DATASHEET
ISL54226 FN7614
Rev 2.00
Aug 15, 2016 High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP)
and Dedicated Charger Port Detection
The ISL54226 is a single supply, dual SPST (Single Pole/Single
Throw) switch that is configured as a DPST. It can operate from a
single 2.7V to 5.25V supply. The part was designed for switching
or isolating a USB high-speed source or a USB high-speed and
full-speed source in portable battery powered products. Features The 3.5О©пЂ SPST switches were specifically designed to pass USB
full speed and USB high-speed data signals. They have high
bandwidth and low capacitance to pass USB high-speed data
signals with minimal distortion. OE/ALM pin to open all switches and indicate overvoltage
fault condition The ISL54226 has OVP detection circuitry on the COM pins to
open the SPST switches when the voltage at these pins
exceeds 3.8V or goes negative by -0.45V. It isolates fault
voltages up to +5.25V or down to -5V from getting passed to
the other side of the switch, thereby protecting the USB downstream transceiver.
The OE/ALM logic pin is an open drain input/output that can
be driven to open the switches or monitored to tell when the
part is in an overvoltage state. High-speed (480Mbps) and full-speed (12Mbps) signaling
capability per USB 2.0 1.8V logic compatible (2.7V to +3.6V supply) Charger interrupt indicator output Power OFF protection COM pins overvoltage protection for +5.25V and -5V fault
voltages -3dB frequency . 790MHz Low ON capacitance @ 240MHz . 2pF Low ON-resistance . 3.5О© Single supply operation (VDD) . 2.7V to 5.25V Available in ВµTQFN and TDFN packages The part has an interrupt (INT) output pin to indicate a 1 to 1 …