PACUSB-D1/D2/D3 USB Downstream Port Terminator Features Product Description • The PACUSB-D1/D2/D3 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 15kΩ pull-down resistors (R2) to GND. In addition, PACUSB-D1/D2/D3 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 +15kV, exceeding the maximum requirements of the IEC 61000-4-2 international standard. Using the MILSTD-883D (Method 3015) specification for Human Body Model (HBM) ESD, all pins are protected from contact discharges to +20kV. • • • • • • A low-capacitance USB downstream port terminator, EMI filter, and transient over-voltage (ESD) protector in a single surface-mounted package ESD protection to +20kV contact discharge, per MIL-STD-883D, Method 3015 ESD protection to +15kV contact discharge, per IEC 61000-4-2 International Standard Compact SOT23-5 and SC70-5 package options save board space and lower manufacturing costs compared to discrete solutions Capacitors matched to a precision exceeding the USB specification Pin-compatible with ST Microelectronics USBDFxxW5 USB Downstream Port Terminator Lead-free versions available Applications • • • • • ESD protection and termination of USB downstream ports Desktop PCs Notebooks Set-top boxes USB hubs There are three options for the value of the series resistor R1: 15Ω, 22Ω, and 33Ω. This series resistance, plus the USB driver output resistance, must be close to the USB cable’s characteristic impedance of 45Ω (each side) to minimize transmission line reflections. The PACUSB-D1/D2/D3 is manufactured in a 5-pin SC70 or a 5-pin SOT23 package and is available with optional lead-free finishing. Electrical Schematic R1 1 C1 2 GND C1 3 5 R2 R2 R1 4 © 2004 California Micro Devices Corp. All rights reserved. 09/14/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 1 PACUSB-D1/D2/D3 PACKAGE / PINOUT DIAGRAMS Top View Top View GND 2 D- CNTR 3 D+ CONN 5 D- CONN 4 D+ CNTR 1 GND 2 D- CNTR 3 5 D+ CONN 4 D- CONN DFn / FnR 1 UDFn / DFnR D+ CNTR 5-pin SC70 5-pin SOT23 PACUSB-D1YB5/-D2YB5/-D3YB5 -D1YB5R/-D2YB5R/-D3YB5R PACUSB-D1Y5/-D2Y5/-D3Y5 -D1Y5R/-D2Y5R/-D3Y5R Note 1: The "n" shown in part markings above represents either the digit "1," "2," or "3." Note 2: SOT23 and SC70 package sizes may differ. These drawings are not to scale. PIN DESCRIPTIONS PINS NAME DESCRIPTION 1 D+ CNTR 2 GND 3 D- CNTR D- Data to the USB controller circuitry 4 D- CONN D- Data to the USB connector 5 D+ CONN D+ Data to the USB connector D+ Data to the USB controller circuitry Ground Pin Ordering Information PART NUMBERING INFORMATION Standard Finish Lead-free Finish Pins R1 Value Package Ordering Part Number1 Part Marking Ordering Part Number1 Part Marking 5 15 Ω SOT23-5 5 PACUSB-D2Y5 UDF2 PACUSB-D2Y5R DF2R 22 Ω PACUSB-D3Y5 UDF3 PACUSB-D3Y5R DF3R 33 Ω PACUSB-D1Y5 UDF1 PACUSB-D1Y5R DF1R PACUSB-D2YB5 DF2 PACUSB-D2YB5R F2R 22 Ω PACUSB-D3YB5 DF3 PACUSB-D3YB5R F3R 33 Ω PACUSB-D1YB5 DF1 PACUSB-D1YB5R F1R 15 Ω SC70-5 Note 1: Parts are shipped in Tape & Reel form unless otherwise specified. © 2004 California Micro Devices Corp. All rights reserved. 2 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 09/14/04 PACUSB-D1/D2/D3 Specifications ABSOLUTE MAXIMUM RATINGS PARAMETER RATING Storage Temperature Range UNITS -65 to +150 °C Power Dissipation per Resistor 100 mW Package Power Dissipation 200 mW 6 V RATING UNITS -40 to +85 °C Voltage on any pin (DC) STANDARD OPERATING CONDITIONS PARAMETER Operating Temperature © 2004 California Micro Devices Corp. All rights reserved. 09/14/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 3 PACUSB-D1/D2/D3 Specifications (cont’d) ELECTRICAL OPERATING CHARACTERISTICS (SEE NOTE 1) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS R1 Resistance of R1 Resistor (PACUSB-D2Y5/Y5R, -D2YB5/YB5R) TA = 25°C 12 15 18 Ω R1 Resistance of R1 Resistor (PACUSB-D3Y5/Y5R, -D3YB5/YB5R) TA = 25°C 17.6 22 26.4 Ω R1 Resistance of R1 Resistor (PACUSB-D1Y5/Y5R, -D1YB5/YB5R) TA = 25°C 26.4 33 39.6 Ω R2 Resistance of R2 Resistor TA = 25°C TCR C1 Temperature Coefficient of Resistance Note 1 Capacitance of C1 Capacitor ppm/ °C 47 56.4 pF 2.5 VDC; 30 mVAC; 1MHz; 25°C 25.6 32 38.4 pF +2 % 100 nA ILEAK Diode Leakage Current to GND Measured at 3.3 VDC, 25°C VRB Diode Reverse Bias Voltage ILOAD = 10μA; TA = 25°C 5.5 VSIG Signal Voltage: Positive Clamp Negative Clamp ILOAD = 10mA; TA = 25°C ILOAD = 10mA; TA = 25°C 5.6 -0.4 MIL-STD-883D, Method 3015 (HBM) Pins 1, 3; Notes 2,3 and 4 Pins 4, 5; Notes 2 and 3 +4 +20 IEC 61000-4-2 Contact Discharge Pins 4, 5; Notes 2 and 3 +15 VCL +1300 37.6 1MHz; 25°C VESD kΩ 0 VDC; 30 mVAC; 1MHz; 25°C Matching Tolerance of C1 Capacitors TOLCM 15 1 V 6.8 -0.8 9.0 -1.5 V V In-system ESD Withstand Voltage Clamping voltage under ESD discharge kV kV kV MIL-STD-883D, Method 3015 +8kV; Notes 2 and 5 12 V MIL-STD-883D, Method 3015 8kV; Notes 2 and 5 -7 V Note 1: Note 2: Note 3: Note 4: Electrical operating characteristics guaranteed over standard operating conditions unless specified otherwise. Guaranteed by design and characterization. ESD voltage applied to pins with respect to GND, one at a time; unused pins are left open. Pins 1 and 3 are not connected to the USB port connector, and therefore are not exposed to external ESD hazards. Thus, they do not require the high ESD protection levels provided for pins 4 and 5. Note 5: ESD Clamping Voltage is measured at the opposite end of R1 from the pin to which the ESD discharge is applied (e.g., if ESD is applied to pin 6, then the clamping voltage is measured at pin 1). © 2004 California Micro Devices Corp. All rights reserved. 4 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 09/14/04 PACUSB-D1/D2/D3 Performance Information Capacitance vs. Voltage The C1 capacitance value as a function of DC voltage across it is presented in Figure 1. The curve is normalized to a capacitance of 1.0 capacitance units at 2.5 VDC. 1.6 Normalized C1 Capacitance 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 1 2 3 4 5 6 DC Voltage Figure 1. Diode Capacitance vs. DC Voltage (Normalized) Insertion Loss vs. Frequency Characteristics Figure 2. Insertion Loss vs. Frequency Performance Curve, PACUSB-D1(SOT23-6) © 2004 California Micro Devices Corp. All rights reserved. 09/14/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 5 PACUSB-D1/D2/D3 Performance Information (cont’d) Figure 3. Insertion Loss vs. Frequency Performance Curve, PACUSB-D2(SOT23-6) Figure 4. Insertion Loss vs. Frequency Performance Curve, PACUSB-D3(SOT23-6) © 2004 California Micro Devices Corp. All rights reserved. 6 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 09/14/04 PACUSB-D1/D2/D3 Application Information The PACUSB-D1/D2/D3 provides a complete interface for a single downstream USB port typically found in computers and USB hubs. It integrates the series resistors (R1) and the 15kΩ pull-down resistors (R2) for both USB data lines (D+ and D-) as well as the capacitors to ground for EMI suppression. Zener diodes provide ESD protection up to 15kV contact dis- charge per the IEC 61000-4-2 standard and protect the USB controller on both data lines. The PACUSB-D1/D2/D3 should be placed on the PCB between the USB controller and the USB connector, as shown on the Connection Diagram Figure 5. PACUSB-DnY5/Y5R, -DnYB5/YB5R D+ USB CONTROLLER R1 1 C1 D+ R2 DOWNSTREAM USB CONNECTOR 2 C1 D- 5 3 R2 4 R1 D- Figure 5. Connection Diagram for PACUSB-D1/D2/D3 Devices To guarantee the best ESD and filtering performance, it is recommended to physically locate the PACUSBD1/D2/D3 close to the USB connector. Also, the trace lengths between the PACUSB-D1/D2/D3 and the USB controller should be kept as short as possible. © 2004 California Micro Devices Corp. All rights reserved. 09/14/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 7 PACUSB-D1/D2/D3 Mechanical Details PACUSB-D1/D2/D3 devices are packaged in SOT23-5 and SC70-5 packages. Mechanical Package Diagrams SOT23-5 Mechanical Specifications: Dimensions for PACUSB-D1/D2/D3 devices packaged in a 5-pin SOT23 package are presented below. TOP VIEW e1 For complete information on the SOT23-5 package, see the California Micro Devices SOT23 Package Information document. e 5 4 E1 E 1 2 3 PACKAGE DIMENSIONS Package SOT23-5 (JEDEC name is MO-178) Pins 5 Dimensions SIDE VIEW Millimeters Min Max Inches Min A -- 1.45 -- 0.057 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 e 0.95 BSC 0.0374 BSC e1 1.90 BSC 0.0748 BSC L1 # per tape and reel 0.30 0.60 0.0236 0.60 REF D Max A1 L b A A1 END VIEW c 0.024 L1 L 0.024 REF 3000 pieces* Controlling dimension: millimeters * This is an approximate amount which may vary. Package Dimensions for SOT23-5. © 2004 California Micro Devices Corp. All rights reserved. 8 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 09/14/04 PACUSB-D1/D2/D3 Mechanical Details (continued) SC70-5 Mechanical Specifications: Dimensions for PACUSB-D1/D2/D3 devices packaged in a 5-pin SC70 package are presented below. Mechanical Package Diagrams TOP VIEW For complete information on the SC70-5 package, see the California Micro Devices SC70 Package Information document. e e 5 4 E HE 1 PACKAGE DIMENSIONS Package SC70-5 (JEDEC name is MO-203 Issue A) Pins 5 Dimensions 3 B SIDE VIEW Millimeters Min Max A 0.80 1.10 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 e 2 D A2 A A1 END VIEW 0.65 BSC HE 2.00 2.40 L 0.26 0.46 # / bag 1000 pieces* # / tape and reel 3000 pieces* c L Package Dimensions for SC70-5. * This is an approximate amount which may vary. © 2004 California Micro Devices Corp. All rights reserved. 09/14/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com 9