AUTOMOTIVE APPLICATIONS

Transcription

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

2 Today s automobile has come a long way since the 70s when the engine control unit (ECU) also known as the power control module (PCM) was first put into play. According to a recent New York Times article, modern cars now have from 0 to 00 microprocessor-controlled devices (ECUs) within. These devices have long been used to control everything from critical safety systems like brakes and airbags; to control convenience features like telematics and navigation. More and more automobiles come equipped with more and more advanced electronic control systems. However, they are not just being added as features but, also as requirements. For example, direct tire pressure monitoring systems (TPMS) are now required on all new cars sold in the EU. Newer systems now come standard with all types of comfort systems, such as heated / cooled seats and all types of safety systems, such as advanced driver assistance systems with collision avoidance and parking assist features. TRANSIENTS IN AUTOMOTIVE SYSTEMS TIME DURATION CAUSE VOLTAGE AMPLITUDE ENERGY LEVEL FREQUENCY OF OCCURANCE 400ms Load Dump (Disconnection of battery while at high charging) < 0V > 0J Infrequent Steady State Failed Voltage Regulator V - Infrequent < 0µs Inductive Load Switching 0V to 00V < J Often 00ms Alternator Field Decay -00V to -40V < J Each Turn-Off 0ms Ignition Pulse, Battery Disconnected < 7V < 0.J < 00Hz Infrequent ms Harness Coupling < 00V < J Often < 0ns Electrostatic Discharge < kv < 0mJ Infrequent Automotive manufacturers continue to turn to IC-based systems for new features and capabilities. With this trend, the need for more circuit protection for these systems also grows alongside. As noted, there are dozens of applications that need circuit protection. They include USB ports, Ethernet ports, CANBus and LINBus lines, antenna, display interfaces, power systems, fuel injection management systems, and many more. Electrical transients present a top critical risk to damaging these systems. Electrical transients also increase servicing and warranty costs for auto manufacturers. Therefore, proper circuit protection is an important factor of any automotive design process. There are also many mandatory safety systems requiring advanced electronic components while there is an ever-increasing reliance on electronic technologies within the automotive sector. There are many common transients in automotive systems that impact performance of the electronic systems. They can be generated from many different sources, from common electrostatic discharges to disconnecting a battery. Automotive designers of Infotainment, lighting, drive-train, body or chassis/safety groupings need to consider the circuit protection to combat these transients. SELECTION GUIDE APPLICATION PREFERED DEVICES ALTERNATE DEVICES Antenna PAM0SDxx/C Series, PAM0SDxxCI Series PAM0SC70C, PAMDFL0, PAMDFL0P Battery (Load Dump) PAMDOACxxA/CA Series, PAMDOAAxxA/CA Series, PAM0DOAAxxA/CA Series, PAMDOABxxA/CA Series, PAMDOABxxA/CA Series, PAMDOABxxA/CA Series, PAMS Series, PAMS Series, PAMS Series PAMAL0A CANBus PAMCAN, PAMCAN PAM04ST400, PAM0STxxC Series Control Buttons Control Lines PAM7DFL0C PAMDOACxxA/CA Series, PAMDOAAxxA/CA Series, PAM0DOAAxxA/CA Series, PAMDOABxxA/CA Series, PAMDOABxxA/CA Series, PAMDOABxxA/CA Series PAMSC700H Display Interfaces PAMST0 PAM04DF004, PAM4DF0 Ethernet PAM0SC70004F PAMSO0, PAMSO4 FlexRay Bus PAMFLEX PAM0STxxC Series Fuel Injection System HDMI PAM0SDxx/C Series, PAM0STxxC Series PAM04DF004 LINBus PAMLIN PAMLIN Power Systems PAM0SD0HP, PAM0STxxC Series, PAMS Series, PAMS Series, PAMS Series PAMDFKxx Series, PAMDOACxxA/CA Series, PAMDOAAxxA/CA Series, PAM0DOAAxxA/CA Series, PAMDOABxxA/CA Series, PAMDOABxxA/CA Series, PAMDOABxxA/CA Series USB PAM0SC70004F PAM04DF004, PAM04ST400 Automotive electronic systems design engineers should be aware of requirements set forth by the International Organization for Standardization (ISO). ISO 70 is for road vehicles and covers environmental conditions and testing for electrical and electronic equipment. Released in 00, ISO 70- was prepared by Technical Committee ISO/TC to replace ISO77 for load dump, the pulse a and b portion. Further revisions to ISO 70- were released in 0. ISO 70- applies to electric and electronic systems/components for road vehicles. It describes potential environmental stresses and specifies tests and requirements for the specific mounting location on/in the road vehicle. The Automotive Electronics Council (AEC-Q0) provides a discrete semiconductor qualification standard for automotive applications including circuit protection requirements: AEC-Q0-00 (electrostatic discharge [ESD] test - human body model); AEC-Q0-00 (ESD test -machine model); AEC-Q0-00 (wire bond shear test); AEC-Q0-004 (miscellaneous test methods such as unclamped inductive switching, dielectric integrity, and destructive physical analysis); and AEC-Q0-00 (ESD test - capacitive discharge model).

3 Antenna 47µH V Single Line CANBus 00pF CAN Transceiver R Load 0pF MMIC 0nH PAM0SDxxC Figure. Antenna Protection Using PAM0SDxxC Series PAM0STC Figure. CANBus Protection Using PAM0STC SPLIT CAN_H CANBus Transceiver R T/ R T/ CANBus KEYPAD * 0 # 7 4 R R R CAN_L Common Mode Choke C G (Optional) PAMCAN PAM7DFLC0C C C C C4 Figure. CANBus Protection Using PAMCAN PAM7DFLC0C Figure 4. Control Button Protection Using PAM7DFLC0C Power Application (e.g., Electro Motor, Inductive Loads) Application (e.g., Voltage Regulator, Microcontroller) LIN Node Connector BAT C BAT LIN LIN Bus Transceiver C BAT 4 PAMLIN Figure. LINBus Protection Using PAMLIN

4 TPOPA TPONA Ethernet Transceiver PAM0SC70004F TPOPB TPONB TPOPC TPONC PAM0SC70004F RJ4 Connector Quad Transceiver TPOPD TPOND Figure. GigabitE Interface Protection Using PAM0SC70004F V Battery V Voltage Regulator Ground PAM0STC PAM0SD0HP Figure 7. Power Systems Protection Using PAM0STC and PAM0SD0HP VBUS D+ D- VBUS D+ D- 4 DUAL USB HOST VBUS D+ D- PAM0SC70004F VBUS D+ D- 4 Figure. USB.0 Interface Protection Using PAM0SC70004F

5 To Injection Valve D BM FlexRay Bus PAM0SD0C/4C FlexRay Transceiver R T/ To Engine Control Unit (ECU) G BP Common Mode Choke R T/ C G (Optional) PAMFLEX PAM0STC Figure 0. FlexRay Bus Protection Using PAMFLEX S Figure. Fuel Injection Management System Protection Using PAM0SD0C, PAM0SD4C and PAM0STC PAM04DF004 0 TMDS DATA 4 TMDS DATA 7 4 PAM04DF004 TMDS CHANNELS 0 7 TMDS DATA 0 0 TMDS CLK 7 4 PAM04DF004 CEC 0 CEC LINE SCL 4 NC DDC I C BUS SDA HP DETECT HDMI SOURCE/SINK +V PAM0SD0HP V CC BUS HP DETECT Figure. HDMI Protection Using PAM04DF004

6 ML Lane 0(p) ML Lane 0(p) V IN V ML Lane 0(n) ML Lane 0(n) ML Lane (p) ML Lane (n) ML Lane (p) ML Lane (n) Load Dump Transient + S - D PAMS Series Figure. Battery (Load-Dump) Protection Using PAMS Series ML Lane (p) ML Lane (p) ML Lane (n) ML Lane (p) PAMST0 ML Lane (p) ML Lane (p) ML Lane (n) ML Lane (p) PWR PAMST0 PWR Figure. Display Protection Using PAMST0 Load Dump Transient + S - V IN V R 4.K D PAMDOACA Q C 47nF R 0Ω Q RSNS 0mΩ R 7.k C L µf OUTPUT CLAMP AT V C 0.µF R4 7k R 4.k V CC SHDN UV 4 GATE SNS OUT FB R 4.k V CC DC/DC CONVERTER ENOUT SHDN 7 OV TMR 0.µF FLT 0 FAULT Figure 4. Battery (Load-Dump) Protection Using PAMDOACA

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 PAM0SC70C SC-7 PAMCAN SOT- PAMFLEX SOT- PAMLIN.0/4.0 7./..0/ SOD- PAM0SDxx/C SOD- PAMCAN SOT- PAMLIN SOD- PAM0SDxxCI SOD- PAM04DF DFN-0 PAM04ST SOT-4 PAM0SC70004F SC70-L PAMSxx * DO-AB PAM0SC70S * SC-7 PAMSxx * DO-AB PAM07DFK * DFN-KW PAM0SDxx/C /00 SOD- PAMSxx * DO-AB PAM0SD0HP SOD- PAM0STxxC SOT- PAMSO SO- PAMSO P 00 SO- PAMST SOT-- PAM4ST0LCC SOT- PAMST SOT-4 PAMAL0A * AXIAL PAM7DFLC0C * DFN- PAMDFLC DFN- PAMDFL0P DFN- PAM0ST SOT- PAMSC700H SC-7 PAM4DF DFN- PAMDFKxx * DFN-KW PAMSD SOD- PAM7ST4LC SOT- PAMDOACxxA/CA * DO-4AC PAMDOAAxxA/CA * DO-4AA PAM0DOAAxxA/CA * DO-4AA PAMDOABxxA/CA * DO-4AB PAMDOABxxA/CA * DO-4AB PAMDOABxxA/CA * DO-4AB Notes. I PP and P PP 0/000µs.

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. South Fair Lane Tempe, Arizona USA Phone: FAX: ProTek Devices (Asia Pacific) Pte. Ltd. Ubi Road, #0-, 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//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 (07) - 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.