Datasheet LYTSwitch-6 (Power Integrations)

LYTSwitch-6
Family Flyback CV/CC LED Driver IC with Integrated High-Voltage Switch and FluxLink Feedback
Product Highlights Highly Integrated, Compact Footprint
• Up to 94% efficiency across full load range • Incorporates a multi-mode Quasi-Resonant (QR) / CCM / DCM flyback SR FET controller, high-voltage switch, secondary-side control and synchro- nous rectification driver • Integrated FluxLink™, HIPOT-isolated, feedback link • Exceptional CV/CC accuracy, independent of transformer design or external components
D V FWD SR GND BPS FB
• Adjustable accurate output current sense using external sense resistor
LYTSwitch-6
Optional • PowiGaN™ technology – up to 100 W without heat sinks (LYT6079C
VOUT
Primary Switch Current and Controller and LYT6070C) Sense
S BPP IS EcoSmart™ – Energy Efficient
Secondary Control IC • Less than 30 mW no-load including line sense (without PF front end) • Designs using LYTSwitch-6 easily meet Energy Star and all global PI-8375-112718 lighting energy efficiency regulations Figure 1. Typical Application/Performance. • Low heat dissipation
Advanced Protection / Safety Features
• Input line OV with auto-restart • Output fault OVP/UVP with auto-restart • Open SR FET gate detection • Input voltage monitor with accurate brown-in • Thermal foldback ensures that power continues to be delivered (lower level) at elevated temperatures Figure 2. High Creepage, Safety-Compliant InSOP-24D Package.
Full Safety and Regulatory Compliance
• Reinforced insulation • Isolation voltage >4000 VAC
Output Power Table
• 100% production HIPOT compliance testing • UL1577 and TUV (EN60950 and EN62368) safety approved 277 VAC ± 15% 85-305 VAC 380 VDC /
Green Package Product2,3
450 VDC2 • Halogen free and RoHS compliant
Open Frame1 Open Frame1 Open Frame1 Applications LYT6063C/6073C
15 W 12 W 25 W • Isolated off-line LED driver
LYT6065C/6075C
30 W 25 W 40 W • Smart LED lighting
LYT6067C/6077C
50 W 45 W 60 W • High-voltage flyback post regulator
LYT6068C
65 W 55 W
Description Product2
750 V PowiGaN Switch The LYTSwitch™-6 series family of ICs dramatical y simplifies the development and manufacturing of off-line LED drivers, particularly
LYT6078C
75 W 65 W 90 W those in compact enclosures or with high efficiency requirements.
LYT6079C
85 W 75 W 100 W The LYTSwitch-6 architecture is revolutionary in that the devices
LYT6070C
95 W 85 W 110 W incorporate both primary and secondary control ers, with sense elements and a safety-rated feedback mechanism into a single IC. Table 1. Output Power Table. Notes: Close component proximity and innovative use of the integrated 1. Minimum continuous power in a typical non-ventilated and PCB size measured communication link, FluxLink, permit accurate control of a secondary- at 40 °C ambient. Max output power is dependent on the design. With side synchronous rectification MOSFET with Quasi-Resonant switching condition that package temperature must be < 125 °C. of primary integrated high-voltage switch to maintain high efficiency 2. Package: InSOP-24D. 3. LYT606x ‒ 650 V MOSFET, LYT607x ‒ 725 V MOSFET. across the entire load range. www.power.com June 2020 This Product is Covered by Patents and/or Pending Patent Applications. Document Outline Product Highlights Description Output Power Table LYTSwitch-6 Functional Description Primary Controller Secondary Controller Absolute Maximum Ratings Thermal Resistance Key Electrical Characteristics Typical Performance Curves InSOP-24D Package Drawing MSL Table ESD and Latch-Up Table Part Ordering Information