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參數(shù)資料
| 型號： | STF203-33.TC |
| 英文描述： | Analog Miscellaneous |
| 中文描述： | 模擬雜項(xiàng) |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 134K |
| 代理商： | STF203-33.TC |
PROTECTION PRODUCTS
Description
The STF201 is a combination EMI filter and line termi-
nation device with integrated TVS diodes for use on
downstream USB ports. It is constructed using a
proprietary technology that allows passive components
and TVS diodes to be integrated in the same package.
Each device will provide
termination
,
filtering
, and
ESD
protection
for one downstream USB port. The STF201
is an easily implemented solution for meeting the
requirements of revision 1.1 of the Universal Serial Bus
specification.
USB line termination is achieved with series 22
or
30
resistors on both the D+ and D- USB lines. These
resistors preserve signal integrity by matching the cable
impedance to that of the differential driver. The 15k
pull-down resistors complete the termination circuit on
each line. They are required by the USB specification
to identify the line as a downstream connection. The
47pF capacitors are used to bypass high frequency
energy to ground and for edge rate control of the USB
signals. Finally, the STF201 contains TVS diodes for
ESD protection of both (D+ & D-) data lines and the
voltage bus (V
). The TVS diodes provide effective
suppression of ESD voltages in excess of 15kV (air
discharge) and 8kV (contact discharge) per IEC 61000-
4-2, level 4.
The small size and integrated feature of the STF201
minimizes required board space and increases system
reliability. The pin-out of the device allows easy imple-
mentation. The STF201 is suitable for use in USB
hubs, computers, peripherals, and portable devices.
1
www.semtech.com
STF201-22 & STF201-30
USB Downstream Port Filter & TVS
For EMI Filtering and ESD Protection
Features
!
Bidirectional EMI/RFI filtering and line termination
with integrated ESD protection
!
ESD protection for USB power (V
) and data lines
(D+ & D-) to
IEC 61000-4-2 Level 4
!
Filtering and termination for two USB data lines
!
Different series resistors for impedance matching
!
Low TVS operating voltage (5.25V)
!
Low leakage current
!
Low capacitance
!
Solid-state technology
Schematic & Pin Configuration
Revision 4/19/01
Applications
!
USB Hubs
!
Portable electronics
!
Printers
!
Monitors
!
Servers, Desktop, and Notebook computers
Mechanical Characteristics
!
EIAJ SOT23-6L package
!
Molding compound flammability rating: UL 94V-0
!
Marking : Marking Code
!
Packaging : Tape and Reel per EIA 481
S0T23-6L (Top View)
Circuit Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STF203-XX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:USB Upstream Port Filter & TVS for EMI Filtering and ESD Protection |
| STF2045C | 功能描述:DIODE ARRAY SCHOTTKY 45V ITO220 制造商:smc diode solutions 系列:- 包裝:管件 零件狀態(tài):有效 二極管配置:1 對共陰極 二極管類型:肖特基 電壓 - DC 反向（Vr）（最大值）:45V 電流 - 平均整流（Io）（每二極管）:- 不同 If 時(shí)的電壓 - 正向（Vf）:580mV @ 10A 速度:快速恢復(fù) = 200mA（Io） 反向恢復(fù)時(shí)間（trr）:- 不同?Vr 時(shí)的電流 - 反向漏電流:2mA @ 45V 安裝類型:通孔 封裝/外殼:TO-220-3 隔離片 供應(yīng)商器件封裝:ITO-220AB 標(biāo)準(zhǔn)包裝:50 |
| STF2050C | 功能描述:DIODE ARRAY SCHOTTKY 50V ITO220 制造商:smc diode solutions 系列:- 包裝:管件 零件狀態(tài):有效 二極管配置:1 對共陰極 二極管類型:肖特基 電壓 - DC 反向（Vr）（最大值）:50V 電流 - 平均整流（Io）（每二極管）:- 不同 If 時(shí)的電壓 - 正向（Vf）:550mV @ 10A 速度:快速恢復(fù) = 200mA（Io） 反向恢復(fù)時(shí)間（trr）:- 不同?Vr 時(shí)的電流 - 反向漏電流:1.5mA @ 50V 安裝類型:通孔 封裝/外殼:TO-220-3 隔離片 供應(yīng)商器件封裝:ITO-220AB 標(biāo)準(zhǔn)包裝:50 |
| STF2060C | 功能描述:DIODE ARRAY SCHOTTKY 60V ITO220 制造商:smc diode solutions 系列:- 包裝:管件 零件狀態(tài):有效 二極管配置:1 對共陰極 二極管類型:肖特基 電壓 - DC 反向（Vr）（最大值）:60V 電流 - 平均整流（Io）（每二極管）:- 不同 If 時(shí)的電壓 - 正向（Vf）:650mV @ 10A 速度:快速恢復(fù) = 200mA（Io） 反向恢復(fù)時(shí)間（trr）:- 不同?Vr 時(shí)的電流 - 反向漏電流:850μA @ 60V 安裝類型:通孔 封裝/外殼:TO-220-3 隔離片 供應(yīng)商器件封裝:ITO-220AB 標(biāo)準(zhǔn)包裝:50 |
| STF2060CR | 功能描述:DIODE SCHOTTKY 60V ITO220AB 制造商:smc diode solutions 系列:- 包裝:管件 零件狀態(tài):有效 二極管配置:1 對共陽極 二極管類型:肖特基 電壓 - DC 反向（Vr）（最大值）:60V 電流 - 平均整流（Io）（每二極管）:- 不同 If 時(shí)的電壓 - 正向（Vf）:650mV @ 10A 速度:快速恢復(fù) = 200mA（Io） 反向恢復(fù)時(shí)間（trr）:- 不同?Vr 時(shí)的電流 - 反向漏電流:850μA @ 60V 安裝類型:通孔 封裝/外殼:TO-220-3 隔離片 供應(yīng)商器件封裝:ITO-220AB 標(biāo)準(zhǔn)包裝:50 |
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