Power Integrations INN3368C-H301 | Demoboard DER-702

Description

This document is an engineering report describing a 5 V / 3 A, 9 V / 3 A, 15 V / 3 A, 20 V/2.25 A USB PD PPS power supply. This power supply uses InnoSwitch3-Pro INN3368C IC and Weltrend WT6635P USB PD controller. This design shows the high power density and efficiency that is possible due to the high level of integration of the InnoSwitch3-Procontroller providing exceptional performance.This document contains the power supply specification, schematic, bill of materials, transformer documentation, printed circuit layout, and performance data.

Features

• InnoSwitch3-Pro - digitally controllable CV/CC QR flyback switcher IC with integrated highvoltage
• MOSFET, synchronous rectification and FluxLinkTM feedback
• I2C interface enables low pin count USB PD controller (10 pin)
• Sophisticated telemetry and comprehensive protection features
• USB PD 3.0 with PPS highly optimized low pin count USB PD controller WT6635P
• All the benefits of secondary-side control with the simplicity of primary-side regulation
• Insensitive to transformer variation
• Meets DOE6 and CoC V5 2016 efficiency requirement (>1% efficiency margin)
• Micro stepping of voltages and CC thresholds in compliance with PPS protocol
• Output overvoltage and overcurrent protection
• <30 mW no-load input power
• Integrated thermal protection
• 20 mV voltage step / 50 mA current step in PPS mode

Typical applications

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

More information

• Datasheet
• IC product information