EClamp2522P USB Upstream Port Filter and TVS For EMI Filtering and ESD Protection PRELIMINARY PROTECTION PRODUCTS - EMIClampTM Description Features The EClampTM2522P is an easily implemented solution for protection and termination of low speed or full speed Universal Serial Bus (USB) ports. Each device will provide termination, filtering, and ESD protection for one upstream USB port on cellular phones and other portable electronics. This state-of-the-art device utilizes solid-state silicon-avalanche technology for superior clamping performance and electrical characteristics. Bidirectional EMI/RFI filter with integrated TVS for ESD protection ESD protection to IEC 61000-4-2 (ESD) Level 4, Line termination is achieved with 22 Ohm series resistors on both the D+ and D- USB lines. TVS diodes are also included on each data line for ESD protection in excess of ±15kV (air discharge) and ±8kV (contact discharge) per IEC 61000-4-2, level 4. An additional TVS diode connection is included for protection of the voltage (VBus) bus. The 1.5k Ohm pull-up resistor is included on one of the USB data lines to identify the equipment as either a full-speed (connected to D+ line) or low-speed (connected to D- line) device. ±15kV (air), ±8kV (contact) TVS working voltage: 5.25V Termination Resistor: 22 Ohms Capacitance: 45pF (Max at VR = 0V) Protection and filtering for one USB port Solid-state technology Mechanical Characteristics The EClamp2522P is in a 6-pin, RoHS compliant, SLP1616P6 package. It measures 1.6 x 1.6 x 0.60mm. The leads are spaced at a pitch of 0.5mm and are finished with lead-free NiPdAu. The small package makes it ideal for use in portable electronics such as cell phones and digital still cameras. SLP1616P6 6L package RoHS/WEEE Compliant Nominal Dimensions: 1.6 x 1.6 x 0.60 mm Lead Finish: NiPdAu Molding compound flammability rating: UL 94V-0 Marking : Marking code + date code Packaging : Tape and Reel per EIA 481 Applications USB Ports Cellular Handsets PDAs PC Peripherals MP3 Players Pin Configuration Circuit Diagram 1 6 1.5k 22 2 VBus 1 5 20pF 20pF DM In 2 DP In 3 GND 20pF 20pF 3 22 6 Vterm R Gnd 5 DM Out 4 DP Out 4 SLP1616P6 (Top View) Revision 07/29/2007 1 www.semtech.com EClamp2522P PRELIMINARY PROTECTION PRODUCTS Maximum Ratings R ating Symbol Value Units VESD +/- 17 +/- 12 kV Junction Temp erature TJ 125 o Op erating Temp erature Top -40 to +85 o Storage Temp erature TSTG -55 to +150 o ESD p er IEC 61000-4-2 (Air) ESD p er IEC 61000-4-2 (Contact) C C C Electrical Characteristics (T=25oC) Parameter T VS Reverse Stand-Off Voltage T VS Reverse Breakdown Voltage Symbol Conditions VRWM Pin 1 to GN D V BR Pin 1 to GN D It = 1mA Minimum 6 Typical 7.5 Maximum Units 5.5 V V 9 T VS Reverse Leakage Current IR VRWM= 5.5V Between data (D+, D-) p in and Ground 1 µA T VS Reverse Leakage Current IR Each Line 1 µA Series Resistance RS Each Line Pull Up Resistance R PU Total Cap acitance CTOT 2007 Semtech Corp. Pin 1, 2 or 3 to GN D VR = 0V, f = 1MHz 2 20 22 24 Ohms 1.35 1.5 1.65 kOhms 30 40 45 pF www.semtech.com EClamp2522P PRELIMINARY PROTECTION PRODUCTS Typical Characteristics Typical Insertion Loss S21 CH1 S21 LOG Analog Crosstalk (Each Line) 6 dB / REF 0 dB CH1 S21 LOG 20 dB /REF 0 dB 1: -4.7448 dB 163.291 MHz 2: -19.581 dB 800.00 MHz 0 dB -6 dB 3: -21.137 dB 900.00 MHz 1 -12 dB 5 -18 dB 4 2 -24 dB 3 4: -17.702 dB 1.800 GHz 5: -15.929 dB 2.500 GHz -30 dB -36 dB -42 dB -48 dB 1 MHz 10 MHz 100 MHz 1 3 GHz GHz START. 030 MHz STOP 3000. 000000 MHz STOP 3000. 000000 MHz START . 030 MHz ESD Clamping (+8kV Contact) ESD Clamping (-8kV Contact) Note: Data is taken with a 10x attenuator Note: Data is taken with a 10x attenuator Normalized Capacitance vs. Reverse Voltage 1.1 1 0.9 CJ(VR) / CJ(VR=0) 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 f = 1 MHz 0 0 1 2 3 4 5 Reverse Voltage - VR (V) 2007 Semtech Corp. 3 www.semtech.com EClamp2522P PRELIMINARY PROTECTION PRODUCTS Figure 1 - Pin Identification and Configuration (Top Side View) Device Connection The EClamp2522P is designed to provide termination, EMI filtering and ESD protection for one USB port. The device is connected as follows: 1 . Full-Speed Devices: For full-speed devices the pull-up resistor is connected to the D+ line. Route the D+ line from the connector to pin 2. Pin 5 is connected to the D+ line of the IC. Route the Dline from the connector to pin 3. Pin 4 is connected to the D- line of the IC. Pin 1 is connected to the voltage supply line (VBUS). Pin 6 is connected to the 3.3 Volt supply. The ground connection is made to the center tab. For best results, use multiple vias to the ground plane to reduce parasitic inductance. 6 1 2 3 Gnd 5 4 Pin Symbol Identification 1 VBus 5.25V VBus ESD Protection 2 DM In USB data input with termination resistor 3 DP In USB data input with termination resistor 2 . Low-Speed Devices:: For low speed devices the pull-up resistor is connected to the D- line. Route the D- line from the connector to pin 2. Pin 5 is connected to the D- line of the IC. Route the D+ line from the connector to pin 3. Pin 4 is connected to the D+ line of the IC. Pin 1 is connected to the voltage supply line (VBUS). Pin 6 is connected to the 3.3 Volt supply. The ground connection is made to the center tab. For best results, use multiple vias to the ground plane to reduce parasitic inductance. 4 DP Out USB data output with termination resistor 5 DM Out USB data output with termination resistor USB Port Design Considerations 6 VTerm 1.5k Ohm pull-up resistor Center Tab GN D Ground connection The Universal Serial Bus (USB) specification requires termination and filtering components for proper operation. In addition, an open USB socket is vulnerable to hazardous ESD discharges in excess of 15kV. These discharges can occur on the data lines or the voltage bus. The EClamp2522P is an easily implemented solution that is designed to meet the termination and EMI filter requirements of the USB specification for low speed and full speed devices. It also provides ESD protection to IEC 61000-4-2, level 4. USB line termination is achieved with series resistors on both the D+ and D- lines. These resistors preserve signal integrity by matching the cable impedance to that of the differential driver. A 1.5kΩ pull-up resistor is used to identify an upstream port on either the D+ (full speed devices) or the D- (low speed devices) data line. TVS diodes provide ESD protection of both (D+ and D-) data lines and the voltage bus (VBUS). This integrated solution simplifies design and requires minimal board space. 2007 Semtech Corp. 4 www.semtech.com EClamp2522P PRELIMINARY PROTECTION PRODUCTS Applications Information - Spice Model Line In Line Out Vcc 22Ω D2 EClamp2522P Spice Model EClamp2522P Spice Parameters 2007 Semtech Corp. Parameter Unit D1 D2 IS Amp 3.4E-15 3.4E-15 BV Volt 7.546 7.594 VJ Volt 0.753 0.753 RS Ohm 0.649 0.441 IB V A mp 1E-3 1E-3 CJO Farad 17E-12 31E-12 TT sec 2.541E-9 2.541E-9 M -- 0.24 0.26 N -- 1.1 1.1 EG eV 1.11 1.11 5 www.semtech.com EClamp2522P PRELIMINARY PROTECTION PRODUCTS Outline Drawing - SLP1616P6 A D PIN 1 INDICATOR (LASER MARK) B DIMENSIONS INCHES MILLIMETERS DIM MIN NOM MAX MIN NOM MAX E A SEATING PLANE aaa C A2 C A1 D1 1 2 LxN E/2 E1 A A1 A2 b D D1 E E1 e L N aaa bbb .020 .023 .026 0.00 .001 .002 (.006) .007 .010 .012 .059 .063 .067 .041 .047 .051 .059 .063 .067 .016 .022 .026 .020 BSC .013 .013 .016 6 .004 .004 0.50 0.58 0.65 0.00 0.03 0.05 (0.15) 0.20 0.25 0.30 1.50 1.60 1.70 1.05 1.20 1.30 1.50 1.60 1.70 0.40 0.55 0.65 0.50 BSC 0.25 0.33 0.40 6 0.09 0.09 N bxN bbb e C A B D/2 NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. Land Pattern - SLP1616P6 P X DIMENSIONS Z F G DIM B C P F G X Y Z (C) Y INCHES .051 .060 .020 .018 .035 .012 .025 .085 MILLIMETERS 1.30 1.52 0.50 0.45 0.89 0.30 0.63 2.15 B NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. 2007 Semtech Corp. 6 www.semtech.com EClamp2522P PRELIMINARY PROTECTION PRODUCTS Marking Ordering Information 2522P XX Part Number Qty per Reel R eel Size EClamp 2522P.TCT 3000 7 Inch This is a lead-free RoHS/WEEE Compliant Device EMIClamp and EClamp are marks of Semtech Corporation XX = Date Code Tape and Reel Specification Pin 1 Location Device Orientation in Tape Pin 1 in upper left towards sprocket holes A0 1.78 +/-0.05 mm Tape Width 8 mm B0 K0 1.78 +/-0.05 mm B, (Max) D 4.2 mm 1.5 + 0.1 mm - 0.0 mm ) 0.69 +/-0.05 mm D1 E 0.5 mm ±0.05 1.750±.10 mm F 3.5±0.05 mm K (MAX) P P0 P2 2.4 mm 4.0±0.1 mm 4.0±0.1 mm 2.0±0.05 mm T(MAX) 0.4 mm W 8.0 mm + 0.3 mm - 0.1 mm Contact Information Semtech Corporation Protection Products Division 200 Flynn Rd., Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 2007 Semtech Corp. 7 www.semtech.com