Topologie | Gegentaktflusswandler |
Eingangsspannung | 5 V |
Schaltfrequenz | 138-203 kHz |
IC-Revision | I |
The SN6505 is a low-noise, low-EMI push-pulltransformer driver, specifically designed for smallform factor, isolated power supplies. It drives lowprofile,center-tapped transformers from a 2.25 V to5 V DC power supply. Ultra-low noise and EMI areachieved by slew rate control of the output switchvoltage and through Spread Spectrum Clocking(SSC). The SN6505 consists of an oscillator followedby a gate drive circuit that provides thecomplementary output signals to drive groundreferencedN-channel power switches. The deviceincludes two 1-A Power-MOSFET switches to ensurestart-up under heavy loads. The switching clock canalso be provided externally for accurate placement ofswitcher harmonics, or when operating with multipletransformer drivers. The internal protection featuresinclude a 1.7A current limiting, under-voltage lockout,thermal shutdown, and break-before-make circuitry.SN6505 includes a soft-start feature that preventshigh inrush current during power up with large loadcapacitors. The SN6505 is available in a small 6-pinSOT23/DBV package. The device operation ischaracterized for a temperature range from –55°C to125°C.
Push-Pull Driver for transformers
Artikel Nr. | Datenblatt | Downloads | Status | Produktserie | Vin | VOut1 (V) | IOut1 (A) | Isolierungstyp | fswitch (kHz) | ∫Udt (Vµs) | NPRI : NSEC | L (µH) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Montageart | Muster | |
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750316030 | SPEC | 7 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-PPTI Push-Pull Transformers | 4.5 - 5.5 V (DC) | 3.3 | 1.2 | Functional | 400 - 700 | 10.2 | 1.3:1 | 94 | 2500 | 8.3 | 12.6 | 4.1 | SMT |
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Artikel Nr. | Datenblatt | Downloads | Status | Produktserie | Vin | VOut1 (V) | IOut1 (A) | Isolierungstyp | fswitch (kHz) | ∫Udt (Vµs) | NPRI : NSEC | L (µH) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Montageart | Muster |
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