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PAG1: Power Adapter Generation 1 | Cypress Semiconductor

PAG1: Power Adapter Generation 1

The PAG1 is a complete AC-DC power solution with an integrated USB Power Delivery (PD) controller that enables OEMs to build reliable, efficient, and cost-effective power adapters for the growing USB-C charger market. PAG1 is offered as a two-chip solution with a primary start-up controller (PAG1P) and a single-chip secondary-side controller (PAG1S) that integrates a synchronous rectification driver, PD controller, 30-V-tolerant regulator, high-voltage NFET gate drivers, OVP, SCP, and OCP protection. PAG1 is a secondary-side-controlled flyback solution that supports dynamically variable switching frequency thereby providing best-in-class efficiency and better reliability.

For more details, please contact your local Cypress Sales team.

Cypress’ PAG1P is a primary start-up controller for AC/DC applications. It is designed to work with PAG1S in a secondary-controlled AC/DC flyback converter topology where-in the PAG1S device performs the voltage and current regulation, while PAG1P provides the start-up function, drives the primary FET and responds to fault conditions. PAG1P also supports X-cap discharge mode to achieve better efficiency.

PAG1P Features:

  • Works across universal AC mains input 85 VAC to 265 VAC
  • Low-side gate driver to drive primary side FET
  • Protection against line under-voltage and over-voltage
  • Overcurrent protection against load short-circuit
  • Secondary overvoltage protection
  • Programmable soft-start configurable with external capacitor
  • Fixed auto-restart timer for fault recovery
  • Supports X-cap discharge mode to achieve better efficiency
  • Integrated high-voltage start-up and shunt regulator
  • Synchronizes to PWM from secondary side using a Pulse Edge Transformer

For more details, please contact your local Cypress Sales team.

Cypress’ PAG1S is a single-chip, secondary-side controller targeted towards mobile chargers that integrates a synchronous rectification driver, PD controller, and a wide range of protection circuits. The controller is flexibly designed to support a traditional primary-controlled flyback architecture, as well as a more-efficient secondary-controlled flyback architecture with a simple primary start-up controller. PAG1S helps you to design leading-class, high-performance mobile chargers at reduced BOM costs.

PAG1S is targeted for USB-C mobile chargers and fits well into high-efficiency AC-DC flyback designs for USB Power Delivery (including PPS), Qualcomm Quick Charge, and other popular charging protocols. PAG1S is an ideal solution if you are designing a:

  • USB PD 3.0 PPS mobile charger
  • QC 4+ Mobile charger
  • Mobile chargers supporting both USB PD and legacy charging

EZ-PD™ PAG1S Product Features:

  • USB PD 3.0 with PPS and QC4.0+
  • Works with both primary-side controlled and secondary- side controlled fly back designs
  • Integrates secondary-side regulation, synchronous rectifier (SR), and charging port controller
  • Higher-efficiency across line and load levels with better CC/CV loop control
  • Supports Quasi-Resonant (QR) or Critical Conduction Mode (CrCM), valley switching, Discontinuous Conduction Mode (DCM), and burst mode for light load operations
  • Switching frequency range of 20KhZ to 150kHZ
  • Supports USB PD2.0, PD 3.0 with PPS, QC4+, QC 4.0, QC 3.0,QC 2.0, Samsung AFC, Apple charging, and BC v1.2 charging protocols
  • Supports Constant Voltage (CV) and Constant Current (CC) modes of operation.
  • Configurable overvoltage protection (OVP), undervoltage protection (UVP), overcurrent protection (OCP), short circuit protection (SCP), and over-temperature protection (OTP)
  • Integrates low-side current sense amplifier (LSCSA), 2x VBUS discharge FETs, and a NFET gate driver to drive the load switch.
  • Available in a 24 QFN (4x4) package

For more details, please contact your local Cypress Sales team.

Document Type Title
Roadmap USB Roadmap
Reference Designs PAG1P/PAG1S Reference Designs
Datasheet Contact Sales

USB Type-C Specification

USB Type-C is the new USB-IF standard that solves several challenges faced by today's Type-A and Type-B cables and connectors. USB Type-C uses a slimmer connector (measuring only 2.4-mm in height) to allow for increasing miniaturization of consumer and industrial products. The specification allows for fully reversible plugs and enables transport of both USB signals and PCIe or DisplayPort signals on the same connector. The Type-C specification also increases the power delivery capability from 7.5 W to 100 W.

USB 3.1 specification (including Type-C)

USB Power Delivery

The New USB Type-C Cable