High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP) and Overvoltage Indicator Output
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Overview
Description
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 Single Pole/Double Throw (SPDT) switches configured as a DPDT. The part was designed for switching of USB data signals in portable battery-powered products. The 6.5Ω 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. The ISL54224 has overvoltage protection (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 to facilitate proper bus disconnect and connection when switching between the USB sources. The ISL54224 is available in 10 Ld 1.8mm x 14mm µTQFN and 10 Ld TDFN packages. It operates over a temperature range of -40 °C to +85 °C.
Features
- High-speed (480Mbps) and full-speed (12Mbps) signaling capability per USB 2.0
- 1.8V logic compatible (2.7V to +3.6V supply)
- OE/ALM pin to open all switches and indicate overvoltage fault condition
- Power OFF protection
- D-/D+ pins overvoltage protection for +5.25V and -5V fault voltages
- -3dB frequency: 780MHz
- Low ON capacitance at 240MHz: 3.3pF
- Low ON-resistance: 6.5Ω
- Single supply operation (VDD): 2.7V to 5.25V
- Available in µTQFN and TDFN packages
- Pb-free (RoHS compliant)
- Compliant with USB 2.0 short circuit and overvoltage requirements without additional external components
Applications
Applications
- MP3 and other personal media players
- Cellular/mobile phones
- PDAs
- Digital cameras and camcorders
- USB switching
Design & Development
Boards & Kits
Boards & Kits
High-Speed USB 2.0 (480Mbps) Multiplexer or Switch Evaluation Board
The ISL54224IRTZEVAL1Z evaluation board is used to evaluate the ISL54224 Single Pole/Double Throw (SPDT) multiplexer.
The ISL54224IRTZEVAL1Z evaluation board...
Featured Documents:
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Product Options
Processing table
ISL54224IRTZ Active Samples Available |
TDFN | Tube | 4000 | Get Samples, |
ISL54224IRTZ-T Active Samples Available |
TDFN | Reel | 6000 | Get Samples, |
ISL54224IRUZ-T Active Samples Available |
uTQFN | Reel | 3000 | Get Samples, |
ISL54224IRUZ-T7A Active Samples Available |
uTQFN | Reel | 250 | Get Samples, |
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