InnoSwitch3-Pro Family Digitally Controllable Off-Line CV/CC QR Flyback Switcher IC with Integrated High-Voltage Switch, Synchronous Recticfi ation and FluxLink Feedback VBUS Product Highlights 2 Digitally Controlled via I C Interface Dynamic adjustment of power supply voltage and current Telemetry for power supply status and fault monitoring RTN Comprehensive set of configurable protection features PowiGaN technology up to 100 W without heatsinks (INN3378C, INN3379C and INN3370C) D V Highly Integrated, Compact Footprint InnoSwitch3-Pro CC1 CONTROL Multi-mode Quasi-Resonant (QR) / DCM / CCM flyback controller, uVCC Primary Switch SDA 2 I C high-voltage switch, secondary-side sensing and synchronous and Controller SCL CC2 rectifier driver S BPP MCU Secondary Optimized efficiency across line and load range Control IC PI-8379-020119 Integrated FluxLink, HIPOT-isolated, feedback link Instantaneous transient response Figure 1. Typical Application. Drives low-cost N-channel FET series load switch Integrated 3.6 V supply for external MCU EcoSmart Energy Efficient Less than 30 mW no-load including line sense and MCU Enables power supply designs that easily comply with all global energy efficiency regulations Low heat dissipation Figure 2. High Creepage, Safety-Compliant InSOP-24D Package. Advanced Protection / Safety Features Input voltage monitoring with accurate brown-in/brown-out and 1 Output Power Table overvoltage protection Output OV/UV fault detection with independently configured 230 VAC 15% 85-265 VAC responses 4,5 Product Open Open Open SR FET gate detection 2 2 Adapter Adapter 3 3 Frame Frame Hysteretic thermal shutdown Programmable watchdog timer for system faults INN3365C/3375C 25 W 30 W 22 W 25 W INN3366C/3376C 35 W 40 W 27 W 36 W Full Safety and Regulatory Compliance Reinforced insulation INN3377C 40 W 45 W 36 W 40 W Isolation voltage >4000 VAC INN3367C 45 W 50 W 40 W 45 W 100% production HIPOT compliance testing INN3368C 55 W 65 W 50 W 55 W UL1577 and TUV (EN60950 and EN62368) safety approved INN3378C 70 W 75 W 55 W 65 W Green Package Halogen free and RoHS compliant INN3379C 80 W 85 W 65 W 75 W INN3370C 90 W 100 W 75 W 85 W Applications High efficiency USB PD 3.0 + PPS/QC adapters Table 1. Output Power Table. Notes: Multi protocol adapters including QuickCharge, AFC, FCP, SCP 1. Maximum output power is dependent on the design, with maximum IC Direct-charge mobile device chargers package temperature kept <125 C. Multi-chemistry tool and general purpose battery chargers 2. Minimum continuous power in a typical non-ventilated enclosed typical size Adjustable CV and CC LED ballast adapter measured at 40 C ambient. 3. Minimum peak power capability. Description 4. C Package: InSOP-24D. 5. INN336xC 650 V MOSFET, INN337xC 725 V MOSFET, INN3378C, The InnoSwitch3-Pro series family of ICs dramatically simplifies the INN3379C and INN3370C 750 V PowiGaN switch. development and manufacturing of fully programmable, highly efficient power supplies, particularly those in compact enclosures. The universal InnoSwitch3-Pro devices are ideal for AC/DC power supply applications 2 I C interface enables dynamic control of output voltage and current where fine (10 mV, 50 mA) output voltage and current adjustment are along with many configurable features. Telemetry provides reporting necessary. Typical implementations comprise a system microprocessor 2 of programmed features and fault modes. or dedicated microcontroller with an I C port that is used to configure, control and supervise operation of the power sub-system. The uVCC pin provides a bias supply for the microprocessor in stand-alone implementations such as USB PD adapters and chargers. www.power.com November 2020 This Product is Covered by Patents and/or Pending Patent Applications. FWD SR BPS GND IS VOUT VB/DInnoSwitch3-Pro DRAIN UNDER/OVER PRIMARY BYPASS (D) INPUT VOLTAGE (V) (BPP) PRIMARY BYPASS REGULATOR LINE INTERFACE From Secondary Controller CONTROL LOGIC RECEIVER CONTROLLER THERMAL SHUTDOWN BPP SenseFET Power Switch DRIVER SOURCE PI-8492-112618 (S) Figure 3. Primary Controller Block Diagram. SECONDARY BYPASS FORWARD SYNC RECTIFIER DRIVE (FWD) (SR) (BPS) uVCC VOUT VB/D VO CHARGE PUMP / LDO LOAD DISCHARGE REGULATOR 4.4 V VO BPS UV DETECTOR FW PK HANDSHAKE/ SECONDARY SEC-FAULT FAULT SDA CONTROL INH INH FW PK VREF SEC REQ DIGITAL FluxLink FEEDBACK CONTROLLER DRIVER Ts MAX SCL t OFF(MIN) OSCILLATOR/ t SECINH(MAX) TIMER IREF IS PI-8478-080819 Figure 4. Secondary Controller Block Diagram. 2 Rev. O 11/20 www.power.com - + - +