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RClamp0531T Dataheets PDF



Part Number RClamp0531T
Manufacturers Semtech
Logo Semtech
Description Ultra-Low Capacitance 1-Line ESD protection
Datasheet RClamp0531T DatasheetRClamp0531T Datasheet (PDF)

PPRROOTTEECCTTIIOONN PPRROODDUUCCTTSS - RailClamp® Description RailClamp is an ultra low capacitance Transient Voltage Suppressor (TVS) designed to protect high speed data interfaces. This device 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). The RClampTM0531T has a maximum capacitance of only 0.

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PPRROOTTEECCTTIIOONN PPRROODDUUCCTTSS - RailClamp® Description RailClamp is an ultra low capacitance Transient Voltage Suppressor (TVS) designed to protect high speed data interfaces. This device 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). The RClampTM0531T has a maximum capacitance of only 0.80pF. This allows it to be used on circuits operating in excess of 2.5GHz without signal attenuation. They may be used to meet the ESD immunity requirements of IEC 61000-4-2. The RClamp0531T is in a 2-pin SLP1006P2T package measuring 1.0 x 0.6 x 0.4mm. The leads are spaced at a pitch of 0.65mm and feature a lead-free finish. Each device will protect one high-speed line operating at 5 volts. It gives the designer the flexibility to protect single lines in applications where arrays are not practical. The combination of small size, low capacitance, and high ESD surge capability makes them ideal for use in applications such as cellular phones and digital video interfaces. RClamp0531T Ultra-Low Capacitance 1-Line ESD protection Features ‹ Transient protection for data lines to IEC 61000-4-2 (ESD) ±20kV (air), ±12kV (contact) IEC 61000-4-4 (EFT) 40A (tp = 5/50ns) Cable Discharge Event (CDE) ‹ Ultra-small package (1.0 x 0.6 x 0.4mm) ‹ Protects one I/O line ‹ Low capacitance: 0.8pF ‹ Low clamping voltage ‹ Low operating voltage: 5.0V ‹ Solid-state silicon-avalanche technology Mechanical Characteristics ‹ SLP1006P2T package ‹ Molding compound flammability rating: UL 94V-0 ‹ Marking: Marking code + date code ‹ Packaging : Tape and Reel ‹ Lead Finish: NiPdAu ‹ Pb-Free, Halogen Free, RoHS/WEEE Compliant Applications ‹ Cellular Handsets & Accessories ‹ Digital Visual Interface (DVI) ‹ FM Antenna ‹ MDDI Ports ‹ USB Ports ‹ PCI Express ‹ Serial ATA Dimensions Schematic & PIN Configuration 1.0 0.60 0.65 0.40 Maximum Dimensions (mm) SLP1006P2T (Bottom View) Revision 03/07/2011 1 www.semtech.com PROTECTION PRODUCTS Absolute Maximum Rating Rating Peak Pulse Power (tp = 8/20μs) Peak Pulse Current (tp = 8/20μs) ESD per IEC 61000-4-2 (Air) ESD per IEC 61000-4-2 (Contact) Operating Temperature Storage Temperature Electrical Characteristics (T=25oC) RClamp0531T Symbol Ppk IPP VESD TJ TSTG Value 80 4 +/- 20 +/- 12 -55 to +125 -55 to +150 Units Watts A kV °C °C Parameter Reverse Stand-Off Voltage Reverse Breakdown Voltage Reverse Leakage Current Clamping Voltage Clamping Voltage Symbol VRWM VBR IR VC VC Junction Capacitance Cj Conditions It = 1mA VRWM = 5V, T=25°C IPP = 1A, tp = 8/20μs IPP = 4A, tp = 8/20μs VR = 0V, f = 1MHz Minimum 6 Typical 9.3 Maximum 5 11 Units V V 0.010 0.100 μA 12 V 20 V 0.50 0.80 pF © 2011 Semtech Corp. 2 www.semtech.com RClamp0531T PROTECTION PRODUCTS Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time 10 Peak Pulse Power - PPP (kW) 1 0.1 0.01 0.1 1 10 Pulse Duration - tp (us) 100 % of Rated Power or IPP 110 100 90 80 70 60 50 40 30 20 10 0 0 Power Derating Curve 25 50 75 100 125 Ambient Temperature - TA (oC) 150 Clamping Voltage -VC (V) Clamping Voltage vs. Peak Pulse Current 16 14 12 10 8 6 4 2 0 0 123 Peak Pulse Current - IPP (A) Waveform Parameters: tr = 8µs td = 20µs 45 Cj(VR) / Cj(VR=0V) Normalized Capacitance vs. Reverse Voltage 1.100 1.050 1.000 0.950 0.900 0.850 0.800 0 f = 1 MHz 1234 Reverse Voltage (VR) 5 Insertion Loss S21 CH1 S21 LOG 6 dB / REF 0 dB 0 dB -6 dB -12 dB -18 dB -24 dB -30 dB -36 dB -42 dB -48 dB 1 MHz START. 030 MHz 10 MHz 1: -0.15390 dB 800 MHz 5 2: -0.1480 dB 12 3 4 900 MHz 3: 0.01210 dB 1.8 GHz 4: 0.09410 dB 2.5 GHz 100 MHz 13 GHz GHz STOP 3000.000000 MHz © 2011 Semtech Corp. 3 USB 2.0 Eye Pattern with RClamp0531T www.semtech.com PROTECTION PRODUCTS ESD Clamping (+8kV Contact per IEC 61000-4-2) RClamp0531T ESD Clamping (-8kV Contact per IEC 61000-4-2) Note: Data is taken with a 10x attenuator Note: Data is taken with a 10x attenuator © 2011 Semtech Corp. 4 www.semtech.com PROTECTION PRODUCTS Applications Information Device Connection Options These low capacitance TVS diodes are designed to provide common mode protection for one high-speed line or differential protection for one line pair. The device is bidirectional and may be used on lines where the signal polarity is positive and negative. Circuit Board Layout Recommendations for Suppression of ESD. Good circuit board layout is critical for the suppression of ESD induced transients. The following guidelines are recommended: z Place the TVS near the input terminals or connec- tors to restrict transient coupling. z Minimize the path length between the TVS and the protected line. z Minimize all conductive loops including power and ground loops. z The ESD transient return path to ground should be kept as short as possible. z Never ru.


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