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NUF2221W1 Dataheets PDF



Part Number NUF2221W1
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description USB Upstream Terminator
Datasheet NUF2221W1 DatasheetNUF2221W1 Datasheet (PDF)

NUF2221W1 USB Upstream Terminator with ESD Protection This device is designed for applications requiring Line Termination, EMI Filtering and ESD Protection. It is intended for use in upstream USB ports, Cellular phones, Wireless equipment and computer applications. This device offers an integrated solution in a small package (SC−88/SOT−363) reducing PCB space and cost. Features • Provides USB Line Termination, Filtering and ESD Protection • Single IC Offers Cost Savings • Bi−directional EMI Fil.

  NUF2221W1   NUF2221W1


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NUF2221W1 USB Upstream Terminator with ESD Protection This device is designed for applications requiring Line Termination, EMI Filtering and ESD Protection. It is intended for use in upstream USB ports, Cellular phones, Wireless equipment and computer applications. This device offers an integrated solution in a small package (SC−88/SOT−363) reducing PCB space and cost. Features • Provides USB Line Termination, Filtering and ESD Protection • Single IC Offers Cost Savings • Bi−directional EMI Filtering Prevents Noise from Entering/Leaving the System • Compliance with IEC61000−4−2 (Level 4) 25 kV (Contact) 30 kV (Air) • Flexible Pull−up Line Termination to Meet USB 1.1 Low Speed and High Speed Specification • ESD Ratings: Machine Model = C ESD Ratings: Human Body Model = 3B • This is a Pb−Free Device Benefits • SC−88 Package Minimizes PCB Space • Integrated Circuit Increases System Reliability versus Discrete Component Implementation • TVS Devices Provide ESD Protection That is Better than a Discrete Implementation because the Small IC minimizes Parasitic Inductances Typical Applications • USB Hubs • Computer Peripherals Using USB MAXIMUM RATINGS (TA = 25°C) Rating Symbol Value Unit Steady State Power PD 225 mW Maximum Junction Temperature TJ(max) 125 °C Operating Temperature Range TJ −55 to +125 °C Storage Temperature Range Tstg −55 to +125 °C Lead Solder Temperature (10 second duration) TL 260 °C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. http://onsemi.com CIRCUIT DESCRIPTION D1(c) 6 VBUS 5 D2(c) 4 Rup Rs C1 C1 Rs 1 D1(i) 2 GND 3 D2(i) SC−88 / SOT−363 CASE 419B 1 PLASTIC MARKING DIAGRAM 6 022 M G G 1 022 = Specific Device Code G = Pb−Free Package (Note: Microdot may be in either location) ORDERING INFORMATION Device RS (W) Pkg Shipping† NUF2221W1T2G 22 SC−88 3000 / (Pb−Free) Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. © Semiconductor Components Industries, LLC, 2008 1 November, 2008 − Rev. 0 Publication Order Number: NUF2221W1/D NUF2221W1 ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted) Device VRWM (Volts) VBR @ 1 mA (Volts) Min Typ Max IR @ 3.3 V (nA) Min Typ Max Line Capacitance Vdc = 2.5 V f = 1 MHz pF (Note 1) Min Typ Max Series Resistor RS (W) Min Typ Max Pull−up Resistor Rup (kW) Min Typ Max NUF2221W1 5.25 5.6 6.8 8.0 − 10 100 37.6 42 56.4 17.6 22 26.4 1.2 1.5 1.8 1. Measured between pins 1, 3, 4, 6 and ground with pin 5 also grounded. 2. For other resistance values (e.g. 15 W, 33 W), please contact your local ON Semiconductor sales representative. TYPICAL CHARACTERISTICS RS (W) (dB) RUP (W) 0 −5 −10 −15 −20 −25 Temp = 25°C −30 0.10 1.00 10.00 100.00 FREQUENCY (MHz) 1000.00 Figure 1. Insertion Loss Characteristics 24.5 1600 24.0 RS = Typical 1580 RUP = Typical 1560 23.5 1540 23.0 1520 22.5 1500 22.0 1480 21.5 1460 −20 −10 0 10 20 30 40 50 60 70 −20 −10 0 10 20 30 40 50 60 70 TEMPERATURE (°C) Figure 2. RS versus Temperature TEMPERATURE (°C) Figure 3. RUP versus Temperature http://onsemi.com 2 NUF2221W1 APPLICATIONS BACKGROUND What is USB? The USB is not a serial port, it is a serial bus, a fact that enables a single port on the computer to be a link for a myriad of devices, (up to 127 devices in a USB system). We can easily chain one device to another and use one port as a connecting point of many devices by using a hub. All these enable us to look at the USB system as a small network of devices. The Universal Serial Bus (USB) makes connecting devices to your computer faster, easier and virtually limitless. High−Speed USB devices are capable of communicating at speeds up to 12 megabytes−without shutting down and without having to open your computer. Typical USB System Monitor Telephone Scanner Printer HUB Computer PC CPU KeyBoard Plotter Mouse devices, handling the power management for devices that are bus−powered (get power from the bus), and responsibility for bus error detection and recovery. Another important role of the hub is to manage both full and low speed devices. When a device is attached to the system the hub detects the speed, which the device operates in, and through the whole communication on the bus prevents from full speed traffic to reach low seed device and vice versa – prevent from low speed traffic to reach full speed device. The Device The Device is defined as everything in the USB system, which is not a host (including hubs). A device provides one or more USB functions. Most of the.


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