Power Integrations InnoSwitch3-Pro Series

InnoSwitch3-Pro series offline switcher ICs

Power Integrations has announced the InnoSwitch3-Pro family of configurable offline CV/CC and CP flyback switcher ICs

Power Integrations InnoSwitch3-Pro Series Offline Switcher ICs

Power Integrations has announced the InnoSwitch3-Pro family of configurable offline CV/CC and CP flyback switcher ICs. Capable of delivering up to 65 W and achieving up to 94% efficiency across line and load conditions, the new devices permit precise, dynamically adjustable, control of voltage (10 mV step) and current (50 mA step), via a simple two-wire I2C interface. Devices may be paired with a microcontroller or take inputs from the system CPU to control and monitor the off-line power supply. Applications include virtually any rapid-charging protocol, including USB Power Delivery (PD) 3.0 + PPS, Quick Charge™ 4/4+, AFC, VOOC, SCP, FCP and other industrial and consumer battery chargers, dimmable LED ballast drivers and field-configurable industrial power supplies.
 
InnoSwitch3-Pro power-conversion ICs include a microprocessor VCC supply - eliminating the need for an external LDO to power the microcontroller; also included is an n-channel FET driver which may be used to enable or disable the main power output. Together with integrated bus voltage, current and fault-reporting telemetry and dynamically configurable protection functions such as OTP, line OV/UV, output OV/UV, and short-circuit, the BOM count for a sophisticated offline power supply is significantly reduced and design complexity is dramatically simplified.
 
New InnoSwitch3-Pro ICs employ Power Integrations’ high-speed digital communications technology, FluxLink™, plus synchronous rectification, quasi-resonant switching and a precise secondary-side feedback sensing and feedback control circuit. Devices are CQC certified, UL recognised and TUV (EN60950) approved to bridge the isolation barrier; the products’ InSOP™-24D package also provides a low-profile, thermally efficient solution with extended creepage (>11.5 mm) and clearance between primary and secondary sides for high reliability, surge protection and ESD robustness.
 
InnoSwitch3-Pro ICs target fast-charging protocols for applications such as smartphones, notebooks, tablets, smart speakers and non-charging applications that require either a  load-controlled or configurable output.

 

Features

  • Digitally Controlled via I2C Interface
    • Dynamic adjustment of power supply voltage and current
    • Telemetry status read-back with processor interrupt
    • Comprehensive set of configurable features
  • Highly Integrated, Compact Footprint
    • Multi-mode Quasi-Resonant (QR) / CCM flyback controller, 650 V or 725 V MOSFET, secondary-side sensing and synchronous rectifier driver
    • Optimized efficiency across line and load range
    • Integrated FluxLink™, HIPOT-isolated, feedback link
    • Instantaneous transient response
    • Drives low-cost N-channel MOSFET 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
    • Easily meets all global energy efficiency regulations
    • Low heat dissipation
  • Advanced Protection / Safety Features
    • Input voltage monitor with accurate brown-in/brown-out and overvoltage protection
    • Output OV/UV fault detection with independently configured responses
    • Secondary FET / diode short protection
    • Open SR FET gate detection
    • Hysteretic thermal shutdown
    • Programmable watchdog timer functionality for system faults
    • Telemetry for power supply status and fault monitoring
  • Full Safety and Regulatory Compliance
    • Reinforced insulation
    • Isolation voltage >4000 VAC
    • 100% production HIPOT compliance testing
    • UL1577 and TUV (EN60950) safety approved
  • Green Package
    • Halogen free and RoHS compliant

 

Applications

  • High efficiency USB PD 3.0 + PPS/QCA adapters
  • Multiprotocol adapters including QuickCharge, AFC, FCP, SCP
  • Direct-charge mobile device chargers
  • Multi-chemistry tool and general purpose battery chargers
  • Adjustable CV and CC LED ballast designs up to 65 W

Contact our product specialists

Ask an expert

Have a question? Our regional technical specialists are on hand to help.

Related documents



Subscribe to our Newsletters

Researching technology for your next application design? We can help you get project ready. Get the latest design tools and solutions, Engineers' Insight and Focus magazine sent straight to your inbox.

SUBSCRIBE