USB Host Charger Identification Analog Switch

Enables USB Charging and Hi-Speed USB Switching


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.
MAX14550E MAX14550E Enlarge+

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


  • Cell Phones
  • Laptops
  • Netbooks
Part Number Protocol Channels VSUPPLY (Single)
VSUPPLY (Single)
Dynamic Range (max)
Package/Pins Budgetary
min max min max max max typ max min max See Notes
MAX14550E  USB High-Speed 2 2.8 5.5 0 5.5 5.5 6.5 0.1 1000 250 100000 5000 5.5 2
$1.79 @1k
See All Switches and Multiplexers (Low Voltage) (169)
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.

Part Number Supported Charging Configurations Supported USB Battery Charging Specification Charging Modes CDP Emulation Remote Wake-Up Support Package/Pins Budgetary
See Notes
Apple 0.5A
Apple 1.0A
China YD/T 1591-2009
USB Dedicated Charger
Auto Detection
Custom External D+ and D- Configuration
No No
$1.79 @1k
See All USB Host Adapter Emulator (20)

MAX14550EEVKIT: Evaluation Kit for the MAX14550E

Quality and Environmental Data

Product Reliability Reports: MAX14550E.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Additional Resources

Topmark Coding MAX14550E

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