Datasheet InnoSwitch3-Pro (Power Integrations)

InnoSwitch3-Pro
Family Digital y Control able Off-Line CV/CC QR Flyback Switcher IC with Integrated High-Voltage Switch, Synchronous Rectification and FluxLink Feedback
Product Highlights VBUS Digitally Controlled via I2C Interface
• Dynamic adjustment of power supply voltage and current • Telemetry for power supply status and fault monitoring
RTN
• Comprehensive set of configurable protection features
Highly Integrated, Compact Footprint
• Multi-mode Quasi-Resonant (QR) / DCM / CCM flyback control er, high-voltage switch, secondary-side sensing and synchronous
D V FWD SR BPS GND IS VOUT VB/D
rectifier driver
InnoSwitch3-Pro CONTROL CC1 uVCC
• Optimized efficiency across line and load range Primary Switch
SDA I2C
and Controller
SCL
• Integrated FluxLink™, HIPOT-isolated, feedback link
CC2 S BPP
MCU • Instantaneous transient response Secondary Control IC • Drives low-cost N-channel FET series load switch PI-8379-020119 • Integrated 3.6 V supply for external MCU Figure 1. Typical Application.
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
Advanced Protection / Safety Features
• Input voltage monitoring with accurate brown-in/brown-out and Figure 2. High Creepage, Safety-Compliant InSOP-24D Package. overvoltage protection • Output OV/UV fault detection with independently configured responses
Output Power Table1
• Open SR FET gate detection 230 VAC ± 15% 85-265 VAC • Hysteretic thermal shutdown
Product4,5
• Programmable watchdog timer for system faults
Adapter Open Open 2 Frame Adapter2 3 Frame3 Full Safety and Regulatory Compliance
• Reinforced insulation
INN3365C/3375C
25 W 30 W 22 W 25 W • Isolation voltage >4000 VAC
INN3366C/3376C
35 W 40 W 27 W 36 W • 100% production HIPOT compliance testing
INN3377C
40 W 45 W 36 W 40 W • UL1577 and TUV (EN60950) safety approved
INN3367C
45 W 50 W 40 W 45 W
Green Package INN3368C
55 W 65 W 50 W 55 W • Halogen free and RoHS compliant
INN3379C
80 W 85 W 65 W 75 W
Applications INN3370C
90 W 100 W 75 W 85 W • High efficiency USB PD 3.0 + PPS/QC adapters • Multiprotocol adapters including QuickCharge, AFC, FCP, SCP Table 1. Output Power Table. Notes: • Direct-charge mobile device chargers 1. Maximum output power is dependent on the design, with maximum IC • Multi-chemistry tool and general purpose battery chargers package temperature kept <125 °C. • Adjustable CV and CC LED bal ast 2. Minimum continuous power in a typical non-ventilated enclosed typical size adapter measured at 40 °C ambient.
Description
3. Minimum peak power capability. 4. C Package: InSOP-24D. The InnoSwitch™3-Pro series family of ICs dramatical y simplifies the 5. INNxx6xC − 650 V switch, INNxx7xC − 725 V switch, INNxx79C and development and manufacturing of ful y programmable, highly efficient INNxx70C − 750 V switch. power supplies, particularly those in compact enclosures. The universal I2C interface enables dynamic control of output voltage and current InnoSwitch3-Pro devices are ideal for AC/DC power supply applications along with many configurable features. Telemetry provides reporting where fine (10 mV, 50 mA) output voltage and current adjustment are of programmed features and fault modes. necessary. Typical implementations comprise a system microprocessor or dedicated microcontrol er with an I2C 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 implemen- tations such as USB PD adapters and chargers. www.power.com July 2019 This Product is Covered by Patents and/or Pending Patent Applications. Document Outline Product Highlights Description Output Power Table Pin Functional Description InnoSwitch3-Pro Functional Description Primary Controller Secondary Controller Register Definition Command Registers Telemetry (Read-back) Registers I2C Connection I2C Example Waveforms Applications Example Key application Considerations Selection of Components Components for InnoSwitch3-Pro IC Primary-Side Circuit Components for InnoSwitch3-PRO Secondary-Side Circuit Recommendations for Circuit Board Layout Layout Example Recommendations for Transformer Design Application Considerations for INN3379C and INN3370C Only Quick Design Checklist Theremal Resistance Test Conditions for INN3379C and INN3370C Absolute Maximum Ratings Thermal Resistance Key Electrical Characteristics Typical Performance Curves InSOP-24D Package Drawing Part Ordering Table MSL Table ESD and Latch-Up Table Part Ordering Information