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Dual-Channel USB Host Adapter Emulators

Enable 2-Channel, High-Current USB Charging with Flexible Power Management Control and I2C

Product Details

The MAX14657/MAX14658/MAX14659 are next-generation dual-channel USB 2.0 host-charger adapter emulators that combine USB Hi-Speed analog switches with a USB adapter emulator circuit.

The MAX14657 features an I2C interface to fully configure the charging behavior with different address options. The MAX14658/MAX14659 are controlled by two GPIO inputs (CB1_/CB0_) and support USB data and automatic charger mode. In charging downstream port (CDP) mode, the devices emulate the CDP function while supporting normal USB traffic. The MAX14657/MAX14658 have a CEN_ output for an active-high CLS enable input, and the MAX14659 has an active-low CEN_ output for an active-low CLS enable input to restart the peripheral connected to the USB host.

The MAX14658/MAX14659 feature 2A high-current autodetect mode. The MAX14657 can be configured through I2C to support various dedicated charger modes such as Apple 1A/2A forced, or Apple or Samsung 1A/2A autodetect modes.

The MAX14657/MAX14658/MAX14659 support CDP and standard downstream port (SDP) charging while in the active state (S0), and support the dedicated charging port (DCP) charging while in the standby state (S3/S4/S5). All of the devices support low-speed remote wake-up by monitoring DM_, and also support remote wakeup in sleep mode (S3).

The MAX14657/MAX14658/MAX14659 are available in a 16-pin (3mm x 3mm) TQFN-EP package and are specified over the -40°C to +85°C extended temperature range.

Key Features

  • Integrated Dual Channels
    • More Convenient, High-Current USB Charging Ports for Users
    • Simple and Flexible Power-Management Control
    • Small TQFN Package Minimizes PCB Area
  • Improved Charger Interoperability
    • USB (CDP) Emulation with Smart CDP and Fool-Proof CDP
    • Enhanced Automodes
    • Foolproof CDP
    • Meets New USB Battery Charging (BC) Revision 1.2 Specification
    • Backward Compatible with Previous USB BC Revisions
    • Meets China YD/T1591-2009 Charging Specification
    • Supports Standby-Mode Charging for USB BC Revision 1.2 Compatible Devices
  • Provide Greater Application Flexibility
    • I2C Controls Multiple Modes (MAX14657)
    • A Slave Address Selection Input Offers Two Possible Slave Addresses for Each Emulator (MAX14657)
    • CB0_ and CB1_ Pins Control Multiple Automatic and Manual Charger States (MAX14658, MAX14659)
  • Enhance Performance with High Level of Integrated Features
    • Supports Remote Wake-Up
    • Low-Capacitance USB 2.0 Hi-Speed Switch to Change Charging Modes
    • Automatic Current-Limit Switch Control
    • ±15kV ESD Protection on DP_/DM_

Applications/Uses

  • Laptop/Desktop Computers
  • Universal Chargers Including iPod®/iPhone®/iPad®
  • USB Hubs

Simplified Block Diagram

MAX14657, MAX14658, MAX14659: Typical Operating Circuit MAX14657, MAX14658, MAX14659: Typical Operating Circuit Zoom icon

Technical Docs

Data Sheet Dual-Channel USB Host Adapter Emulators Aug 20, 2013

Design & Development

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Support & Training

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Parameters

Key Features

  • Integrated Dual Channels
    • More Convenient, High-Current USB Charging Ports for Users
    • Simple and Flexible Power-Management Control
    • Small TQFN Package Minimizes PCB Area
  • Improved Charger Interoperability
    • USB (CDP) Emulation with Smart CDP and Fool-Proof CDP
    • Enhanced Automodes
    • Foolproof CDP
    • Meets New USB Battery Charging (BC) Revision 1.2 Specification
    • Backward Compatible with Previous USB BC Revisions
    • Meets China YD/T1591-2009 Charging Specification
    • Supports Standby-Mode Charging for USB BC Revision 1.2 Compatible Devices
  • Provide Greater Application Flexibility
    • I2C Controls Multiple Modes (MAX14657)
    • A Slave Address Selection Input Offers Two Possible Slave Addresses for Each Emulator (MAX14657)
    • CB0_ and CB1_ Pins Control Multiple Automatic and Manual Charger States (MAX14658, MAX14659)
  • Enhance Performance with High Level of Integrated Features
    • Supports Remote Wake-Up
    • Low-Capacitance USB 2.0 Hi-Speed Switch to Change Charging Modes
    • Automatic Current-Limit Switch Control
    • ±15kV ESD Protection on DP_/DM_

Applications/Uses

  • Laptop/Desktop Computers
  • Universal Chargers Including iPod®/iPhone®/iPad®
  • USB Hubs

Description

The MAX14657/MAX14658/MAX14659 are next-generation dual-channel USB 2.0 host-charger adapter emulators that combine USB Hi-Speed analog switches with a USB adapter emulator circuit.

The MAX14657 features an I2C interface to fully configure the charging behavior with different address options. The MAX14658/MAX14659 are controlled by two GPIO inputs (CB1_/CB0_) and support USB data and automatic charger mode. In charging downstream port (CDP) mode, the devices emulate the CDP function while supporting normal USB traffic. The MAX14657/MAX14658 have a CEN_ output for an active-high CLS enable input, and the MAX14659 has an active-low CEN_ output for an active-low CLS enable input to restart the peripheral connected to the USB host.

The MAX14658/MAX14659 feature 2A high-current autodetect mode. The MAX14657 can be configured through I2C to support various dedicated charger modes such as Apple 1A/2A forced, or Apple or Samsung 1A/2A autodetect modes.

The MAX14657/MAX14658/MAX14659 support CDP and standard downstream port (SDP) charging while in the active state (S0), and support the dedicated charging port (DCP) charging while in the standby state (S3/S4/S5). All of the devices support low-speed remote wake-up by monitoring DM_, and also support remote wakeup in sleep mode (S3).

The MAX14657/MAX14658/MAX14659 are available in a 16-pin (3mm x 3mm) TQFN-EP package and are specified over the -40°C to +85°C extended temperature range.

Simplified Block Diagram

MAX14657, MAX14658, MAX14659: Typical Operating Circuit MAX14657, MAX14658, MAX14659: Typical Operating Circuit Zoom icon

Technical Docs

Data Sheet Dual-Channel USB Host Adapter Emulators Aug 20, 2013

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal