(China (Mainland))
Product Summary
The STRW6853P is a Flyback Switching Regulator. The STRW6853P is a quasi-resonant regulator specifically designed to satisfy the requirements for increased integration and reliability in switch-mode power supplies. It incorporates a primary control and drive circuit with an avalanche-rated power MOSFET. The regulator exhibits only low-level high-frequency EMI noise because of soft switching of the MOSFET close to ground (bottom point). A bottom-skip function minimizes an increase of operational frequency during light loads to improve system efficiency over the entire load range.
Parametrics
STRW6853P absolute maximum ratings: (1)Control Supply Voltage, VCC: 35 V; (2)Drain-Source Voltage, VDSS: 650 V; (3)Drain Switching Current, ID: 11.2 A*; (4)Peak Drain Switching Current, IDM: 11.2 A; (5)Single-Pulse Avalanche Energy, EAS: 145 mJ; (6)OCP/BD Voltage Range, VOCP: –1.5 V to +5 V; (7)FB Input Current, IFB: 10 mA; (8)FB Voltage Range, VFP: –0.5 V to +9 V; (9)Package Power Dissipation, PD control (VCC × ICC(ON)): 0.8 W; (10)Internal Frame Temp., TF: +115°C; (11)Operating Temperature Range, TA: -20°C to +115°C; (12)Storage Temperature Range, TS: -40°C to +125°C.
Features
STRW6853P features: (1)Rugged 650 V Avalanche-Rated MOSFET Simplified Surge Absorption No VDSS Derating Required; (2)1.7 Ω Maximum rDS(on); (3)Two Operational Modes by Automatic Switching: Quasi-Resonant Mode for Normal Operation Burst Mode for Standby Operation or Light Loads; (4)Automatic or Manually Triggered Burst Standby Input Power <0.1 W at No Load; (5)Low Operating Current (6 mA typ).
Diagrams
