IC-Hersteller Texas Instruments

IC-Hersteller (96)

Texas Instruments SN6505 | Demoboard TIDA-020031

Automotive 400-V battery to 12-V,3.6-kW DC/DC converter reference design

Details

TopologieGegentaktwandler (Vollbrücken)
Eingangsspannung2.25-5.5 V
Ausgang 116 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
  • 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
  • Precision instruments, Low-noise filament supplies

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieλDom typ.
(nm)
FarbeλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chiptechnologie50% typ.
(°)
VinVOut1
(V)
IOut1
(mA (AC))
Isolierungstypfswitch
(kHz)
∫Udt
(Vµs)
Z @ 100 MHz
(Ω)
Zmax
(Ω)
Testbedingung ZmaxIR 2
(mA)
RDC max.
(Ω)
TypIR
(mA)
L
(mH)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Montageart Muster
150080SS75000SPEC
7 Dateien WL-SMCW SMT Mono-color Chip LED Waterclear 630 Superrot 645 60 1.9 AlInGaP 140 2 1.25 0.7 SMT
74279262SPEC
9 Dateien WE-CBF SMT-Ferrit 120 200 510 MHz 1350 0.3 Breitband 500 1.6 0.8 0.8 SMT
7448052502SPEC
9 Dateien WE-CMBNC Stromkompensierte Netzdrossel Nanokristallin 0.0022 25000 2.5 300 2100 Nanokristallin 36 23 34 THT
750317722SPEC
1 Dateien WE-PPTI Push-Pull Transformers 5 V (DC) 19 225 Functional 400 10 0.32 2500 10.46 6.73 4.19
Artikel Nr. Daten­blatt Simu­lation
150080SS75000SPEC
74279262SPEC
7448052502SPEC
750317722SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieλDom typ.
(nm)
FarbeλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chiptechnologie50% typ.
(°)
VinVOut1
(V)
IOut1
(mA (AC))
Isolierungstypfswitch
(kHz)
∫Udt
(Vµs)
Z @ 100 MHz
(Ω)
Zmax
(Ω)
Testbedingung ZmaxIR 2
(mA)
RDC max.
(Ω)
TypIR
(mA)
L
(mH)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Montageart Muster