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IC-Hersteller (103)

Texas Instruments DRV421 | Demoboard TIDA-00905

Fluxgate Magnetic Current Sensing Reference Design with High Linearity for 3–Phase Inverters

Details

TopologieSonstige Topologie
IC-Revision001

Beschreibung

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.

Eigenschaften

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

Typische Anwendungen

  • Solar Inverters
  • Three Phase UPS
  • AC Inverter & VF Drives

Weiterführende Informationen

Artikeldaten

Artikel Nr.
Daten­blatt
Simu­lation
Downloads
Status
Produktserie
λDom typ.(nm)
Emittierte Farbe
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chiptechnologie
50% typ.(°)
B(mm)
H(mm)
IR 1(A)
Ti
Tl(mm)
Pins
Muster
WL-SMCW SMT Mono-color Chip LED Waterclear, 525 nm, Grün
Simu­lation
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
dominante Wellenlänge [typ.]525 nm
Emittierte FarbeGrün 
Spitzen-Wellenlänge [typ.]515 nm
Lichtstärke [typ.]430 mcd
Durchlassspannung [typ.]3.2 V
ChiptechnologieInGaN 
Abstrahlwinkel Phi 0° [typ.]140 °
Breite0.8 mm
Höhe0.7 mm
WP-BUCF REDCUBE PRESS-FIT with internal thread, circumference, –, –
Simu­lation
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
Breite9 mm
Höhe6 mm
Nennstrom [1]175 A
InnengewindeM4 
Gewindelänge6 mm
Pins12