Power Integrations INN3879C-H803 | Demoboard DER-837

Description

This document is an engineering report describing a 45 W USB PD 3.0 power supply using InnoSwitch3-PD INN3879C-H803, which features an integrated USB PD controller within the IC.

Features

• InnoSwitch3-PD: Off-Line CV/CC QR Flyback Switcher IC with Integrated USB Type-C and USB-PD Controller, Integrated High-Voltage Switch, Synchronous Rectification and FluxLink FeedbackTM
• Integrated USB Type-C and USB-PD Controller reduces footprint, no external controller required
• Comprehensive protection features with telemetry for power supply status and fault monitoring
• Meets DOE6 and CoC v5 2016 Average Efficiency requirements with high margin (>2.5%)
• 5 V Output: 91.01% at 115 VAC (6.02% margin); 90.55% at 230 VAC (5.56% margin)
• 9 V Output: 91.75% at 115 VAC (2.90% margin); 92.05% at 230 VAC (3.20% margin)
• 15 V Output: 92.03% at 115 VAC (3.18% margin); 92.27% at 230 VAC (3.42% margin)
• 20 V Output: 91.55% at 115 VAC (2.70% margin); 91.80% at 230 VAC (2.95% margin)
• <20 mW no-load input power at 230 VAC
• Meets CISPR22 / EN55022 Class B Conducted EMI with high margin

• 7dB margin at worst case condition (20 V / 2.25 A, 230 VAC)

• Low component count, high power density
• Total part count: 54
• Power density: 14.0 W / inch3 without enclosure (1.89” x 1.81” x 0.94” form factor)

Typical applications

• USB PD Adapter

More information

• Datasheet
• IC product information