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IC-Hersteller Nexperia

IC-Hersteller (103)

Nexperia NXF6505A-Q100

Low-noise, 1.2 A transformer driver for isolated power supplies

Details

TopologieGegentaktflusswandler
Eingangsspannung3.3 V
Ausgang 15 V / 1 A
IC-Revision1.3

Beschreibung

The NXF6505A/B-Q100 is a specialized push-pull transformer driver that is designed to deliver low noise and low EMI for isolated power supplies in small form factors. This driver is capable of driving low-profile, center-tapped transformers from a 2.25 V to 5 V DC power supply, while achieving ultra-low noise and EMI through the use of slew rate control and Spread Spectrum Clocking (SSC).The NXF6505A/B-Q100 comprises an oscillator and a gate drive circuit that produces complementary output signals to drive ground-referenced N-channel power switches. To ensure start-up under heavy loads, the device includes two 1.2 A Power-MOSFET switches. Additionally, the switching clock can be provided externally for precise placement of switcher harmonics or when operating with multiple transformer drivers.The NXF6505A/B-Q100 also features internal protection features such as current limiting, under-voltage lockout, thermal shutdown, and break-before-make circuitry, ensuring the device operates within safe limits. The device also includes a soft-start feature that prevents high inrush current during power-up with large load capacitors.The NXF6505A-Q100 includes a 170 kHz internal oscillator for applications that need to minimize emissions, while the NXF6505B-Q100 has a 440 kHz internal oscillator for applications that require higher efficiency and smaller transformer. The NXF6505A/B-Q100 is available in a small 6 pin SOT8061-1 package and is characterized for operation within a temperature range of -55 °C to 125 °C.This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

Eigenschaften

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)
  • Specified from -55 °C to +125 °C
  • Push-pull driver for transformers
  • Wide input voltage range: 2.25 V to 5.5 V
  • High output drive: 1.2 A at 5 V supply
  • Low RON 0.2 Ω maximum at 5 V supply
  • Optimized for low EMI
  • Spread Spectrum Clocking (SSC)
  • Internal switching frequency:
  • for NXF6505A-Q100: 170 kHz )
  • for NXF6505B-Q100: 440 kHz )
  • Synchronization of multiple devices with external clock input
  • Slew-rate control
  • 1.7 A current limit
  • Enable pin to put device in low shutdown current: <1 μA
  • Thermal shutdown
  • Small 6 pin SOT8061-1 package
  • Soft-start to reduce In-rush current
  • ESD protection:
  • HBM: ANSI/ESDA/JEDEC JS-001 class 3A exceeds 6000 V
  • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1500 V

Typische Anwendungen

  • Medical instruments
  • Low-noise isolated USB supplies
  • Process control
  • Precision instruments
  • Traction inverter and motor control, On-board charger, Battery management system, DC-DC converter
  • Distributed supplies, Low-noise filament supplies, Isolated power supply for CAN, RS-485, RS-422, RS-232, SPI, I²C, low-power LAN, Isolated power supplies for automotive (Q100)
  • Radio supplies, Telecom supplies

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Downloads Status ProduktserieVinVOut1
(V)
IOut1
(A)
Isolierungstypfswitch
(kHz)
∫Udt
(Vµs)
NPRI : NSECL
(µH)
VT
(V (RMS))
L
(mm)
W
(mm)
H
(mm)
Montageart Muster
750316032SPEC
7 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-PPTI Push-Pull Transformers 3.3 V (DC) 5 0.9 Verstärkt 150 - 700 40 1:2 370 5000 12.32 15.41 11.89 SMT
Artikel Nr. Daten­blatt
750316032SPEC
Muster
Artikel Nr. Daten­blatt Downloads Status ProduktserieVinVOut1
(V)
IOut1
(A)
Isolierungstypfswitch
(kHz)
∫Udt
(Vµs)
NPRI : NSECL
(µH)
VT
(V (RMS))
L
(mm)
W
(mm)
H
(mm)
Montageart Muster