Datasheet InnoSwitch3-CP (Power Integrations)

InnoSwitch3-CP
Family Off-Line CV/CC QR Flyback Switcher IC with Integrated Primary Switch, Synchronous Rectification, FluxLink Feedback and Constant Power Profile
Product Highlights Highly Integrated, Compact Footprint
• Up to 94% efficiency across full load range SR FET • Quasi-Resonant (QR) / CCM flyback controller, high-voltage switch4, secondary-side sensing and synchronous rectification driver • Integrated FluxLink™, HIPOT-isolated, feedback link • Easily interfaces to load-directed and fast charge protocol ICs
D V FWD SR GND BPS FB InnoSwitch3-CP
• Constant Power (CP) Profile minimizes charging time with continuous
VOUT
Primary Switch RS adjustment of output current and voltage and Controller • Accurate CV/CC/CP, independent of external components
S BPP IS
Secondary Control IC • External IS resistor allows custom CC programming • Instantaneous transient response with 0%-100%-0% load step PI-8322-072419 Figure 1. Typical Application Schematic.
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
• Secondary Switch or diode short-circuit protection Figure 2. High Creepage, Safety-Compliant InSOP-24D Package. • Open SR FET-gate detection • Fast input line UV/OV protection
Optional Features
-8321-082317 PI • Cable-drop compensation with multiple settings • Variable output voltage, constant current profiles • Auto-restart or latching fault response for output OVP/UVP • Multiple output UV fault thresholds V • Latching or hysteretic primary over-temperature protection PK
Output Voltage (V) Full Safety and Regulatory Compliance
• Reinforced isolation • Isolation voltage >4000 VAC CC set by IS pin resistor (RS) • 100% production HIPOT testing • UL1577 and TUV (EN60950) safety approved
Output Current (A)
• Excellent noise immunity enables designs that achieve class “A” Figure 3. Typical Constant Power Characteristics. performance criteria for EN61000-4 suite; 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)
Output Power Table Green Package
230 VAC ± 15% 85-265 VAC • Halogen free and RoHS compliant
Product3,4 Applications Adapter1 Open Frame2 Adapter1 Open Frame2
• High efficiency flyback designs up to 100 W
INN3264C/3274C
20 W 25 W 15 W 20 W • USB PD / QC / proprietary protocol chargers
INN3265C/3275C
25 W 30 W 22 W 25 W
Description INN3266C/3276C
35 W 40 W 27 W 36 W The InnoSwitch™3-CP family of ICs dramatical y simplifies the design
INN3277C
40 W 45 W 36 W 40 W and manufacture of flyback power converters, particularly those requiring high efficiency and/or compact size. The InnoSwitch3-CP
INN3267C
45 W 50 W 40 W 45 W family incorporates primary and secondary control ers and safety-rated
INN3268C
55 W 65 W 50 W 55 W feedback into a single IC.
INN3279C
80 W 85 W 65 W 75 W InnoSwitch3-CP family devices incorporate multiple protection features
INN3270C
90 W 100 W 75 W 85 W including line over and under-voltage protection, output over-voltage Table 1. Output Power Table. and over-current limiting, and over-temperature shutdown. Devices are Notes: available that support the common combinations of latching and 1. Minimum continuous power in a typical non-ventilated enclosed adapter auto-restart behaviors required by applications such as quick charge measured at 40 °C ambient. (package temperature <125 °C). and USB PD designs. The devices are available with and without 2. Minimum peak power capability. 3. Package: InSOP-24D. cable-drop compensation. 4. 650 V Switch (INN326x); 725 V Switch (INN3274-77); 750 V Switch (INN3279 and INN3270) www.power.com July 2019 This Product is Covered by Patents and/or Pending Patent Applications. Document Outline Product Highlights Description Output Power Table Pin Functional Description InnoSwitch3-CP Functional Description Primary Controller Secondary Controller Applications Example Key Application Considerations Selection of Components Recommendations for Circuit Board Layout Layout Example Quick Design Checklist Absolute Maximum Ratings Thermal Resistance Typical Performance Curves InSOP-24D Package Drawing InSOP-24D Package Marking Part Ordering Table MSL Table ESD and Latch-Up Table Part Ordering Information