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PACUSB-D1/D2/D3 USB Downstream Port Terminator
Features
* * * * * * * 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
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 15k 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. There are three options for the value of the series resistor R1: 15, 22, and 33. This series resistance, plus the USB driver output resistance, must be close to the USB cable's characteristic impedance of 45 (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.
Applications
* * * * * ESD protection and termination of USB downstream ports Desktop PCs Notebooks Set-top boxes USB hubs
Electrical Schematic
1 C1 2 GND C1 3
R1 R2
5
R2 R1 4
(c) 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
D+ CNTR GND D- CNTR
1 5
Top View
D+ CONN D+ CNTR GND D- CONN D- CNTR
1 5
D+ CONN
UDFn / DFnR
4
DFn / FnR
2
2
3
3
4
D- CONN
5-pin SOT23
PACUSB-D1Y5/-D2Y5/-D3Y5 -D1Y5R/-D2Y5R/-D3Y5R
5-pin SC70
PACUSB-D1YB5/-D2YB5/-D3YB5 -D1YB5R/-D2YB5R/-D3YB5R
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 1 2 3 4 5 NAME D+ CNTR GND D- CNTR D- CONN D+ CONN DESCRIPTION D+ Data to the USB controller circuitry Ground Pin D- Data to the USB controller circuitry D- Data to the USB connector D+ Data to the USB connector
Ordering Information
PART NUMBERING INFORMATION
Standard Finish Pins 5 R1 Value 15 22 33 5 15 22 33 SC70-5 Package SOT23-5 Ordering Part Number1 PACUSB-D2Y5 PACUSB-D3Y5 PACUSB-D1Y5 PACUSB-D2YB5 PACUSB-D3YB5 PACUSB-D1YB5 Part Marking UDF2 UDF3 UDF1 DF2 DF3 DF1 Lead-free Finish Ordering Part Number1 PACUSB-D2Y5R PACUSB-D3Y5R PACUSB-D1Y5R PACUSB-D2YB5R PACUSB-D3YB5R PACUSB-D1YB5R Part Marking DF2R DF3R DF1R F2R F3R F1R
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
(c) 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 Storage Temperature Range Power Dissipation per Resistor Package Power Dissipation Voltage on any pin (DC) RATING -65 to +150 100 200 6 UNITS C mW mW V
STANDARD OPERATING CONDITIONS
PARAMETER Operating Temperature RATING -40 to +85 UNITS C
(c) 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 R1 R1 R1 R2 TCR C1 TOLCM ILEAK VRB VSIG PARAMETER Resistance of R1 Resistor (PACUSB-D2Y5/Y5R, -D2YB5/YB5R) Resistance of R1 Resistor (PACUSB-D3Y5/Y5R, -D3YB5/YB5R) Resistance of R1 Resistor (PACUSB-D1Y5/Y5R, -D1YB5/YB5R) Resistance of R2 Resistor CONDITIONS TA = 25C TA = 25C TA = 25C TA = 25C MIN 12 17.6 26.4 TYP 15 22 33 15 +1300 37.6 25.6 47 32 1 5.5 5.6 -0.4 +4 +20 +15 12 -7 6.8 -0.8 9.0 -1.5 56.4 38.4 +2 100 MAX 18 26.4 39.6 UNITS k ppm/ C pF pF % nA V V V kV kV kV V V
Temperature Coefficient of Resistance Note 1 Capacitance of C1 Capacitor Matching Tolerance of C1 Capacitors Diode Leakage Current to GND Diode Reverse Bias Voltage Signal Voltage: Positive Clamp Negative Clamp In-system ESD Withstand Voltage MIL-STD-883D, Method 3015 (HBM) IEC 61000-4-2 Contact Discharge Pins 1, 3; Notes 2,3 and 4 Pins 4, 5; Notes 2 and 3 Pins 4, 5; Notes 2 and 3 MIL-STD-883D, Method 3015 +8kV; Notes 2 and 5 MIL-STD-883D, Method 3015 8kV; Notes 2 and 5 0 VDC; 30 mVAC; 1MHz; 25C 2.5 VDC; 30 mVAC; 1MHz; 25C 1MHz; 25C Measured at 3.3 VDC, 25C ILOAD = 10A; TA = 25C ILOAD = 10mA; TA = 25C ILOAD = 10mA; TA = 25C
VESD
VCL
Clamping voltage under ESD discharge
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).
Note 1: Note 2: Note 3: Note 4:
(c) 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 1.4
Normalized C1 Capacitance
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)
(c) 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)
(c) 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 15k 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 discharge 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+
1
C1
R1 R2
5
D+
USB CONTROLLER
2
C1 R2 R1
DOWNSTREAM USB CONNECTOR
D-
3
4
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.
(c) 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. SOT23-5 Mechanical Specifications: Dimensions for PACUSB-D1/D2/D3 devices packaged in a 5-pin SOT23 package are presented below. For complete information on the SOT23-5 package, see the California Micro Devices SOT23 Package Information document.
TOP VIEW
Mechanical Package Diagrams
e1
e
4
5
E1 E
1 2 3
PACKAGE DIMENSIONS
Package Pins Dimensions A A1 b c D E E1 e e1 L L1 # per tape and reel Millimeters Min -0.00 0.30 0.08 2.75 2.60 1.45 Max 1.45 0.15 0.50 0.22 3.05 3.00 1.75 Min -0.000 0.012 0.003 0.108 0.102 0.057 SOT23-5 (JEDEC name is MO-178) 5 Inches Max 0.057 0.006 0.020 0.009 0.120 0.118 0.069 c L1 L
END VIEW
b
SIDE VIEW
D A
A1
0.95 BSC 1.90 BSC 0.30 0.60 0.60 REF
0.0374 BSC 0.0748 BSC 0.0236 0.024 0.024 REF
3000 pieces* Controlling dimension: millimeters
* This is an approximate amount which may vary.
Package Dimensions for SOT23-5.
(c) 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. For complete information on the SC70-5 package, see the California Micro Devices SC70 Package Information document.
5
Mechanical Package Diagrams
TOP VIEW
e
e
4
E HE
PACKAGE DIMENSIONS
Package Pins Dimensions A A1 A2 B c D E e HE L # / bag # / tape and reel 2.00 0.26 1000 pieces* 3000 pieces* Min 0.80 0.00 0.70 0.15 0.08 1.85 1.15 0.65 BSC 2.40 0.46 c SC70-5 (JEDEC name is MO-203 Issue A) 5 Millimeters Max 1.10 0.10 1.00 0.30 0.25 2.25 1.35
1
2
3
B
SIDE VIEW
D A2 A
A1
END VIEW
L
* This is an approximate amount which may vary.
Package Dimensions for SC70-5.
(c) 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

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