voffset V | 300 V |
| Operating Temp | -40°C ~ +85°C |
| Common Mode Rejection Ratio | 85.0 |
| Single Supply | 2.7V~28V |
| Package / Case | SOT-23-5 |
Product Introduction
The MAX4372 low-cost, precision, high-side current-sense 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 computers, 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 common-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 compact current-sense solution. For higher bandwidth applications, refer to the MAX4173T/F/H data sheet.
Features
- Low-Cost, Compact Current-Sense Solution
- 30μA Supply Current
- 2.7V to 28V Operating Supply
- 0.18% Full-Scale Accuracy
- 0.3mV Input Offset Voltage
- Low 1.5Ω Output Impedance
- Three Gain Versions Available: 20V/V, 50V/V, 100V/V
- High Accuracy
- +2V to +28V Common-Mode Range, Functional Down to 0V, Independent of Supply Voltage
- Available in a Space-Saving 5-Pin SOT23 Package and 3x2 UCSP (1mm x 1.5mm) Package
Applications
- - Power-Management Systems - General-System/Board-Level Current Monitoring - Notebook Computers - Portable/Battery-Powered Systems - Smart-Battery Packs/Chargers - Cell Phones - Precision-Current Sources
Datasheet
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542339000 |
| USHTS | 8542330001 |
| TARIC | 8542339000 |
| Type | Details |
|---|---|
| CAHTS | 8542330000 |
| BRHTS | 85423390 |
| INHTS | 85423300 |
| MXHTS | 8542.33.99 |
Sourcing Information
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