Upstream USB Port Terminator PACUSB-U1/U2/U3 Features Product Description • The PACUSB-U1, PACUSB-U2, and PACUSB-U3 are single-channel USB upstream-port termination networks. The PACUSB-U1/U2/U3 integrate EMI/RFI filter components R1 and C1, as recommended by the USB specification. Because these are upstream USB devices, they are terminated with a single 1.5kW pullup resistor to V3.3 (R2). There are three options for the value of the series resistor R1: • For PACUSB-U1, R1=15Ω • For PACUSB-U2, R1=33Ω • For PACUSB-U3, R1=22Ω This series resistance plus the USB driver output resistance must be close to the USB cable’s characteristic impedance of 45Ω (90Ω balanced) to minimize transmission line reflections. In addition, these parts provide a very high level of protection for sensitive electronic components that may be subjected to electrostatic discharge (ESD). The input and output pins are designed and characterized to dissipate ESD strikes of ±15kV safely, a level well beyond 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 for contact discharges to greater than ±30kV. The PACUSB-U1/U2/U3 is housed in either a 6-pin SC70 or 6-pin SOT23 package and is available with optional lead-free finishing. • • • • One upstream USB port terminator, EMI filter and transient overvoltage protector in a single surface-mount package Compact SC70 or SOT23 package saves board space and lowers manufacturing costs compared to discrete solutions ESD protection to ±30kV contact discharge per MIL-STD-883D, method 3015 ESD protection to ±15kV contact discharge per IEC 61000-4-2 international standard Lead-free version available Applications • • • • • • • ESD protection and termination of USB port All USB peripherals (PC printers, scanners, zip drives, etc.) PDAs / handheld PCs Digital cameras Wireless Handets MP3 Players Cable Modems ©2010 SCILLC. All rights reserved. June 2010 – Rev. 2 Publication Order Number: PACUSB-U1/U2/U3/D PACUSB-U1/U2/U3 Electrical Schematic D1_c D1_i i = input c = connector GND V3.3 D2_i D2_c D1_i 1 6 D1_c D1_i 1 6 D1_c GND 2 5 V3.3 GND 2 5 V3.3 D2_i 3 4 D2_c D2_i 3 4 D2_c 6-pin SC70 6-pin SOT23 PIN DESCRIPTIONS PIN NAME DESCRIPTION 1 D1_i The USB Controller side of the D+ or D- bidirectional transmission line of the differential pair defined by USB standards. 2 GND The ground reference for the PACUSB-U1/U2/U3 device. 3 D2_i The USB Controller side of the D- or D+ bidirectional transmission line of the differential pair defined by USB standards. 4 D2_c The connector side of the D- or D+ bidirectional transmission line of the differential pair defined by USB standards. 5 V3.3 6 D1_c The 3.3V supply voltage for the PACUSB-U1/U2/U3 device. The connector side of the D+ or D- bidirectional transmission line of the differential pair defined by USB standards. Rev.2 | Page 2 of 9 | www.onsemi.com PACUSB-U1/U2/U3 Ordering Information PART NUMBERING INFORMATION Standard FInish Lead-free Finish R1 Value (Ω) Pins Package Ordering Part Number1 Part Marking Ordering Part Number1 Part Marking 15 6 SC70-6 PACUSB-U1 UU1 PACUSB-U1R U1R 15 6 SOT23-6 PACUSB-U1Y6 UU1Y PACUSB-U1Y6R U1YR 33 6 SC70-6 PACUSB-U2 UU2 PACUSB-U2R U2R 33 6 SOT23-6 PACUSB-U2Y6 UU2Y PACUSB-U2Y6R U2YR 22 6 SC70-6 PACUSB-U3 UU3 PACUSB-U3R U3R 22 6 SOT23-6 PACUSB-U3Y6 UU3Y PACUSB-U3Y6R U3YR Note 1: Parts are shipped in Tape & Reel form unless otherwise specified. Specifications ABSOLUTE MAXIMUM RATINGS PARAMETER RATING UNITS 5.5 V Operating Temperature Range -40 to +85 °C Storage Temperature Range -65 to +150 °C DC Power to Resistor 100 mW Package Power 200 mW RATING UNITS 3.3 V -40 to +85 °C V3.3 (Supply Voltage) STANDARD OPERATING CONDITIONS PARAMETER V3.3 (Supply Voltage) Ambient Operating Temperature Rev. 2 | Page 3 of 9 | www.onsemi.com PACUSB-U1/U2/U3 ELECTRICAL OPERATING CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS R1 Resistance R1 (PACUSB-U1 only) Measured at TA = 25°C 12 15 18 Ω R1 Resistance R1 (PACUSB-U2 only) Measured at TA = 25°C 26 33 40 Ω R1 Resistance R1 (PACUSB-U3 only) Measured at TA = 25°C 18 22 26 Ω R2 Resistance R2 Measured at TA = 25°C 1.2 1.5 1.8 kΩ C1 Capacitance C1 Measured at 1 MHz, 2.5VDC, TA =25°C 38 47 56 pF ILEAK Diode Leakage Current to GND At 3.3VDC and TA = 25°C 1 100 nA VD1 Diode Reverse-biased Stand-off Voltage I = 10μA,TA = 25°C 5.5 VD2 Signal Clamp Voltage Positive Clamp Negative Clamp @ 10mA, TA = 25°C @ 10mA, TA = 25°C 5.6 -1.2 Note 1 ±30 kV IEC 61000-4-2, contact discharge method (I/O pins) Note 1 ±15 kV IEC 61000-4-2, contact discharge method (V3.3 pin) Note 1 ±25 kV VESD V 6.8 -0.8 8.0 -0.4 V V In-system ESD Withstand Voltage Human Body Model, MIL-STD883, Method 3015 VCLAMP Clamping Voltage during ESD Discharge Positive Negative MIL-STD-883, Method 3015, 8kV; Note 1 10 -5 V V Note 1: ESD applied to input/output/V3.3 pins with respect to GND, one at a time. Clamping voltage is measured at the opposite side of the EMI filter to the ESD pin (i.e., if ESD is applied to pin 1, then clamping voltage is measured at pin 6). Unused pins are open. Rev.2 | Page 4 of 9 | www.onsemi.com PACUSB-U1/U2/U3 Application Information The PACUSB-U1/U2/U3 is targeted for upstream USB ports (peripherals). It provides series termination, EMI filtering, and ESD protection for the two USB data lines D+ and D-. The USB Specification revision 1.1 provides for two data rates: • The Full Speed signaling bit rate at 12 Mbits per second, and • The Low Speed signaling bit rate at 1.5 Mbits per second. The speed is selected by connecting one of the data lines (D+ or D-) to a 3.3V supply voltage via a 1.5kΩ pullup resistor (R2). Connections for Full Speed Operation Full Speed devices have the pull-up resistor (R2) connected to the D+ data line, as shown in Full Speed Connection. Pin1 is tied to the D+ line of the USB controller. Pin 6 is connected to the D+ line on the USB connector. Connections for Low Speed Operation Low Speed devices have the pull-up resistor (R2) connected to the D- data line, as shown in Low Speed Connection. Pin 1 is tied to the D- line of the USB controller; pin 6 is connected to the D- line on the USB connector. Figure 1. Full Speed Connection Rev. 2 | Page 5 of 9 | www.onsemi.com PACUSB-U1/U2/U3 Figure 2. Low Speed Connection Rev.2 | Page 6 of 9 | www.onsemi.com PACUSB-U1/U2/U3 Mechanical Details PACUSB-U1/U2/U3 devices are available in 6-pin SC70 and 6-pin SOT23 packages. SC70 Mechanical Specifications Dimensions for the PACUSB-U1/U2/U3 supplied in a SC70-6 package are presented below. For complete information on the SC70, see the California Micro Devices SC70 Package Information document. PACKAGE DIMENSIONS TOP VIEW Package MO-203 Issue A Pins 6 e 6 e 5 4 E HE Millimeters Dimensions Min Max 1 A 0.80 1.10 B A1 0.00 0.10 A2 0.70 1.00 B 0.15 0.30 c 0.08 0.25 D 1.85 2.25 E 1.15 1.35 D A2 A A1 END VIEW HE 2.00 2.40 L 0.26 0.46 # per tape and reel 3 SIDE VIEW 0.65 BSC e 2 c 3000 pcs L Package Dimensions for SC70-6. Rev. 2 | Page 7 of 9 | www.onsemi.com PACUSB-U1/U2/U3 Mechanical Details (continued) SOT23 Mechanical Specifications Dimensions for the PACUSB-U1/U2/U3 supplied in a SOT23-6 package are presented below. For complete information on the SOT23 , see the California Micro Devices SOT23 Package Information document. PACKAGE DIMENSIONS TOP VIEW Package MO-178 Pins 6 e1 Millimeters 6 Inches e 5 4 Dimensions Min Max Min Max A -- 1.45 -- 0.057 A1 0.00 0.15 0.000 0.006 b 0.30 0.50 0.012 0.020 c 0.08 0.22 0.003 0.009 D 2.75 3.05 0.108 0.120 E 2.60 3.00 0.102 0.118 E1 1.45 1.75 0.057 0.069 E1 E 1 2 3 b SIDE VIEW e 0.95 BSC 0.0374 BSC e1 1.90 BSC 0.0748 BSC L 0.60 REF 0.0236 REF # per tape and reel D A A1 END VIEW 3000 pcs c L1 L Controlling dimension: inches Package Dimensions for SOT23-6. Rev.2 | Page 8 of 9 | www.onsemi.com PACUSB-U1/U2/U3 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. 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