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Onsemi NCV78723 | Demoboard Image sensor demo
High Efficiency Buck Dual LED Driver with Integrated Current Sensing for Automotive Front Lighting
Details
| Topologie | Abwärtswandler |
| Eingangsspannung | 8-68 V |
| Schaltfrequenz | 8-12 kHz |
| Ausgang 1 | 60 V / 1.79 A |
| IC-Revision | 2 |
Beschreibung
The NCV78723 is a single-chip and high efficient Buck Dual LEDDriver designed for automotive front lighting applications like highbeam, low beam, DRL (daytime running light), turn indicator, foglight, static cornering, etc. The NCV78723 is in particular designed forhigh current LEDs and provides a complete solution to drive 2 LEDstrings of up-to 60 V. It includes 2 independent current regulators forthe LED strings and required diagnostic features for automotive frontlighting with a minimum of external components – the chip doesn’tneed any external sense resistor for the buck current regulation.The available output current and voltages can be customized perindividual LED string. When more than 2 LED channels are requiredon 1 module, then 2, 3 or more devices NCV78723 can be combined;also with NCV78713 device – the derivative of the NCV78723incorporating Buck Single LED Driver. Thanks to the SPIprogrammability, one single hardware configuration can supportvarious application platforms.
Eigenschaften
Single Chip
- Buck Topology
- 2 LED Strings up-to 60 V
- High Current Capability up to 1.6 A DC per Output
- High Overall Efficiency
- Minimum of External Components
- Integrated High Accuracy Current Sensing
- Integrated Switched Mode Buck Current Regulator
- Average Current Regulation through the LEDs
- High Operating Frequencies to Reduce Inductor Sizes
- Low EMC Emission for LED Switching and Dimming
- SPI Interface for Dynamic Control of System Parameters
- Fail Safe Operating (FSO) Mode, Stand-Alone Mode
Typische Anwendungen
- DRL
- Low Beam
- High Beam
- Turn Indicator
- Static Cornering
- Position or Park Light
- Fog
Weiterführende Informationen
Artikeldaten
Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | Pins | PCB/Kabel/Panel | Modularity | Typ | IR(A) | ISAT(A) | fres(MHz) | ISAT,10%(A) | ISAT,30%(A) | IR,40K(A) | IRP,40K(A) | RDC max.(mΩ) | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | DF(%) | Raster(mm) | Ø D(mm) | L(mm) | Verpackung | xPxC | Ausführung | Ports | Schirmung | Tab | EMI | Anwendungssystem | Arbeitsspannung(V (AC)) | Gender | Version | Vin | VOut1(V) | IOut1(A) | VOut2(V) | IOut2(A) | VOut3(V) | IOut3(A) | L(µH) | n | VT(V (AC)) | Bauform | Montageart | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TPC SMT-Speicherdrossel, 2, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-TPC SMT-Speicherdrossel | Pins2 | – | – | – | Nennstrom0.925 A | Sättigungsstrom0.7 A | Eigenresonanzfrequenz20 MHz | – | – | – | – | Gleichstromwiderstand185 mΩ | – | – | – | – | – | – | – | – | Länge4.8 mm | – | – | – | – | Schirmunggeschirmt | – | – | – | – | – | – | – | – | – | – | – | – | – | Induktivität22 µH | – | – | Bauform4828 | MontageartSMT | ||||
 | WE-PD Speicherdrossel, 2, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-PD Speicherdrossel | Pins2 | – | – | – | Nennstrom2.5 A | – | Eigenresonanzfrequenz4.3 MHz | Sättigungsstrom 13.1 A | Sättigungsstrom @ 30%3.8 A | Nennstrom2.5 A | Performance Nennstrom3.2 A | Gleichstromwiderstand110 mΩ | – | – | – | – | – | – | – | – | Länge12 mm | – | – | – | – | Schirmunggeschirmt | – | – | – | – | – | VersionGestanzt | – | – | – | – | – | – | – | Induktivität100 µH | – | – | Bauform1210 | MontageartSMT | ||||
 | WR-TBL Serie 3221 - 3.50 mm Horizontal PCB Header, 3, Stiftleiste | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | Pins3 | PCB/Kabel/PanelKabel | ModularityNein | TypStiftleiste | Nennstrom10.5 A | – | – | – | – | – | – | – | – | – | – | – | – | – | Raster3.5 mm | – | Länge11.9 mm | VerpackungKarton | – | – | – | – | – | – | – | Arbeitsspannung300 V (AC) | – | – | – | – | – | – | – | – | – | – | – | – | – | MontageartTHT | ||||
 | WR-TBL Serie 322 - 3.81 mm Horizontal PCB Header, 3, Stiftleiste | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-TBL Serie 322 - 3.81 mm Horizontal PCB Header | Pins3 | PCB/Kabel/PanelKabel | ModularityNein | TypStiftleiste | Nennstrom10.5 A | – | – | – | – | – | – | – | – | – | – | – | – | – | Raster3.81 mm | – | Länge12.62 mm | VerpackungKarton | – | – | – | – | – | – | – | Arbeitsspannung300 V (AC) | – | – | – | – | – | – | – | – | – | – | – | – | – | MontageartTHT | |||
| WR-TBL Serie 3221 - 3.50 mm Horizontal PCB Header, 4, Stiftleiste | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | Pins4 | PCB/Kabel/PanelKabel | ModularityNein | TypStiftleiste | Nennstrom10.5 A | – | – | – | – | – | – | – | – | – | – | – | – | – | Raster3.5 mm | – | Länge15.4 mm | VerpackungKarton | – | – | – | – | – | – | – | Arbeitsspannung300 V (AC) | – | – | – | – | – | – | – | – | – | – | – | – | – | MontageartTHT | ||||
| WR-TBL Serie 322 - 3.81 mm Horizontal PCB Header, 4, Stiftleiste | Simulation– | Downloads6 Dateien | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-TBL Serie 322 - 3.81 mm Horizontal PCB Header | Pins4 | PCB/Kabel/PanelKabel | ModularityNein | TypStiftleiste | Nennstrom10.5 A | – | – | – | – | – | – | – | – | – | – | – | – | – | Raster3.81 mm | – | Länge16.43 mm | VerpackungKarton | – | – | – | – | – | – | – | Arbeitsspannung300 V (AC) | – | – | – | – | – | – | – | – | – | – | – | – | – | MontageartTHT | ||
 | WR-DSUB PCB, 9, – | Simulation– | Downloads7 Dateien | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-DSUB PCB | Pins9 | PCB/Kabel/PanelPCB | – | TypAbgewinkelt | Nennstrom3 A | – | – | – | – | – | – | – | – | – | – | – | – | – | Raster2.77 mm | – | Länge30.81 mm | VerpackungTray | – | AusführungMit Sechskantschraube | – | – | – | – | – | Arbeitsspannung125 V (AC) | GenderWeiblich | VersionGestanzt | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | WE-PoE Übertrager für Power over Ethernet, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-PoE Übertrager für Power over Ethernet | – | – | – | – | – | Sättigungsstrom0.7 A | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Länge16.3 mm | – | – | – | – | – | – | – | – | – | – | VersionFlyback | Input Voltage 36 - 57 V (DC) | Ausgangsspannung 15 V | Ausgangsstrom 10.47 A | Ausgangsspannung 25 V | Ausgangsstrom 20.47 A | Ausgangsspannung 35 V | Ausgangsstrom 30.47 A | Induktivität210 µH | Übersetzungsverhältnis6:1:1:1:1.75 | Prüfspannung1500 V (AC) | BauformER14.5/6 | MontageartSMT | |||
 | WCAP-ATUL Aluminium-Elektrolytkondensatoren, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWCAP-ATUL Aluminium-Elektrolytkondensatoren | – | – | – | – | – | – | – | – | – | – | – | – | Kapazität68 µF | Nennspannung100 V (DC) | Endurance 7000 | Rippelstrom460 mA | Leckstrom68 µA | Verlustfaktor9 % | Raster5 mm | Durchmesser10 mm | Länge16 mm | VerpackungAmmopack | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||||
 | WR-MJ Cat 3 Modular Jacks – THT, –, – | Simulation– | Downloads7 Dateien | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWR-MJ Cat 3 Modular Jacks – THT | – | – | – | TypHorizontal | Nennstrom1.5 A | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | VerpackungTray | Anzahl der Pins (xPxC)8P8C | – | Ports1x1 | SchirmungKunststoff | Tab PositionOben | EMI FingerNein | AnwendungssystemCAT 3 | Arbeitsspannung120 V (AC) | – | – | – | – | – | – | – | – | – | – | – | – | – | MontageartTHT |