InnoSwitch-EP Family Off-Line CV/CC Flyback Switcher IC with Integrated 725 V / 900 V MOSFET, Sync-Rect Feedback with Advanced Protection Product Highlights Highly Integrated, Compact Footprint Incorporates flyback controller, 725 V / 900 V MOSFET, secondary- side sensing and synchronous rectification driver SR FET FluxLink integrated, HIPOT-isolated, feedback link Exceptional CV accuracy, independent of transformer design or external components Excellent multi-output cross regulation with weighted SSR feedback and synch FETs D V InnoSwitch-EP EcoSmart Energy Efficient VOUT Primary FET <10 mW no-load at 230 VAC when supplied by transformer bias and Controller winding Optional Current S BPP IS Easily meets all global energy efficiency regulations Secondary Sense Control IC Advanced Protection / Safety Features Primary sensed output OVP PI-7690-0011216 Secondary sensed output overshoot clamp Secondary sensed output OCP to zero output voltage Figure 1. Typical Application/Performance. Hysteretic thermal shutdown Input voltage monitor with accurate brown-in/brown-out and overvoltage protection Full Safety and Regulatory Compliance 100% production HIPOT compliance testing equivalent to 4.8 kV AC for 1 second Reinforced insulation Isolation voltage 3,500 VAC for INN26xx series, 4,000 VAC Figure 2. High Creepage, Safety-Compliant eSOP-R16B Package. for INN2904 UL1577 and TUV (EN60950 and EN62368) safety approved EN61000-4-8 (100 A/m) and EN61000-4-9 (1000 A/m) compliant Output Power Table Green Package 1,2 H alogen free and RoHS compliant Peak or Open Frame 3 Product 725 V MOSFET Applications A ppliance, industrial, utility meter, smart grid, solar inverters and 230 VAC 15% 85-265 VAC smart lighting INN2603K 24 W 15 W Description INN2604K 27 W 20 W The InnoSwitch -EP family of ICs dramatically simplify the development INN2605K 35 W 25 W and manufacturing of low-voltage, high current power supplies, 900 V MOSFET 3 particularly those in compact enclosures or with high efficiency require - Product 230 VAC 15% 85-484 VAC ments. The InnoSwitch-EP architecture is revolutionary in that the devices incorporate both primary and secondary controllers, with sense INN2904K 29 W 20 W 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 enclosed typical size communication link permit accurate control of a secondary-side adapter measured at 40 C ambient. Max output power is dependent on the synchronous rectification MOSFET and optimization of primary-side design. With condition that package temperature must be < = 125 C. switching to maintain high efficiency across the entire load range. 2. Minimum peak power capability. Additionally, the minimal DC bias requirements of the link, enable the 3. Package: eSOP-R16B. system to achieve less than 10 mW no-load to maximize efficiency in standby. www.power.com June 2020 This Product is Covered by Patents and/or Pending Patent Applications. FWD SR GND BPS FBInnoSwitch-EP PRIMARY BYPASS DRAIN (BPP) (D) REGULATOR 5.95 V FAULT BYPASS PIN PRESENT INPUT VOLTAGE UNDERVOLTAGE + MONITOR (V) AUTO- UV BYPASS LINE-SENSE - RESTART OV CAPACITOR 5.95 V COUNTER SELECT AND V I 5.39 V LIMIT CURRENT RESET LIMIT STATE MACHINE CURRENT LIMIT COMPARATOR JITTER CLOCK THERMAL DC MAX SHUTDOWN OSCILLATOR FROM PRI/SEC FEEDBACK DRIVER RECEIVER S Q CONTROLLER PULSE DCMAX S R Q 6.4 V LEADING EDGE OVP BLANKING LATCH 20 SOURCE (S) PI-7453-121114 Figure 3. Primary-Side Controller Block Diagram. OUTPUT VOLTAGE FORWARD (V ) (FWD) O REGULATOR 4.45 V DETECTOR SCONDARY BYPASS HAND SHAKE (BPS) PULSES + CONTROL 4.45 V - 3.80 V FEEDBACK (FB) + - TO FB THRESHOLD RECEIVER FEEDBACK DRIVER ISENSE (IS) + - CLOCK IS THRESHOLD OSCILLATOR ENABLE SR SYNC RECT (SR) ENB Q S Q R SECONDARY SR GROUND THESHOLD (GND) PI-7647-032116 Figure 4. Secondary-Side Controller Block Diagram. 2 Rev. H 06/20 www.power.com - + + -