RClamp0504P RailClamp Low Capacitance TVS Array

Transcription

1 - RailClamp Description RailClamps are 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 data and transmission lines from overvoltage caused by ESD (electrostatic discharge), CDE (Cable Discharge Events), and EFT (electrical fast transients). The unique design incorporates surge rated, low capacitance steering diodes and a TVS diode in a single package. During transient conditions, the steering diodes direct the transient current to ground. The internal TVS diode clamps the transient voltage to a safe level. The low capacitance array configuration allows the user to protect up to four high-speed data lines. The RClamp0504P is in a 6-pin, RoHS compliant, SLP66P6 package. It measures.6 x.6 x The leads are spaced at a pitch of 0.5 and are finished with lead-free NiPdAu. They may be used to meet the ESD iunity requirements of IEC , Level 4 (5kV air, 8kV contact discharge). The combination of small size, low capacitance, and high ESD surge capability makes them ideal for use in portable applications such as cellular phones, next generation color LCD displays, USB, and multi media card interfaces. Circuit Diagram RClamp0504P RailClamp Low Capacitance TVS Array Features Transient protection for high-speed data lines to IEC (ESD) ±5kV (air), ±8kV (contact) IEC (EFT) 40A (5/50ns) Array of surge rated diodes with internal TVS Diode Small package (.6 x.6) saves board space Protects up to four I/O lines & power line Low capacitance (<3pF) for high-speed interfaces No insertion loss to 2.0GHz Low leakage current and clamping voltage Low operating voltage: 5.0V Solid-state silicon-avalanche technology Mechanical Characteristics SLP66P6 6L package RoHS/WEEE Compliant Nominal Dimensions:.6 x.6 x 0.60 Lead Finish: NiPdAu Molding compound flaability rating: UL 94V-0 Marking : 0504P Packaging : Tape and Reel per EIA 48 Applications USB 2.0 and USB OTG Multi Media Card (MMC) Interfaces SD Card Interfaces MDDI Ports SIM Ports Key Pads Gigabit Ethernet PIN Configuration GND 0.6 SLP66P6 (Bottom View) Nominal Dimensions in Revision 06/0/2007

2 Absolute Maximum Rating Rating Symbol Value Units Peak Peak Pulse Power (tp = 8/20µs) Pulse Current (tp = 8/20µs) P pk 50 Watts I PP 6 A ESD per IEC (Air) ESD per IEC (Contact) V ESD 5 8 kv Operating Temperature T J -55 to +25 C Storage Temperature T STG 55 to C Electrical Characteristics (T=25 o C) Parameter Symbol Conditions Minimum Typical Maximum Units Reverse Stand-Off Voltage V RWM Pin 5 to GND 5 V Reverse Breakdown Voltage V R B I t = ma Pin 5 to GND 6 V Reverse Leakage Current I R V RWM = 5V, T=25 C Pin 5 to GND Clamping Voltage V C I PP = A, tp = 8/20µ s Any I/O pin to GND Clamping Voltage V C I PP = 6A, tp = 8/20µ s Any I/O pin to GND Clamping Voltage V C I PP = 6A, tp = 8/20µ s Pin 5 to GND Junction Capacitance C j V R = 0V, f = MHz Any I/O pin to GND V R = 0V, f = MHz Between I/O pins 3 µ A 5 V 25 V 8 V.9 3 pf 0.80 pf Note : I/O pins are pin, 3, 4, and Semtech Corp. 2

3 Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time Power Derating Curve Peak Pulse Power - P PP (kw) Pulse Duration - tp (µs) % of Rated Power or IPP Ambient Temperature - T A ( o C) Pulse Waveform Clamping Voltage vs. Peak Pulse Current Percent of I PP e -t td = I PP /2 Waveform Parameters: tr = 8µs td = 20µs Time (µs) Clamping Voltage - V C (V) Waveform Parameters: tr = 8µs td = 20µs Pin, 3, 4, or 6 to pin 2 Pin 5 to pin Peak Pulse Current - I PP (A) Forward Voltage vs. Peak Pulse Current Junction Capacitance vs. Reverse Voltage Forward Voltage - V F (V) Waveform Parameters: tr = 8µs td = 20µs Normalized Capacitance Any I/O Pin to Ground Between any two I/O pins f = MHz Peak Pulse Current - I PP (A) Reverse Voltage - V R (V) 2007 Semtech Corp. 3

4 Typical Characteristics Insertion Loss S2 (I/O to ) Analog Crosstalk CH S2 LOG 6 db / REF 0 db : db 900 MHz CH S2 LOG 20 db/ REF 0 db 2: db.8 GHz 3: db 2.5 GHz 0 db -6 db db -8 db -24 db -30 db -36 db MHz 0 MHz 00 MHz GHz 3 GHz START. 030 MHz STOP MHz START. 030 MHz STOP MHz ESD Response (8kV Contact per IEC ) Note: Data is taken with a 0x attenuator 2007 Semtech Corp. 4

5 Applications Information Device Connection Options for Protection of Four High-Speed Data Lines Protection of Four Data Lines and Power Supply Line This device is designed to protect data lines by clamping them to a fixed reference. When the voltage on the protected line exceeds the reference voltage the steering diodes are forward biased, conducting the transient current away from the sensitive circuitry. Data lines are connected at pins, 3, 4 and 6. The center pin should be connected directly to a ground plane. The path length is kept as short as possible to minimize parasitic inductance. Pin 2 is not connected. The positive reference is connected at pin 5. The options for connecting the positive reference are as follows:. To protect data lines and the power line, connect pin 5 directly to the positive supply rail (V CC ). In this configuration the data lines are referenced to the supply voltage. The internal TVS diode prevents over-voltage on the supply rail. 2. In applications where the supply rail does not exit the system, the internal TVS may be used as the reference. In this case, pin 5 is not connected. The steering diodes will begin to conduct when the voltage on the protected line exceeds the working voltage of the TVS (plus one diode drop). Protection of Four Data Lines Using Internal TVS Diode as Reference Figure.. Pin Configuration (Top Side View) Pin Identification, 3, 4, 6 Input/Output Lines 2 Not Connected 5 5V (Optional) or N/ C Center Tab Ground 2007 Semtech Corp. 5

6 Typical Applications SIM Port - Protection of Three Data Lines and VCC USB OTG Receptable Carkit To Phone Mini B Receptable VBus D - D + ID GND Shield Mini A Receptable USB OTG Carkit Protection 2007 Semtech Corp. 6

7 Applications Information - Spice Model Figure - RClamp0504P Spice Model Table - RClamp0504P Spice Parameters Parameter IS BV VJ RS IBV CJO TT U nit D (LCRD) D 2 (LCRD) D3 (TVS) Amp E-20 E E- 2 Volt Volt Ohm Farad.5E-2.5E-2 2E- 2 Amp E-3 E-3 E-3 sec 2.54E E E- 9 M N EG ev Semtech Corp. 7

8 Outline Drawing - SLP66P6 A D B PIN INDICATOR (LASER MARK) aaa C A2 E D 2 E A A C LxN E/2 SEATING PLANE DIMENSIONS INCHES MILLIMETERS DIM MIN NOM MAX MIN NOM MAX A A A2 (.006) (0.5) b D D E E e.020 BSC 0.50 BSC L N 6 6 aaa bbb e N bxn bbb C A B D/2 NOTES:. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. Land Pattern - SLP66P6 Z G Y P X F (C) DIMENSIONS DIM B INCHES.05 MILLIMETERS.30 C P F G X Y Z B NOTES:. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET 2007 Semtech Corp. 8

9 Marking Ordering Information Part Number Lead Finish Qty per Reel Reel Size 0504P RClamp0504P.TCT Pb Free 3,000 7 Inch RailClamp and RClamp are marks of Semtech Corporation Tape and Reel Specification Device Orientation in Tape Pin in upper left towards sprocket holes A0 B0 K0.78 +/ / /-0.05 Tape Width B, (Max) D D E F K (MAX) P P0 P 2 T(MAX) W ) 0.5 ± ±.0 3.5± ±0. 4.0±0. 2.0± Contact Information Semtech Corporation Protection Products Division 200 Flynn Rd., Camarillo, CA 9302 Phone: (805)498-2 FAX (805) Semtech Corp. 9