DATASHEET ISL54227 FN7593 Rev 1.00 High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP) September 5, 2013 and Dedicated Charger Port Detection The Intersil ISL54227 is a single supply, dual SPST (Single Features Pole/Single Throw) switch that is configured as a DPST. It can High-speed (480Mbps) and full-speed (12Mbps) signaling operate from a single 2.7V to 5.25V supply. The part was capability per USB 2.0 designed for switching or isolating a USB high-speed source or a USB high-speed and full-speed source in portable battery 1.8V logic compatible (2.7V to +3.6V supply) powered products. Alarm overvoltage indicator output The 3.5SPST switches were specifically designed to pass USB Charger interrupt indicator output full speed and USB high speed data signals. They have high Low power state bandwidth and low capacitance to pass USB high speed data signals with minimal distortion.The device has two logic control Power OFF protection input pins (OE and LP) to control the SPST switches. COM pins overvoltage detection and protection for +5.25V and -5V fault voltages The ISL54227 has OVP detection circuitry on the COM pins to open the SPST switches when the voltage at these pins -3dB Frequency . 790MHz exceeds 3.8V or goes negative by -0.45V. It isolates fault Low ON capacitance 240MHz . 2pF voltages up to +5.25V or down to -5V from getting passed to the other side of the switch, thereby protecting the USB down- Low ON-resistance . 3.5 stream transceiver. It has an alarm indicator output pin (ALM) Single supply operation (V ) . 2.7V to 5.25V DD to indicate when the part is in the overvoltage condition. Available in TQFN and TDFN packages The part has an interrupt (INT) output pin to indicate a 1-to-1 Pb-Free (RoHS compliant) (high/high) state on the COM lines to inform the processor Compliant with USB 2.0 short circuit and overvoltage when entering a dedicated charging port mode of operation. requirements without additional external components The ISL54227 is available in 10 Ld 1.8mmx1.4mm TQFN and 10 Ld 3mmx3mm TDFN packages. It operates over a Applications) temperature range of -40C to +85C. MP3 and other Personal Media Players Cellular/Mobile Phones, PDAs Digital Cameras and Camcorders USB Switching 3.3V 500 VDD INT ALM LOGIC LP P CONTROL OE V BUS D- D- COM- USB HIGH-SPEED OVP TRANSCEIVER D+ D+ COM+ ISL54227 GND GND TIME SCALE (0.2ns/DIV) FIGURE 1. TYPICAL APPLICATION FIGURE 2. USB 2.0 HS EYE PATTERN WITH SWITCHES IN THE SIGNAL PATH FN7593 Rev 1.00 Page 1 of 18 September 5, 2013 USB CONNECTOR VOLTAGE SCALE (0.1V/DIV)ISL54227 Pin Configurations ISL54227 ISL54227 (10 LD 1.8X1.4 TQFN) (10 LD 3X3 TDFN) TOP VIEW TOP VIEW ALM D- PD 7 6 INT 1 VDD 10 LP 9 OE OE 5 2 LOGIC 8 LOGIC COM- 4M OVP D+ GND 3 4M 8 ALM VDD 9 4 10 3 COM+ COM+ INT 4 7 D- OVP GND 5 6 COM- 4M 4M 1 2 LP D+ NOTE: 1. Switches Shown for OE = 0. Pin Descriptions Truth Table PIN INPUT OUTPUT TQFN TDFN NAME DESCRIPTION SIGNAL AT COM D-, 12 LP Low Power Input PINS LP OE D+ INT ALM STATE 2 3 D+ USB Data Port 0V to 3.6V 0 0 OFF High High Normal 34 COM+ USB Data Port 0V to 3.6V 0 1 ON High High Normal 45 GND Ground Connection 0V to 3.6V 1 0 OFF High High Low Power 56 COM- USB Data Port Overvoltage 01 OFF High Low OVP Range 6 7 D- USB Data Port 3.65V to 5.25V -0.29V to -5V 78 ALM OVP ALARM Interrupt Output COM Pins Tied 0 0 OFF Low High Charger Port (CP) 89 OE Switch Enable Together 910 VDD Power Supply COM Pins Tied 1 0 OFF Low High Charger Port 10 1 INT Charger Mode Interrupt Output Together (Low Power) - PD PD Thermal Pad. Tie to Ground or Float Logic 0 when 0.5V, Logic 1 when 1.4V with a 2.7V to 3.6V Supply. TABLE 1. OVP TRIP POINT VOLTAGE SYSTEM VOLTAGE CONDITIONS TRIP POINT CODEC SUPPLY SWITCH SUPPLY (V ) COMs SHORTED TO PROTECTED MIN MAX DD 2.7V to 3.3V 2.7V to 5.25V VBUS Yes 3.62V 3.95V 2.7V to 3.3V 2.7V to 5.25V -5V Yes -0.6V -0.29V FN7593 Rev 1.00 Page 2 of 18 September 5, 2013