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Texas Instruments SN6505 | Demoboard TIDA-020031
Automotive 400-V battery to 12-V,3.6-kW DC/DC converter reference design
Details
| Topologie | Gegentaktwandler (Vollbrücken) |
| Eingangsspannung | 2.25-5.5 V |
| Ausgang 1 | 16 V / 1 A |
Beschreibung
This reference design is a 3.6-kW, automotive 400-V to 12-V unidirectional converter which converts the 200-V to 450-V DC input to 12-V,300-A maximum output. Circuit breaker is applied for overcurrent and overvoltage protection. The converter is designed with SiC MOSFETs on the high voltage side and driven by 5.7-kVRMS,reinforced isolated dual-channel gate drivers. The enhanced phase-shifted full-bridge controller implements programmable delays which ensure zero voltage switching (ZVS) over a wide range of operating conditions. It offers multiple lightload management features including burst mode and dynamic SR on and off control when transitioning in and out of discontinuous current mode (DCM) operation. The output implements synchronous rectification,which enables fast transient response and a high-loop bandwidth.
Eigenschaften
- Phase-shifted full-bridge converter over 200- to 450-V DC input, 10- to 15-V output and power up to 3.6 kW
- Scalable to 800-V input systems with tight regulation
- Soft switching using phase-shifted full-bridge analog control loop
- Soft switching with zero voltage switching (ZVS) on the primary and dynamic on and off control on the secondary to enable higher efficiency
- Synchronization achievable for multiple
- Host MCU for supervision and current and voltage loop control
Typische Anwendungen
- Medical instruments
- Precision instruments, Low-noise filament supplies
- Isolated power supply for CAN,RS-485,RS-422,RS-232,SPI,I2C,low-power LAN, Low-noise isolated USB supplies, Process control, Telecom supplies, Radio supplies, Distributed supplies
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 | 2θ50% typ.(°) | Vin | VOut1(V) | IOut1(mA) | Isolierungstyp | fswitch(kHz) | ∫Udt(Vµs) | NPRI : NSEC | Z @ 100 MHz(Ω) | Zmax(Ω) | Testbedingung Zmax | IR 2(mA) | RDC max.(Ω) | Typ | IR(mA) | L(mH) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | B(mm) | H(mm) | Montageart | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 630 nm, Superrot | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWL-SMCW SMT Mono-color Chip LED Waterclear | dominante Wellenlänge [typ.]630 nm | Emittierte FarbeSuperrot | Spitzen-Wellenlänge [typ.]645 nm | Lichtstärke [typ.]60 mcd | Durchlassspannung [typ.]1.9 V | ChiptechnologieAlInGaP | Abstrahlwinkel Phi 0° [typ.]140 ° | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Länge2 mm | Breite1.25 mm | Höhe0.7 mm | MontageartSMT | ||||
 | WE-CBF SMT-Ferrit, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-CBF SMT-Ferrit | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Impedanz @ 100 MHz120 Ω | Maximale Impedanz200 Ω | Maximale Impedanz510 MHz | Nennstrom 21350 mA | Gleichstromwiderstand0.3 Ω | TypBreitband | Nennstrom500 mA | – | – | – | – | Länge1.6 mm | Breite0.8 mm | Höhe0.8 mm | MontageartSMT | ||||
 | WE-CMBNC Stromkompensierte Netzdrossel Nanokristallin, –, – | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Gleichstromwiderstand0.0022 Ω | – | Nennstrom25000 mA | Induktivität2.5 mH | Nennspannung300 V (AC) | Prüfspannung2100 V (AC) | MaterialNanokristallin | Länge36 mm | Breite23 mm | Höhe34 mm | MontageartTHT | |||||
 | WE-PPTI Push-Pull Transformers, –, – | Simulation– | Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | ProduktserieWE-PPTI Push-Pull Transformers | – | – | – | – | – | – | – | Input Voltage 5 V (DC) | Ausgangsspannung 119 V | Ausgangsstrom 1225 mA | IsolierungstypFunktional | Switching Frequency 350 - 500 | Spannung-µSekunde10 Vµs | Übersetzungsverhältnis1:3.91 | – | – | – | – | – | – | – | Induktivität0.32 mH | – | Prüfspannung2500 V (AC) | – | Länge6.73 mm | Breite10.2 mm | Höhe4.19 mm | MontageartSMT |