Power Integrations InnoSwitch3-Pro ICs
Power Integrations InnoSwitch™3-Pro ICs simplify the development and manufacturing of fully programmable, highly efficient power supplies, particularly those in compact enclosures. Power Integrations InnoSwitch3-Pro offers a universal I2C interface enabling dynamic control of output voltage and current along with many configurable features. These features include a highly integrated compact footprint, energy-efficient EcoSmart™, advanced protection/safety, and full safety and regulatory compliance.
The InnoSwitch3-Pro ICs are ideal for AC/DC power supply applications where fine (10mV, 50mA) output voltage and current adjustment is a requirement. Typical implementations include a system microprocessor or dedicated microcontroller used to configure, control and supervise the operation of the power sub-system. The uVCC pin allows a bias supply for the microprocessor in stand-alone implementations such as USB PD adapters and chargers.
Features
- Digitally controlled via I2C interface
- Dynamic adjustment of power supply voltage and current
- Telemetry for power supply status and fault monitoring
- Comprehensive set of configurable protection features
- Highly integrated, compact footprint
- Multi-mode quasi-resonant (QR)/DCM/CCM flyback controller, 650V or 725V 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 3.6V supply for external MCU
- EcoSmart – energy efficient
- Less than 30mW no-load, including line sense and MCU
- Enables power supply designs that easily comply with all global energy efficiency regulations
- Low heat dissipation
- Advanced protection / safety
- Input voltage monitoring 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 for system faults
- Full safety and regulatory compliance
- Reinforced insulation
- >4000VAC isolation
- 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/QC adapters
- Multiprotocol adapters, including QuickCharge, AFC, FCP, SCP
- Direct-charge mobile device chargers
- Multi-chemistry tools and general-purpose battery chargers
- Adjustable CV and CC LED ballast
Reference Design Kits
Power Integrations RDK-641 Reference Design Kit
Combining InnoSwitchTM 3-Pro INN3377C–H301 and Microchip’s PIC16F18325 microcontroller.
Typical Application Circuit
PI Expert Online
Power Integrations PI Expert Online
An innovative tool to build input specifications and generate power conversion solutions.
Associated Products
Power Integrations MinE-CAP ICs
Offers a 90VAC to 350+VAC input range and up to 50% volume reduction of input bulk capacitors.
Power Integrations InnoSwitch ICs
Incorporates both primary and secondary controllers with sense elements into a single IC.
Power Integrations InnoSwitch™3 with PowiGaN™ ICs
Incorporates primary & secondary controllers, with sense elements and FluxLink™ into a single IC.
Power Integrations InnoSwitch™3-PD ICs
Simplifies the development and manufacturing of USB-PD power supplies.