Infineon Technologies CYPAP111A3-10SXQ | Demoboard CY-SD1124 45W USB-C PD

Description

Cypress CYPAP111 part of PAG1P family is designed for a secondary controlled AC/DC flyback converter topology. In this topology, the voltage and current regulation is performed by the secondary controller. CYPAP111 is responsible for providing the start-up function, driving the primary side FET as well as responding to fault conditionsCypress CYPAS111 part of PAG1S family is an integrated secondary-side synchronous flyback controller, synchronous rectifier (SR) controller, and charging port controller. CYPAS111 is designed to fit a secondary-controlled flyback system with a primary startup controller (CYPAP111) with secondary-side sensing and regulation. CYPAS111 is targeted towards mobile power adapters, it fits well into high-efficiency AC-DC flyback designs for USB Power Delivery, Qualcomm Quick Charge, and other standard charging protocols. CYPAS111 also supports USB Power Delivery (USB PD 3.0) Programmable Power Supply (PPS) mode.The interface between CYPAP111 and CYPAS111 is through a Pulse Edged Transformer and its associated circuitry.This document contains test results of PAG1P + PAG1S based 45W Power Adapter solution board. The tests were performed on this board which is equipped with Cypress CYPAP111A3-10SXQ on primary and CYPAS111A1-24LQXQ on secondary section of the converter.

Features

• Works across universal AC mains input 85 VAC to 265 VAC
• Low-side gate driver to drive primary side FET
• Line undervoltage protection (UVP) and line overvoltage protection
• Overcurrent protection (OCP)
• Overvoltage protection (OVP) during soft-start
• Programmable soft-start configurable with external capacitor
• Fixed auto-restart timer for fault recovery
• Supports X-cap discharge mode to obtain better efficiency
• Integrated high-voltage start-up and shunt regulator
• Synchronizes to PWM from secondary side using a pulse edge Transformer

Typical applications

• AC/DC applications targeting the mobile power adapter segment

More information

• Datasheet
• IC product information