USBDFXXW5 반도체 회로 부품 판매점
EMI FILTER AND LINE TERMINATION FOR USB DOWNSTREAM PORTS
|
|
 STMicroelectronics |
®
A.S.D.™
USBDFxxW5
EMI FILTER AND LINE TERMINATION
FOR USB DOWNSTREAM PORTS
APPLICATIONS
EMI Filter and line termination for USB down-
stream ports on:
- Desktop computer
- Notebooks
- Workstations
- USB Hubs
FEATURES
n Monolithic device with recommended line termi-
nation for USB downstream ports
n Integrated Rt series termination and Ct bypass-
ing capacitors.
n Integrated ESD protection
n Small package size
DESCRIPTION
The USB specification requires USB
downstream ports to be terminated with
pull-down resistors from the D+ and D- lines to
ground. 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 USBDFxxW5 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 SOT323-5L which is
the smallest available lead frame package (50%
smaller than the standard SOT23).
BENEFITS
n EMI / RFI noise suppression
n Required line termination for USB downstream
ports
n ESD protection exceeding IEC61000-4-2 level 4
n High flexibility in the design of high density
boards
n Tailored to meet USB 1.1 standard
TM: ASD and TRANSIL are a trademarks of STMicroelectronics.
May 2000 Ed : 1C
SOT323-5L
FUNCTIONAL DIAGRAM
D+ In
Gnd
D- In
Rt
Ct Rd
Ct Rd
Rt
Code 01
Code 02
Tolerance
Rt
33Ω
15Ω
±10%
Rd
15kΩ
15kΩ
±10%
D+ Out
D- Out
Ct
47pF
47pF
±20%
1/9
USBDFxxW5
COMPLIES WITH THE FOLLOWING ESD
STANDARDS:
IEC-61000-4-2, level 4
±15 kV (air discharge)
±8 kV (contact discharge)
MIL STD 883C, Method 3015-6
Class 3 C = 100 pF R = 1500 Ω
3 positive strikes and 3 negative strikes (F = 1 Hz)
ABSOLUTE MAXIMUM RATINGS (Tamb = 25°C)
Symbol
Parameter
VPP ESD discharge IEC 61000-4-2, contact discharge
ESD discharge - MIL STD 883 - Method 3015-6
Tj Junction temperature
Tstg Storage temperature range
TL Lead solder temperature (10 second duration)
Top Operating temperature Range
Pr Power rating per resistor
Value
±15
±25
150
- 55 to +150
260
0 to 70
100
Unit
kV
kV
°C
°C
°C
°C
mW
ELECTRICAL CHARACTERISTICS (Tamb = 25°C)
Symbol
Parameters
Test conditions Min Typ Max Unit
VBR Diode breakdown voltage IR = 1mA
6
V
VF Diode forward voltage drop IF = 50mA
0.9 V
2/9
|
PDF 파일 내의 페이지 : 총 9 페이지
제조업체: STMicroelectronics
( stm )
USBDFXXW5 filter
데이터시트 다운로드 :
[ USBDFXXW5.PDF ]
[ USBDFXXW5 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
