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SC1933C Datasheet(PDF) 1 Page - Power Integrations, Inc. |
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SC1933C Datasheet(HTML) 1 Page - Power Integrations, Inc. |
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1 / 28 page  SC1933C/SC1936C www.power.com November 2018 Off-Line CV/CC QR Flyback Switcher IC with Integrated Primary Switch, Synchronous Rectification and FluxLink Feedback This Product is Covered by Patents and/or Pending Patent Applications. Product Highlights Highly Integrated, Compact Footprint • Up to 94% efficiency across full load range • Quasi-Resonant (QR) / CCM flyback controller, high-voltage switch, secondary-side sensing and synchronous rectification driver • Integrated FluxLink™, HIPOT-isolated, feedback link • Easily interfaces to load-directed and fast charge protocol ICs • Constant Power (CP) Profile minimizes charging time with continuous adjustment of output current and voltage • Accurate CV/CC/CP, independent of external components • External IS resistor allows custom CC programming • Instantaneous transient response with 0%-100%-0% load step EcoSmart™ – Energy Efficient • Less than 30 mW no-load including line sense • Easily meets all global energy efficiency regulations • Low heat dissipation Advanced Protection / Safety Features • Open SR FET-gate detection • Fast input line UV/OV protection Full Safety and Regulatory Compliance • Reinforced isolation • Isolation voltage >4000 VAC • 100% production HIPOT testing • UL1577 and TUV (EN60950) safety approved • Excellent noise immunity enables designs that achieve class “A” performance for EN61000-4; EN61000-4-2, 4-3 (30 V/m), 4-4, 4-5, 4-6, 4-8 (100 A/m) and 4-9 (1000 A/m) Green Package • Halogen free and RoHS compliant Applications • High efficiency flyback designs • USB PD • Set-top boxes, networking, gaming • High current chargers and adapters for mobile devices Description SC1933C/SC1936C dramatically simplifies the design and manufacture of flyback power converters, particularly those requiring high efficiency and/or compact size. SC1933C/SC1936C incorporates primary and secondary controllers and safety-rated feedback into a single IC. SC1933C/SC1936C incorporates multiple protection features including line over and undervoltage protection, output overvoltage and over-current limiting, and over-temperature shutdown. Devices are available that support the common combinations of latching and auto-restart behaviors required by applications such as quick charge and USB PD designs. The devices are available with and without cable-drop compensation. Figure 1. Typical Application Schematic. Output Power Table Product4 230 VAC ± 15% 85-265 VAC Adapter1 Open Frame2 Adapter1 Open Frame2 SC1933C 80 W 85 W 65 W 75 W SC1936C 90 W 100 W 75 W 85 W Table 1. Output Power Table. Notes: 1. Lowest maximum continuous power in a typical non-ventilated enclosed adapter measured at 40 °C ambient. (package temperature < 125 °C). 2. Minimum peak power capability. 3. Package: InSOP-24D. Figure 2. High Creepage, Safety-Compliant InSOP-24D Package. PI-8644a-062518 Secondary Control IC SR FET D V S IS VOUT BPP Primary Switch and Controller SC1933C/SC1936C |
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