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USBUF01P6_06 Datasheet

  • USBUF01P6_06

  • EMI filter and line termination for USB upstream ports

  • 9頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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USBUF01P6
IPAD鈩?/div>
EMI filter and line termination for USB upstream ports
Applications
EMI Filter and line termination for USB upstream
ports on:
鈻?/div>
鈻?/div>
USB Hubs
PC peripherals
Features
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Monolithic device with recommended line
termination for USB upstream ports
Integrated Rt series termination and C
t
bypassing capacitors.
Integrated ESD protection
Small package size
SOT-666IP
(Internal pad)
Functional diagram
3.3 V
Rt
D1
Ct
Rp
D4
Description
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 USBUF01P6 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 SOT-666 which is the
smallest available lead frame package (45%
smaller than the standard SOT323).
Grd
3.3 V
Rt
D2
Ct
D3
Complies with the following standards:
IEC 61000-4-2 level4:
15 kV(air discharge)
8 kV(contact discharge)
MIL STD 883E-Method 3015-7:
Class 3 C = 100 pF R = 1500
鈩?/div>
3 positive strikes and 3 negative strikes (F = 1 Hz)
Benefits
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
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 2.0 standard (low speed
and full speed data transmission)
Order codes
Part Number
USBUF01P6
Marking
U
TM: IPAD is a trademeark of STMicroelectronics
August 2006
Rev 6
1/9
www.st.com
9

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