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Texas Instruments DRV421 | Demoboard TIDA-00905
Fluxgate Magnetic Current Sensing Reference Design with High Linearity for 3–Phase Inverters
Overview
| Topology | Other Topology |
| IC revision | 001 |
Description
The TIDA-00905 reference design provides a reference solution for accuracy, high linearity and the galvanic isolation required for current measurement in three phase inverters using closed-loop fluxgate magnetic current sensors. It consists of magnetic core with compensation winding interfaced to driver IC with built-in fluxgate sensor. The design provides a pseudo differential output with an option to connect to 3.3V or 5V ADCs. Hardware circuit for over current and ground fault detection enables over-current protection of power switches.
Features
Remark: BOM is added with EVM board.Designed to accurately measure three phase inverter currents up to 50ARMS (nominal) and 150A (maximum)200 kHz bandwidth, closed-loop current sensing using magnetic module and fluxgate sensor (DRV421) to enable low propagation delay in current measurementCalibrated current measurement accuracy of ±1% (typical) across temperature range from -25°C to 85°CHardware based overload and ground fault detection enables fast response for protection of power switches
Typical applications
- Solar Inverters
- Three Phase UPS
- AC Inverter & VF Drives
More information
Products
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
 | 150060GS75000 | SPEC | |
 | 7461086 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | λDom typ. (nm) | Emitting Color | λPeak typ. (nm) | IV typ. (mcd) | VF typ. (V) | Chip Technology | 2θ50% typ. (°) | W (mm) | H (mm) | IR (A) | Ti | Tl (mm) | Pins | Samples |
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