INN2125K-TL Power Integrations

InnoSwitch-CE Family Off-Line CV/CC Flyback Switcher IC with Integrated 650 V MOSFET, Sync-Rect and Feedback with High Output Current (>2 A) Capability Product Highlights Highly Integrated, Compact Footprint Incorporates flyback controller, 650 V MOSFET, secondary-side sensing and synchronous rectification driver SR FET FluxLink integrated, HIPOT-isolated, feedback link Exceptional CV accuracy, tolerant of transformer and board component variances Adjustable accurate output current using external output sense resistor D V InnoSwitch-CE EcoSmart Energy Efficient VOUT Primary FET <10 mW no-load at 230 VAC when supplied by transformer bias and Controller winding Current S IS BPP Easily meets all global energy efficiency regulations Sense Secondary Control IC Advanced Protection / Safety Features Primary sensed output OVP PI-7719-121415 Secondary sensed output overshoot clamp Figure 1. Typical Application/Performance. S econdary sensed output OCP to zero output voltage H ysteretic 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 6 kV DC/1 sec Reinforced insulation Isolation voltage >3,500 VAC UL1577 and TUV (EN60950) safety approved Figure 2. High Creepage, Safety-Compliant eSOP-R16B Package. EN61000-4-8 (100 A/m) and EN61000-4-9 (1000 A/m) compliant Green Package Halogen free and RoHS compliant Applications High current charger and adapters for mobile devices Output Power Table Consumer electronics set top boxes, networking, gaming, LED 85-265 VAC Description 4 Product Peak or 1 Adapter The InnoSwitch -CE family of ICs dramatically simplify the development 1,2 Open Frame and manufacturing of low-voltage, high current power supplies, 3 INN21x3K 12 W 15 W particularly those in compact enclosures or with high efficiency require - 3 ments. The InnoSwitch-CE architecture is revolutionary in that the INN21x4K 15 W 20 W devices incorporate both primary and secondary controllers, with sense 3 INN21x5K 20 W 25 W elements and a safety-rated feedback mechanism into a single IC. Table 1. Output Power Table. Close component proximity and innovative use of the integrated Notes: 1. Minimum continuous power in a typical non-ventilated enclosed typical size communication link permit accurate control of both 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. MOSFET switching. This improves system reliability, maximizes 2. Minimum peak power capability. efficiency across the power range from full load to low-power standby. 3. x = 0 (no cable compensation), x = 2 (300 mV cable compensation). 4. Package: K: eSOP-R16B. www.power.com September 2017 This Product is Covered by Patents and/or Pending Patent Applications. FWD SR GND BPS FBInnoSwitch-CE 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 CABLE RECEIVER COMPENSATION FEEDBACK DRIVER ISENSE (IS) + IS THRESHOLD - CLOCK OSCILLATOR ENABLE SR SYNC RECT (SR) ENB Q S Q R SECONDARY SR GROUND THESHOLD (GND) PI-7813-102416 Figure 4. Secondary-Side Controller Block Diagram. 2 Rev. D 09/17 www.power.com - + + -