USBUF:2-line EMI filter and ESD protection with R pull-up, for USB interfaces

The USB specification requires upstream ports to be terminated with pull-up resistors from the D+ and D- lines to Vbus. On the implementation of USB systems, the radiated and conducted EMI should be kept within the required levels as stated by the FCC regulations. In addition to the requirements of termination and EMC compatibility, the computing devices are required to be tested for ESD susceptibility.

The USBUF provides the recommended line termination while implementing a low pass filter to limit EMI levels and providing ESD protection which exceeds IEC 61000-4-2 level 4 standard. The device is packaged in a SOT323-6L which is the smallest available lead frame package (50% smaller than the standard SOT23).

Key Features

  • Monolithic device with recommended line termination for USB upstream ports
  • Integrated Rt series termination and Ct bypassing capacitors.
  • Integrated ESD protection
  • Small package size
  • Benefits
    • EMI / RFI noise suppression
    • Required line termination for USB upstream ports
    • ESD protection exceeding IEC 61000-4-2 level 4
    • High flexibility in the design of high density boards
    • Tailored to meet USB 1.1 standard
  • Complies with the following standards IEC 61000-4-2, level 4
    • ± 15 kV (air discharge)
    • ± 8 kV (contact discharge)
    • MIL STD 883E, Method 3015-7
    • Class 3 C = 100 pF; R = 1500 Ω
    • 3 positive strikes and 3 negative strikes (F = 1 Hz)
产品规格
DescriptionVersionSize
DS1911: EMI filter and line termination for USB upstream ports8.0188 KB
应用手册
DescriptionVersionSize
AN2348: IPAD™ 400 µm Flip Chip: package description and recommendations for use5.0261 KB
AN1235: IPAD™ 500 µm Flip Chip: package description and recommendations for use8.0251 KB
AN1847: TRANSIENT PROTECTION SOLUTIONS: Transil™ diode versus Varistor2.158 KB
Technical Notes & Articles
DescriptionVersionSize
TN1173: Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches4.0330 KB
简报
DescriptionVersionSize
USB 2.0 protection and IPAD™ solutions presentation2.0707 KB
USB type-C Power Delivery advanced protection fundamentals1.0396 KB
USB type-C™ advanced protection solutions quick start guide2.01 MB
USB type-C™ datalines and 'alternate mode' advanced protection fundamentals1.0657 KB
解决方案评估工具
型号制造商Description
STEVAL-PCC018V1UART to USB bridge
样片和购买
型号PackagePacking TypeUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
USBUF01W6SOT323-6LTape And Reel0.395100NECEAR99MALAYSIA
USBUF02W6SOT323-6LTape And Reel0.3261000NECEAR99MALAYSIA
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
USBUF01W6SOT323-6LIndustrialEcopack2md_wo-wspc-sot-wspc-323-wspc-6lds_hcwo-wspc-usbuf1c.pdf
md_wo-wspc-sot-wspc-323-wspc-6lds_hcwo-wspc-usbuf1c.xml
USBUF02W6SOT323-6LIndustrialEcopack2md_wo-wspc-sot-wspc-323-wspc-6lds_cdwo-wspc-usbuf2c_vers2_signed.pdf
md_wo-wspc-sot-wspc-323-wspc-6lds_cdwo-wspc-usbuf2c_vers2_sdm.xml
EMI filter and line termination for USB upstream ports USBUF
IPAD™ 400 µm Flip Chip: package description and recommendations for use HSP061-4M10
IPAD™ 500 µm Flip Chip: package description and recommendations for use CPL-WBF-00D3
TRANSIENT PROTECTION SOLUTIONS: Transil™ diode versus Varistor USBUF
Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches FLC21
Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches HSP061-4M10
Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches USBLC6-2
Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches USBLC6-2
Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches USBLC6-2
md_wo-wspc-sot-wspc-323-wspc-6lds_hcwo-wspc-usbuf1c.pdf USBUF
md_wo-wspc-sot-wspc-323-wspc-6lds_hcwo-wspc-usbuf1c.xml USBUF
md_wo-wspc-sot-wspc-323-wspc-6lds_cdwo-wspc-usbuf2c_vers2_signed.pdf USBUF
md_wo-wspc-sot-wspc-323-wspc-6lds_cdwo-wspc-usbuf2c_vers2_sdm.xml USBUF