Power Integrations INN3377C-H301

Description

This document is an engineering report describing a 5 A CV/CC charger (3 V to 8 V range), which switches to constant power in the 8 V to 20 V range using the InnoSwitch3-Pro and Microchip’s PIC16F18325 microcontroller. PIC16F18325 controls the InnoSwitch3-Pro via an I2C interface, programming its COMMAND and telemetry registers. This design shows the high power density and efficiency that is possible from the high level of integration in the InnoSwitch3-Pro controller. The report contains the power supply specification, schematic, bill of materials, transformer documentation,printed circuit layout, and performance data.

Features

• InnoSwitch3-Pro is industry’s first AC/DC IC with isolated, safety rated integrated feedbackand I2C interface
• Completely programmable and configurable
• Controllable output voltage and output current
• Telemetry (read-back) feature with fully configurable protection features
• All the benefits of secondary-side control with the simplicity of primary-side regulation
• Insensitive to transformer variation
• Built in synchronous rectification driver for high efficiency
• Easily meets DOE6 and CoC V5 2016 efficiency standards
• <30 mW no-load input power
• Integrated thermal protection
• Primary sensed line overvoltage protection
• 3rd Party Microcontroller – Microchip PIC16F18325

Typical applications

• Programmable Industrial Power Supply

More information

• Datasheet
• IC product information