Power Integrations INN3379C-H302 | Demoboard RDR-802

Description

This document is an engineering report describing a 60 W USB PD power supply with 5 V / 3 A, 9 V / 3 A, 15 V / 3 A, 20 V / 3 A or 3.3 V – 21 V Programmable Power Supply (PPS) output using InnoSwitch3-Pro INN3379C-H302 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-Pro controller providing exceptional performance.The report contains the power supply specification, schematic diagram, printed circuit board layout, bill of materials, transformer documentation, and performance data.

Features

• InnoSwitch3-Pro - digitally controllable CV/CC QR flyback switcher IC with integrated highvoltageMOSFET, 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 using 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 (>2% efficiency margin)
• Micro stepping of voltages (20 mV) and CC thresholds (50 mA) in compliance with PPSprotocol
• Output overvoltage and overcurrent protection
• Integrated thermal protection
• <35 mW no-load input power

Typical applications

• Mobile phone Charger

More information

• Datasheet
• IC product information