USB3503

As portable devices continue to add more features and the system architecture becomes more complex, it is necessary to have more than one USB port to manage communications with internal and external peripheral devices. Microchip's low-power USB3503 offers three downstream ports and is specifically designed for portable embedded applications where more than one USB port is required. The USB3503 attaches to an upstream port via HSIC and supports Low, Full and Hi-Speed downstream devices on all enabled downstream ports. The package size has been minimized to save valuable PCB space, making the device well-suited for portable, battery-powered embedded systems where power consumption, reduced BOM cost and Battery Charger (BC) detection capabilities are critical design requirements.

The USB3503 is the industry's first HSIC-based USB 2.0 hub controller designed specifically for portable consumer electronics products such as smartphones, tablets and e-readers. Designed to deliver the low-power and ultra-small footprint that portable product designers demand, the USB3503 also delivers robust USB performance proven through multiple generations of Microchip USB 2.0 hub controller products.

The USB3503 integrates the latest USB-IF Battery Charging 1.1 specification with Microchip's RapidCharge Anywhere™ functionality that dramatically reduces the time required for battery charging, while its flexible power regulators facilitate simple design into battery-powered devices. Microchip's complimentary and confidential USBCheck™ online design review service is available for customers who select the USB3503 for their application design-in.*

Features
  • Integrated USB 2.0-compatible 3-port hub
  • HSIC upstream port
  • Advanced power saving features including 1μA standby current
  • USB-IF BC 1.1 detection
  • Supports Single-TT or Multi-TT configurations for Full and Low-Speed connections
  • Enhanced configuration options available through serial I2C slave port
  • Internal default configuration option when serial I2C host is not available
  • Incorporates proprietary Microchip technologies: MultiTRAK™, PortMap, PortSwap, PHYBoost, VariSense™ and flexPWR®
  • External 12, 19.2, 24, 25, 26, 27, 38.4 or 52MHz clock inputs
  • Internal 3.3V and 1.2V voltage regulators for single supply operation
  • USB Port ESD Protection (DP/DM) up to ±15kV (IEC 61000-4-2)
  • Commercial (0° to 70°C) and industrial (-40° to 85°C) temperature range options
  • 25-ball WLCSP, (1.97mm x 1.97mm) - 0.4mm ball pitch RoHS-compliant package
  • 32-pin SQFN (5.0 mm x 5.0 mm) Package
  • Mobile Phones
  • Tablet Computers
  • Ultra-mobile PCs
  • e-Readers
  • Digital Still Cameras
  • Digital Video Camcorders
  • Gaming Consoles
  • PDAs
  • Portable Media Players
  • GPS Personal Navigation Devices
  • Media Players/Viewers
Parameter
Parameter Name Value Value
Upstream Port HSIC HSIC
USB Speed USB 2.0 USB 2.0
Downstream Ports 3 3
MGMT I/F I2C I2C
Op Voltage (V) 3.3 3.3
MultiTRAK Tech Yes Yes
PortMap Yes Yes
PortSwap Yes Yes
PHYBoost Yes Yes
Temp. Range Min. -40 -40
Temp. Range Max. 85 85
Documents
USB3503 USB 2.0 HSIC High-Speed Hub Controller Optimized for Portable ApplicatioData Sheets03/31/20151550KB
AN 26.2 - Implementation Guidelines for Microchip's USB 2.0 and USB 3.0 Hub DevicesAppNote08/11/20151203KB
AN1586 - USB3503 Low Power ConfigurationsAppNote11/05/20131133KB
AN1602 - Introduction to HSICAppNote12/10/2013375KB
AN26.21 - USB Device Design ChecklistAppNote08/10/2015386KB
EVB-USB3503 Configuration SoftwareSoftware02/03/2015472KB
USB3503IBIS10/11/2013146KB
USB3503 IBIS ModelIBIS02/15/2014146KB
EVB-USB3503 Evaluation Board User ManualUser Guides05/05/20131887KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
USB3503/ML32QFN0C to +70CTRAY2.482.071.881.821.80
USB3503A-1-GL-TR25WLCSP0C to +70CT/R2.482.071.881.821.80
USB3503AI-1-GL-TR25WLCSP-40C to +85CT/R3.352.802.542.452.43
USB3503-I/ML32QFN-40C to +85CTRAY3.352.802.542.452.43
USB3503T/ML32QFN0C to +70CT/R2.482.071.881.821.80
USB3503T-I/ML32QFN-40C to +85CT/R3.352.802.542.452.43
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RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
USB3503T-I/ML0.0678000.18575832QFN5x5x0.9mmMatte Tine3
USB3503T/ML0.0678000.18575832QFN5x5x0.9mmMatte Tine3
USB3503-I/ML0.0678000.71428632QFN5x5x0.9mmMatte Tine3
USB3503/ML0.0678000.71428632QFN5x5x0.9mmMatte Tine3
USB3503AI-1-GL-TR0.0094500.04000025WLCSP1.97x1.97x0.57SACe1
USB3503A-1-GL-TR0.0094500.04000025WLCSP1.97x1.97x0.57SACe1
USB3503 USB 2.0 HSIC High-Speed Hub Controller Optimized for Portable Applicatio USB3503
AN 26.2 USB4640
AN1586 USB3503
AN1602 USB4640
AN26.21 USB3751A-2
EVB-USB3503 Configuration Software USB3503
EVB-USB3503 Evaluation Board User Manual USB3503
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