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| PROTECTION PRODUCTS 4 RailClamp(R) -U.com www.DataSheet Description The RailClamp(R) series is a family of ultra low capacitance TVS arrays designed to protect high speed data interfaces. This series has been specifically designed to protect sensitive components which are connected to high-speed data and transmission lines from overvoltage caused by ESD (electrostatic discharge), CDE (Cable Discharge Events), and EFT (electrical fast transients). They are designed for use in applications where board space is at a premium. Each device requires less than 1.2mm2 of PCB area and will protect up to two high speed data lines. The monolithic design incorporates surge rated, low capacitance steering diodes and a TVS diode in a single package. Each line has a typical capacitance of <0.5pF to ground. The capacitance of each line is well matched for consistant signal balance. A connection to the TVS is provided for protection of external voltage buses, such as those found in USB applications. This device is optimized for ESD protection of portable electronics. They may be used to meet the ESD immunity requirements of IEC 61000-4-2, Level 4 (15kV air, 8kV contact discharge). The RCLAMP0502N is in a 6-pin, RoHS/WEEE compliant, SLP1210N6 package. It measures 1.2 x 1.0 x 0.58mm. The small package makes it ideal for use in portable electronics such as cell phones, laptops, and digital still cameras. RailClamp(R) Low Capacitance TVS Diode Array Features ESD protection for high-speed data lines to IEC 61000-4-2 (ESD) 15kV (air), 8kV (contact) IEC 61000-4-4 (EFT) 40A (5/50ns) Array of surge rated diodes with internal TVS Diode Small package saves board space Protects two I/O lines and a power line Low capacitance: 0.3pF typical Low clamping voltage Solid-state silicon-avalanche technology RCLAMP0502N Mechanical Characteristics SLP1210N6 Package RoHs/WEEE Compliant Nominal Dimensions: 1.2 x 1.0 x 0.58 mm Lead Pitch: 0.4mm Lead Finish: NiPdAu Marking : Marking Code Packaging : Tape and Reel Applications USB MMC Port Serial ATA Video Port Circuit Diagram Pin Configuration 6 GND (Pin 1) 1 4 5 VBus (Pin 6) I/O 2 (Pin 5) I/O 1 (Pin 4) NC (Pin 2) NC (Pin 3) Device Schematic Revision 09/19/2008 1 SLP1210N6 package (Top Side View) www.semtech.com RCLAMP0502N PROTECTION PRODUCTS www..com Absolute Maximum Rating Rating Peak Pulse Power (tp = 8/20s) Peak Pulse Current (tp = 8/20s) ESD per IEC 61000-4-2 (Air) ESD per IEC 61000-4-2 (Contact) Operating Temperature Storage Temperature Symbol Ppk IPP VESD TJ TSTG Value 100 3 15 8 -55 to +125 -55 to +150 Units Watts A kV C C Electrical Characteristics (T = 25oC) R Clamp0502N Parameter Reverse Stand-Off Voltage Reverse Breakdown Voltage Reverse Leakage Current Forward Voltage Clamping Voltage Clamping Voltage Junction Capacitance Symbol VRWM V BR IR VF VC VC Cj Conditions Pin 6 to GN D It = 1mA Pin 6 to GN D VRWM = 6.5V, T=25C Pin 6 to GN D If = 15mA Any I/O to pin 6 IPP = 1A, tp = 8/20s Any I/O pin to Ground IPP = 3A, tp = 8/20s Any I/O pin to Ground VR = 0V, f = 1MHz Any I/O pin to Ground VR = 0V, f = 1MHz Between I/O pins 0.3 0.3 0.9 7 9.5 Minimum Typical Maximum 6.5 12 1 1.2 16.5 30 0.5 0.5 Units V V A V V V pF pF (c) 2008 Semtech Corp. 2 www.semtech.com RCLAMP0502N PROTECTION PRODUCTS www..com Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time 10 110 100 % of Rated Power or PP I 90 80 70 60 50 40 30 20 10 Power Derating Curve Peak Pulse Power - PPk (kW) 1 0.1 0.01 0.1 1 10 Pulse Duration - tp (s) 100 1000 0 0 25 50 75 100 125 150 Ambient Temperature - TA (oC) Clamping Voltage vs. Peak Pulse Current I/O to Gnd - Pin 4, 5 to Pin 1 40 35 Clamping Voltage - VC (V) 30 25 20 15 10 5 0 0 0.5 1 1.5 2 2.5 3 3.5 4 Peak Pulse Current - IPP (A) Waveform Parameters: tr = 8s td = 20s Forward Voltage - V F V) 8 7 6 5 4 3 2 1 0 0 Foward Voltage vs. Forward Current Pin 1 to Pin 4, 5 Waveform Parameters: tr = 8s td = 20s 0.5 1 1.5 2 2.5 3 3.5 4 Forward Current - IF (A) Normalize Capacitance vs. Reverse Voltage I/O to Gnd - Pin 4, 5 to Pin 1 1.6 1.4 1.2 1.6 1.4 1.2 Normalize Capacitance vs. Reverse Voltage I/O to I/O - Pin 4 to Pin 5 CJ(VR) / CJ(VR=0) CJ(VR) / CJ(VR=0) 1 0.8 0.6 0.4 0.2 f = 1 MHz 1 0.8 0.6 0.4 0.2 f = 1 MHz 0 0 1 2 3 4 5 6 7 Reverse Voltage - VR (V) 0 0 1 2 3 4 5 6 7 Reverse Voltage - VR (V) (c) 2008 Semtech Corp. 3 www.semtech.com RCLAMP0502N PROTECTION PRODUCTS www..com Applications Information Device Connection Options for Protection of Two HighSpeed Data Lines Data line inputs are normally connected at pins 4 & 5 with the outputs connected at pins 2 & 3. Pin 1 is connected to ground. Note that the circuit at the ground pin is identical to the circuit at each data input/output pin. This is done to further reduce capacitance. The connection to ground should be made directly to a ground plane. The path length should also be kept as short as possible to minimize parasitic inductance. Pin 6 can be connected to Vcc biased or left not connected depending upon the application. Protecting USB 2.0 Interfaces The USB interface consists of Data (D- and D+) lines and a 5.25V voltage bus. Since these pins are part of the connector, they are vulnerable to ESD and cable discharge events. The RCLAMP0502N is designed to protect all four USB connections (VCC, D-, D+, and Gnd). Each device will protect one USB port. When the voltage on the data lines exceed the bus voltage (plus one diode drop), the internal rectifiers are forward biased conducting the transient current away from the protected controller chip. The TVS diode directs the surge to ground. The TVS diode also acts to suppress ESD strikes directly on the voltage bus. Thus, both power and data pins are protected with a single device. Figure 1- Pin Configuration & Circuit Diagram 6 1 4 5 Figure 2 - USB 2.0 High Speed Protection GND (Pin 1) NC (Pin 2) NC (Pin 3) VBus (Pin 6) D+ or D- (Pin 5) D+ or D- (Pin 4) USB Controller USB Connector Pin 1 DD+ Pin 6 Pin 2 Pin 3 Pin 5 Pin 4 Vbus DD+ Gnd (c) 2008 Semtech Corp. 4 www.semtech.com RCLAMP0502N PROTECTION PRODUCTS www..com Applications Information - Spice Model I/O Figure 3 - RCLAMP0502N Spice Model RCLAMP0502N Spice Parameters Parameter IS BV VJ RS IBV CJO TT M N EG (c) 2008 Semtech Corp. Unit Amp Volt Volt O hm Amp Farad sec --eV D1 (LCRD) 1.0E-20 100 0 .7 0.458 1.0 E-3 0.4E-12 2.541E-9 0.058 1.1 1.11 5 D2 (LCRD) 1.0E-20 100 0.7 1.0 1.0 E-3 0.4E-12 2.541E-9 0.058 1.1 1.11 D3 (T VS) 2E-12 9 0.6 2.6 1.0 E-3 56E-12 2.541E-9 0.23 1.1 1.11 www.semtech.com RCLAMP0502N PROTECTION PRODUCTS www..com Outline Drawing - SO-8 Outline Drawing -SLP1210N6 A D B PIN 1 INDICATOR (LASER MARK) E DIMENSIONS INCHES MILLIMETERS DIM MIN NOM MAX MIN NOM MAX A A1 A2 b D E e L N aaa bbb .020 .023 .026 0.00 .001 .002 (.005) .006 .008 .010 .043 .047 .051 .035 .039 .043 .016 BSC .012 .015 .017 6 .003 .004 A aaa C A2 D/2 1 E/2 2 A1 C SEATING PLANE 0.50 0.58 0.65 0.00 0.03 0.05 (0.13) 0.15 0.20 0.25 1.10 1.20 1.30 0.90 1.00 1.10 0.40 BSC 0.30 0.38 0.425 6 0.08 0.10 LxN N e NOTES: bxN bbb CAB 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). Land Pattern -SLP1210N6 P DIMENSIONS DIM C G P X Y Z INCHES (.034) .008 .016 .008 .027 .061 MILLIMETERS (0.875) 0.20 0.40 0.20 0.675 1.55 (C) G Y X Z NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. (c) 2008 Semtech Corp. 6 www.semtech.com RCLAMP0502N PROTECTION PRODUCTS www..com Marking Codes Ordering Information Part Number RCLAMP0502N.TCT Qty per Reel 3,000 Reel Size 7 Inch 0502N RailClamp and RClamp are marks of Semtech Corporation Tape and Reel Specification Pin 1 Location User Direction of feed A0 1.21 0.10 mm B0 1.41 0.10 mm K0 0.74 0.10 mm Device Orientation in Tape Tape Width B, (Max) D 1.5 + 0.1 mm - 0.0 mm (0.59 + .0 0 5 - .0 0 0 ) D1 E 1.750.10 mm (.069.004) F K (MAX) P 4.00.1 mm (.157.004) P0 4.00.1 mm (.157.004) P2 T(MAX) W 8.0 mm + 0.3 mm - 0.1 mm (.312.012) 8 mm 4.2 mm (.165) 0.8 mm 0.05 (.031) 3.50.05 mm (.138.002) 2.4 mm ( .0 9 4 ) 2.00.05mm (.079.002) 0.4 mm (.016) Contact Information Semtech Corporation Protection Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 (c) 2008 Semtech Corp. 7 www.semtech.com |
Price & Availability of RCLAMP0502N
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