PACUSBVB Datasheet, PDF (1/7 Pages) ON Semiconductor – USB Downstream Port Terminator with VBUS ESD Protection

PACUSBVB
USB Downstream Port
Terminator with VBUS ESD
Protection
Product Description
The PACUSBVB−D1 is a single−channel USB downstream−port
termination network. It integrates EMI/RFI filter components R1 and
C1 as recommended by the USB specification, as well as the required
15 kW pull−down resistors (R2) to GND. In addition,
PACUSBVB−D1 provides a very high level of protection for sensitive
electronic components that may be subjected to electrostatic discharge
(ESD). The device pins will safely dissipate ESD strikes of 15 kV,
exceeding the maximum requirements of the IEC 61000−4−2
international standard. Using the MIL−STD−883D (Method 3015)
specification for Human Body Model (HBM) ESD, all pins are
protected from contact discharges to 20 kV.
The PACUSBVB−D1 also features a fifth zener diode (cathode at
pin 5) which provides ESD protection for the USB VBUS line.
There are three options for the value of the series resistor R1: 15 W,
33 W, and 22 W. This series resistance, plus the USB driver output
resistance, must be close to the USB cable’s characteristic impedance
of 45 W (each side) to minimize transmission line reflections.
The PACUSBVB−D1 is housed in a 6−pin SOT23 package and is
available with optional lead−free finishing.
Features
 A Low−Capacitance USB Downstream Port Terminator, EMI
Filter, and Transient Over−Voltage Protector in a Single
Surface−Mounted Package
 ESD Protection to 20 kV Contact Discharge, per
MIL−STD−883D, Method 3015
 ESD Protection to 15 kV Contact Discharge, per IEC 61000−4−2
International Standard
 Provides ESD Protection for the VBUS Line
 Compact SOT23−6 Package Saves Board Space and Lowers
Manufacturing Costs Compared to Discrete Solutions
 Capacitors Matched to a Precision Exceeding the USB
Specification
 These Devices are Pb−Free and are RoHS Compliant
Applications
 ESD Protection and Termination of USB Downstream Ports
 Desktop PCs
 Notebooks
 Set−Top Boxes
 USB Hubs
http://onsemi.com
1
2
GND
3
SOT23−6
CASE 527AJ
ELECTRICAL SCHEMATIC
R1
C1 R2
C1 R2
R1
6
5
V_BUS
4
MARKING DIAGRAM
UD1R
UD1R = PACUSBVB−D1Y6R
ORDERING INFORMATION
Device
Package Shipping^†
PACUSBVB−D1Y6R SOT23−6 3000/Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
 Semiconductor Components Industries, LLC, 2011
1
October, 2011 − Rev. 3
Publication Order Number:
PACUSBVB/D