MAX14566BE

USB Host Charger Identification Analog Switches

Industry's First and Smallest USB BC1.1 Host ID Switch for USB Power Ports

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Overview

Hi-Speed USB Switching
Low 4.0pF (typ) On-Capacitance
Low 4.0Ω (typ) On-Resistance
Ultra-Low 0.1Ω (typ) On-Resistance Flatness
+2.8V to +5.5V Supply Range
Ultra-Low 3µA (typ) Supply Current
Automatic Current-Limit Switch Control
Automatic USB Charger Identification Circuit
±15kV High ESD HBM Protection On DP/DM
2mm × 2mm 8-pin TDFN Package
-40°C to +85°C Operating Temperature Range

The MAX14566E/MAX14566AE/MAX14566BE are second-generation USB devices that combine Hi-Speed USB analog switches with a USB host charger (dedicated charger) identification circuit. These devices support both the latest USB Battery Charging Specification Revision 1.2 including data contact detection and a set resistor bias for Apple-compliant devices as well as legacy USB D+/D- short detection using data line pullup. The MAX14566E has a pMOSFET open-drain control output (active-low CEN) and the MAX14566AE has an nMOSFET open-drain control output (CEN) to restart the peripheral connected to the USB host.

These devices feature high-performance Hi-Speed USB switches with low 4pF (typ) on-capacitance and low 4.0Ω (typ) on-resistance. In addition, the devices feature a single digital input (CB) to switch between pass-through mode and autodetection charger mode. The USB host charger identification circuit allows a host USB port to support USB chargers with shorted DP/DM detection and to provide support for Apple-compliant devices using a resistor bias on USB data lines. When an Apple-compliant device is attached to the port in autodetection charger mode, the devices supply the voltage to the DP and DM lines from the internal resistor-divider. If a USB Revision 1.2-compliant device is attached, the devices short DP and DM to allow correct charger detection. The MAX14566BE features an additional digital input (CB1) to allow forced charger mode.

These devices have enhanced, high electrostatic discharge (ESD) protection on the DP and DM inputs up to ±15kV Human Body Model (HBM). All the devices are available in an 8-pin (2mm x 2mm) TDFN package and are specified over the -40°C to +85°C extended temperature range.

Applications

Laptops
Netbooks
Universal Charger Including iPod®/iPhone® Chargers

Documentation

Data Sheet 1

MAX14566AE-MAX14566E: USB Host Charger Identification Analog Switches Data Sheet (Rev.1) 04/07/2011

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Evaluation Kits

Evaluation Kit for the MAX14566AE, MAX14566BE, and MAX14566E

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Features and Benefits

Hi-Speed USB (480Mbps)
90Ω Differential Traces for USB 2.0
USB Powered or Externally Powered for Higher Charging Currents
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX14566E evaluation kit (EV kit) provides a proven design to evaluate the MAX14566E USB device that combines a Hi-Speed USB analog switch with a USB adapter emulator. The Hi-Speed USB transmission lines (D+/D-) have 90Ω differential impedance traces to meet Hi-Speed USB specifications.

The EV kit comes with the MAX14566EETA+ installed, but can also be used to evaluate the MAX14566AE and MAX14566BE with IC replacement of U1.