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USB Host Charger Identification Analog Switch

Enables USB Charging and Hi-Speed USB Switching

Product Details

Key Features

Simplified Block Diagram

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Sampling:
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Key Features

  • USB 2.0 Hi-Speed Switching
  • Low 4.0pF On-Capacitance
  • Low 4.0Ω On-Resistance
  • Ultra-Low 0.1Ω On-Resistance Flatness
  • +2.8V to +5.5V Supply Range
  • Ultra-Low 7µA Supply Current
  • Automatic USB Charger Identification Circuit
  • Optional External Resistor-Divider with Auto Selection
  • ±15kV High ESD HBM Protection on DP/DM
  • 3mm x 3mm, 10-Pin TDFN Package

Applications/Uses

  • Cell Phones
  • Laptops
  • Netbooks

Description

The MAX14550E is a USB Hi-Speed analog switch with a USB host charger (dedicated charger) identification circuit. The MAX14550E supports both the USB Battery Charging Specification Revision 1.0 and a set resistor bias for Apple®-compliant devices.

The MAX14550E features a high-performance Hi-Speed USB switch with low 4pF (typ) on-capacitance and low 4Ω (typ) on-resistance. In addition, the MAX14550E features two digital inputs (CB0 and CB1) to switch between pass-through and charger modes. The USB host charger identification circuit allows a host USB port to support USB chargers with shorted D+/D- detection and to provide support for Apple-compliant devices using a resistor bias. When an Apple-compliant device is attached to the port, the MAX14550E provides the voltage from the resistor-divider. The MAX14550E uses the internal or external resistor based on the voltage at RDP. If a USB Revision 1.0-compliant device is attached, the MAX14550E connects a short across DP and DM to allow correct charger detection. The MAX14550E autodetection circuit can be disabled and either a DP/DM short or resistor network is chosen as the default.

The MAX14550E has enhanced high electrostatic discharge (ESD) protection on the DP and DM inputs up to ±15kV Human Body Model (HBM).

The MAX14550E is available in a 10-pin (3mm x 3mm) TDFN package and is specified over the -40°C to +85°C extended temperature range.

Simplified Block Diagram

MAX14550E MAX14550E Zoom icon

Technical Docs

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 .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.