COMMUNICATIONS APPLICATIONS

Transcription

1 COMMUNICATIONS APPLICATIONS Only One Name Means ProTek Tion Advanced circuit protection devices for overvoltage and overcurrent transient events

2 Communication interfaces are vulnerable to a variety of transient voltage threats such as electrostatic discharge (ESD), cable discharge events (CDE) and lightning surge. These threats provide the system designer with the challenge to incorporate over-voltage protection that meets or exceeds circuit protection standards (see Table ), while not degrading the transmission rate. Key STANDARD TABLE - CIRCUIT PROTECTION STANDARDS PEAK SURGE VOLTAGE - V VOLTAGE WAVEFORM - µs PEAK SURGE CURRENT - A CURRENT WAVEFORM - µs Bellcore 0 /0 00 /0 GR / /000 ITU-T-K0 & K /00 00 /0 FCC Part 00 0/0 00 0/0 IEC ±kv Contact, ±kv Air /0ns 0 /0 IEC kv, 4kV /0ns 40 /0 IEC kv, kv, 4kV./0 4, 4, 9 /0 parameters, such as working voltage, clamping voltage and capacitance, must be taken into consideration when choosing an overvoltage protection device. Device capacitance is often a decisive factor in higher data rate applications (see Table ). A TVS diode, like other semiconductors, has an inherent capacitance. Capacitance is dependent on junction area, doping concentration and the voltage across the diode terminals. The reverse bias voltage is inversely related to device capacitance, as reverse bias increases the device capacitance decreases. As the doping concentration increases, the voltage rating of the diode decreases and device capacitance increases. On the other hand, devices with higher voltage values have smaller junction capacitance. Larger junction area relates to higher current handling capability. But as the device or junction size increases the device capacitance increases along with it. TABLE - DATA TRANSMISSION RATES APPLICATION LinBus 0.0 RS- 0.0 CanBus/Device Net.0 T.44 E.04 IC.4 Ethernet 0 FlexRay 0 USB. E 4. RS-4 T 44.7 DATA RATE Mbit/S CAPACITANCE pf < 0 <0 < 0 Fast Ethernet 00 < T 400. USB.0 40 E.4 IEEE-94b 7.4 GigabitE 000 DVI 90 USB DisplayPort 400 SATA USB HDMI. 000 HDMI < < One of the characteristics of a capacitor is lower impedance to time varying signals. The higher the frequency of a signal, lower the resistance offered to it. So when a TVS diode is used in a high data rate application, the intrinsic device capacitance tends to attenuate the signal. Hence, when the device capacitance is large the attenuation suffered by the high frequency signal is greater. Figure is a very good approximation of device capacitance and the data rate it can support. The curve represents the approximate limiting frequency for the capacitance(y-axis). A device with a capacitance value below the curve should not have any appreciable attenuation for a given signal. To satisfy an ever-demanding market for greater safety and reliability of electronics, ProTek Devices continues to work with the major electronic equipment manufactures to develop next generation products that are protected with ProTek Devices circuit protection components. ProTek Devices offers low profile, space saving devices that provide low working voltage, lower clamping voltages and ultra low capacitance for high-speed communication applications.

3 00 Figure. TVS Capacitance vs. Transmission Rate Capacitance (pf) KB 00KB MB 0MB 00MB GB 0GB Baud Rate - Bits per Second SELECTION GUIDE APPLICATION PREFERED MULTI-LINE DEVICES PREFERED SINGLE-LINE DEVICES ALTERNATE DEVICES CanBus/Device Net PAMCAN PAMCAN DVI PLR00, PLR00, PLR404 GBLCxxCI Series, PLR0 PLR004F, PLR00, PLR04 esata PLR004F GBLCxxCI Series, PLR0 PLR00, PLR04 Ethernet PLRxx Series, PLR0 PLR Fast Ethernet PLC0-, SMPLLCxx-P Series, SRV0-4 GBLCxxC Series PLR04, SRV0-4M, SRV0-4LC FlexRay PAMFLEX Gigabit Ethernet PAZC099, PLR004F, PLR0, PLR4, PLR404, SRV0-4, SRV0-4-A, SRV-4, SRV.-4 GBLCxxCI Series, GBLC0CIHP PLR04, PLR, SLUV.-4 HDMI. PAZC099, PLR00 GBLCxxCI Series, PLR0 PLR004F, PLR04 HDMI.0 PLR04LC, PLR04LC, PTB0-ULC PLR04 LINBus PAMLIN PAMLIN RS-4 PSLCxxC Series, PSM7 PSDxx Series, PSOTxxC Series 4ELC Smart Battery (IC) DSOT00, VSMF0LC GBLCxxCI Series, PLR0, PSDxx Series, PSOTxxC Series VSMF0LCC T/E - T/E PLR0-./PLR04 GBLCxxC Series PLC0-/SRV0-4 USB.0 PLR00, PLR004F, PLR00 GBLCxxCI Series, PLR0 PLR00-, PLR04, SRV0-4LC USB.0 PLR00, PLR00LP, PLR04 GBLCxxCI Series, PLR0 PLR00, SRV0-4LC USB. PLR00-/PLR04LC SRV0-4LC xdsl DSL0-4 GBLCxxCI Series, PLR0 DSL0-4T USB. TRANSCEIVER VBUS D+ D- SSTX+ SSTX- SSRX+ SSRX- VBUS D+ D- SSTX+ SSTX- SSRX+ SSRX- PSD0 PLR00- PLR04LC Figure. USB. Interface Protection Using PLR00-, PLR04LC and PSD0

4 TPOPA TPONA 7 TPOPB ETHERNET TRANSCEIVER TPONB TPOPC 4 PLR0 QUAD TRANSCEIVER RJ4 CONNECTOR TPONC 7 TPOPD TPOND 4 PLR0 Figure. GigabitE Interface Protection Using PLR0 BAT TS PLRO0 POS TS Power Management IC Li-Ion/Polymer Cell DSOT00 Figure. Smart Battery Protection Using DSOT00 and PLRO0(for Overcurrent Protection) RS-4 Driver Twisted Pair RS-4 Driver PSM7 +V/-7V PSM7 +V/-7V Figure 4. RS-4 Driver Application Using PSM7 Devices

5 esata PORT TX+ TX- TX+ TXeSATA INTERFACE RX+ RX- PLR004F RX+ RX- Figure. esata Interface Protection Using PLR004F PLR04LC 0 TMDS DATA 9 4 TMDS DATA 7 4 PLR04LC TMDS CHANNELS 0 7 TMDS DATA TMDS CLK 7 4 PLR04LC CEC 0 CEC LINE SCL 9 4 NC DDC I C BUS SDA HP DETECT HDMI SOURCE/SINK +V PSD0HP 9 V CC BUS HP DETECT Figure. HDMI.0 Interface Protection Using PLR04LC and PSD0HP for VCC Bus Protection

6 R P V CC MOV R B VDSL Driver R B Feedback R T To RJ Connector DSL0-4 V EE MOV R P Figure 7. xdsl Interface Protection Using DSL0-4 USB.0 TRANSCEIVER VBUS D+ D- SSTX+ SSTX- SSRX+ SSRX- VBUS D+ D- SSTX+ SSTX- SSRX+ SSRX- PSD0 PLR00 Figure. USB.0 Interface Protection Using PLR00 with PSD0 for VCC Bus Protection Rx+ RJ PLC0- or PLC0-. Tx+ SRV0-4 or PLR04 E/T Transceiver RJ Rx- Tx- PLC0- or PLC0-. Figure 9. T/E Protection Using SRV0-4/PLC0- or PLR04/PLC0-.

7 PART NUMBER STAND-OFF VOLTAGE V WM VOLTS OVERVOLTAGE PART SPECIFICATIONS BREAKDOWN VOLTAGE V (BR) VOLTS CLAMPING VOLTAGE V C VOLTS PEAK PULSE CURRENT /0μs I PP AMPS MAXIMUM LEAKAGE CURRENT I D μa TYPICAL CAPACITANCE C pf NO. OF LINES POWER /0μs WATTS PACKAGE 4ELC ± Module DSL SOT-- DSL0-4T SOT-- DSOT SOT- GBLCxxC SOD- GBLCxxCI SOD- GBLC0CIHP SOD- PAMCAN SOT- PAMFLEX SOT- PAMLIN.0/4.0 7./..0/ SOD- PAMCAN SOT- PAMLIN SOD- PAZC SOT-- PLC SO- PLC SO- PLR SOT-4 PLR SC-9 PLR004F SC70-L PLR DFN- PLR00LP DFN- PLR DFN-0 PLR04LC DFN-0 PLR DFN- PLR04LC DFN-0 PLR DFN-0 PLRxx DFN- PLR DFN- PLR DFN-0 PLR DFN- PLR DFN-0 PLR MSOP-0 PSDxx SOD- PSLCxxC SOT-4 PSM7 7.0,.0 7.,..0, , 7 00 SOT- PSOTxxC SOT- PTB0-ULC DFN- SLVU SO- SMPLLCxx-P SO- SRV SOT-- SRV0-4-A SOT-- SRV0-4LC SOT-- SRV0-4M SOT-- SRV DFN-0 VSMF0LC SOT-9 VSMF0LCC SOT-9

8 COMPANY INFORMATION In business more than 0 years, ProTek Devices is a privately held semiconductor company. The company offers a product line of overvoltage protection and overcurrent protection components. These include transient voltage suppressor array (TVS arrays) avalanche breakdown diode, steering diode TVS array and electronics SMD chip fuses. These components deliver circuit protection in electronic systems from numerous overvoltage and overcurrent events. They include lightning; electrostatic discharge (ESD); nuclear electromagnetic pulses (NEMP); inductive switching; and electromagnetic interference (EMI) / radio frequency interference (RFI). CONTACT US ProTek Devices L.P. 99 South Fair Lane Tempe, Arizona USA Phone: FAX: ProTek Devices (Asia Pacific) Pte. Ltd. Ubi Road, #0-9, Zervex Singapore 40 Phone: FAX: By Asia Sales: asiasales@protekdevices.com Europe Sales: europesales@protekdevices.com U.S. Sales: ussales@protekdevices.com Distributor Sales: distysales@protekdevices.com Customer Service: service@protekdevices.com Technical Support: support@protekdevices.com Web ROHS & REACH COMPLIANCE All devices, with the exception the PAMAL0A(RoHS, exemption #7) are Lead-Free, RoHS & REACH compliant. These products are designated as lead free and meet the requirements of the European Union s restriction on the use of hazardous substances in electrical equipment as stated in (RoHS) direction, 00/9/EC. ProTek Devices defines lead free as products that are compatible with current RoHS requirements for the banned substances: Lead (Pb, <000ppm), Cadmium (Cd, <00ppm), Mercury (Hg, <000ppm), Hexavalent Chromium (Cr+, <000ppm), Poly Brominated Biphenyls (PPB, <000ppm), Poly Brominated Diphenyl Ethers (PBDE, <000ppm). This includes the requirements that lead not exceed 0.% by weight in homogeneous materials. STANDARD TAPE & REEL NOMENCLATURE -T7 for 7 Reels -T for Reels -TS for sample size Reels Not all products are available in 7 or reels. Quantities per reel vary depending upon package size. Please consult product data sheet or the factory for ordering information regarding a specific part series. All data sheets can be found on ProTek Devices website: COPYRIGHT ProTek Devices (0) - This literature is subject to all applicable copyright laws and is not for resale in any manner. SPECIFICATIONS: ProTek Devices reserves the right to change the electrical and or mechanical characteristics described herein without notice. DESIGN CHANGES: ProTek Devices reserves the right to discontinue product lines without notice and that the final judgment concerning selection and specifications is the buyer s and that in furnishing engineering and technical assistance. ProTek Devices assumes no responsibility with respect to the selection or specifications of such products. ProTek Devices makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ProTek Devices assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability without limitation special, consequential or incidental damages. LIFE SUPPORT POLICY: ProTek Devices products are not authorized for use in life support systems without written consent from the factory.