Exar – XR22404/14: Industry’s Lowest Power USB 2.0 4-Port Hub Controllers

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The XR22404 is a USB 2.0, 4-port hub that can be configured for downstream device charging and is compatible with Battery Charging specification revision 1.1/1.2. It operates from either 3.3V or 5V supply allowing bus- or self-powered operation without an external LDO. It is available in a tiny 4 x 4mm, 24-pin QFN or a 28-pin SSOP. The XR22414 is a USB 2.0, 4-port hub using multiple transaction translators (MTT) for highest bandwidth capability. It provides ganged or individual power control as well as global or individual overcurrent sensing modes. Operating from either a 5V or 3.3V supply allows for bus- or self-powered operation without an external LDO. The XR22414’s 3.3V output may be used for external circuitry if the device is powered by 5V. It is available in a 6 x 6mm 48-pin QFN or a 9 x 9mm 48-pin LQFP.

FEATURES
• Single 5V and/or 3.3V power supply
• Individual or ganged port power enable and overcurrent sensing (XR22414)
• 4 port multiple transaction translators (MTT) (XR22414)
• Ganged port power enable and global overcurrent sensing (XR22404)
• LED indicators for port and hub activity
• Single 12MHz crystal
• Regulated +3.3V power output up to 100mA
• QFN24 or SSOP28 package (XR22404)
• 48-pin QFN and LQFP package (XR22414)
• 1k MSRP: starts at $0.89

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