MAX14644

USB Host Adapter Emulators

Most Advanced USB Host Adapter Emulators Especially Optimized for PCs


Please check latest availability status for a specific part variant.

Description

The MAX14640–MAX14644/MAX14651 are next-generation USB 2.0 host charger adapter emulators that combine USB Hi-Speed analog switches with a USB adapter emulator circuit.

The MAX14640/MAX14651 feature an I2C interface to fully configure the charging behavior with different address options. The MAX14641–MAX14644 are controlled by two GPIO inputs (CB1/CB0) and support USB data and automatic charger mode. In charging downstream port (CDP) pass-through mode, the devices emulate the CDP function while supporting normal USB traffic. The MAX14641/MAX14642/MAX14643 have a CEN output for an active-high CLS enable input, and the MAX14644 has an active-low CEN output for an active-low CLS enable input to restart the peripheral connected to the USB host.

The MAX14640–MAX14644/MAX14651 feature 2A high-current autodetect mode. The MAX14641 features 1A high-current forced mode instead of regular DCP mode. The MAX14640/MAX14651 can be configured through I2C to support various dedicated charger modes such as DCP, Apple® 1A/2A forced, or Apple 1A/2A automatic mode.

All the devices 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 devices support low-speed remote wake-up by monitoring DM, and the MAX14642 also supports remote wake-up in sleep mode (S3).

The MAX14640–MAX14644/MAX14651 are available in an 8-pin (2mm x 2mm) TDFN-EP package and are specified over the -40°C to +85°C extended temperature range.

MAX14640, MAX14641, MAX14642, MAX14643, MAX14644, MAX14651: Functional Diagram MAX14640, MAX14641, MAX14642, MAX14643, MAX14644, MAX14651: Functional Diagram Enlarge+

Key Features

  • Improved Charger Interoperability
    • USB (CDP) Emulation
      • Smart CDP
      • 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 Apple BC Revision 1.2 Compatible Devices
  • Provide Greater Application Flexibility
    • I2C Controls Multiple Modes (MAX14640/MAX14651)
    • CB0 and CB1 Pins Control Multiple Automatic and Manual Charger States
  • 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
  • Minimize PCB Area
    • 2mm x 2mm, 8-Pin TDFN Package

Applications/Uses

  • Laptop/Desktop Computers
  • Universal Chargers Including iPod®/iPhone®/iPad®
  • USB Hubs
Part NumberSupported Charging ConfigurationsSupported USB Battery Charging SpecificationCharging ModesCurrent Limit Switch ControlCDP EmulationRemote Wake-Up SupportVBUS Reset Time
(sec)
Package/PinsBudgetary
Price
typSee Notes
MAX14640 
Apple 0.5A
Apple 1.0A
Apple 2.1A
China YD/T 1591-2009
USB CDP
USB Dedicated Charger
USB SDP
1.2
Auto Detection
Auto Detection with Apple 2A
CDP Emulation Pass-Through
Forced Dedicated Charger
Pass-Through
BothYesYes1
TDFN-CU/8
$1.89 @1k
MAX14641 
Auto Detection
Auto Detection with Apple 2A
CDP Emulation Pass-Through
Pass-Through
CEN
TDFN/8
$1.77 @1k
MAX14642 
Auto Detection
CDP Emulation Pass-Through
Pass-Through
CEN
TDFN/8
-
MAX14644 
Auto Detection with Apple 2A
CDP Emulation Pass-Through
Forced Dedicated Charger
Pass-Through
/CEN
TDFN/8
-
MAX14651 
Auto Detection
Auto Detection with Apple 2A
CDP Emulation Pass-Through
Forced Dedicated Charger
Pass-Through
Both
TDFN/8
$1.89 @1k
See All USB Host Adapter Emulator (21)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Technical Documents

Tutorial 5801 Overview of USB Battery Charging Revision 1.2 and the Important Role of Adapter Emulators

Quality and Environmental Data

Request Reliability Report for: MAX14644 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX14644ETA+
  • MAX14644ETA+CNE
  • MAX14644ETA+T
  • MAX14644ETA+TCNE
  • MAX14644ETA/V+
  • MAX14644ETA/V+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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