DATASHEET
ISL54224
High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP)
and Overvoltage Indicator Output FN6969
Rev 1.00
September 19, 2013 The ISL54224 is a single supply dual 2:1 multiplexer that can
operate from a single 2.7V to 5.25V supply. It contains two SPDT
(Single Pole/Double Throw) switches configured as a DPDT. The
part was designed for switching of USB data signals in portable
battery powered products. Features The 6.5О©пЂ switches were specifically designed to pass USB high
speed/full 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 ISL54224 has OVP circuitry on the D-/D+ com pins that
opens the USB in-line switches when the voltage at these pins
exceeds 3.8V (typ) or goes negative by -0.5V (typ). 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
transceivers.
The digital logic inputs are 1.8V logic compatible when operated
with a 2.7V to 3.6V supply. The ISL54224 has an open drain
OE/ALM pin that can be driven Low to open all switches and
outputs a Low when the OVP circuitry is activated. It can be used …