MAX20042 MAX20044 Atootie HiSpee USB 2.0 Protectors

MAX20042F–MAX20044FAutomotive Hi-Speed USB 2.0 ProtectorsTypical Operating Characteristics (continued)(TA 25 C, unless otherwise noted.)HVBUS LEAKAGE CURRENT (µA)130CROSSTALK (dB)-20120350100HVBUS SHORTED TO 6V250-40110HVBUS SHORTED TO 18V300-309020080400250-60200BUS ON RESISTANCEvs. TEMPERATUREtoc13806085105105FREQUENCYVBUS 5.00VVBUS 4.75VHVBUS SHORT-TO-BATTERYTURN-OFF iv20VFAULT0852V/divPOWERED10540µs/divON RESISTANCE (mOhm)INRUSH CURRENT EN ON RESPONSEWITH RC LOADINRUSH CURRENT EN ON RESPONSEWITH RC LOADHVBUS SHORT-TO-BATTERYTURN-OFF RESPONSEtoc18toc17toc16VFAULT5V/divVBUS60BUS On Resistance Histogram5103560TEMPERATURE ( C)35TEMPERATURE ( C)10-15101550-40-1535VBUS 5.25V40-40TEMPERATURE ( C)4070RON (mΩ)3545IL 500mA601015030060-15200HVBUS SHORTED TO 5VHVBUS SHORTED TO 535070-40HVBUS SHORTEDSHORTED TOTO 18V 18VHVBUS4501001000250500150100FREQUENCY (MHz)300550-5010toc12VBUS 0V,0V, VVIN 0V0VVBUS IN VEN 0VVEN 0V600140400HVBUS LEAKAGE CURRENTvs. TEMPERATURE650150VBUS 0V, VIN 0VVEN 0V450-10toc11HVBUS LEAKAGE CURRENT (µA) - 5VHVBUS LEAKAGE CURRENTvs. TEMPERATURE500HVBUS LEAKAGE CURRENT (µA)toc10HVBUS LEAKAGE CURRENT (µA) - 2V/divVHVBUS2V/div100µFVFAULT2V/divNOT v1ms/divIHVBUS2A/div1ms/divMaxim Integrated 9

MAX20042F–MAX20044FAutomotive Hi-Speed USB 2.0 ProtectorsTypical Operating Characteristics (continued)(TA 25 C, unless otherwise noted.)HVBUS OVERCURRENT AUTORETRY RESPONSE(VHVBUS VSHRT)HVBUS OVERCURRENT AUTORETRY RESPONSE(VHVBUS VSHRT)SHORT-CIRCUIT CURRENT, DEVICE ENABLEDINTO 020FREQUENCY25FREQUENCY501510500USB 2.0 HIGH-SPEED DIAGRAM(NO TUNING COMPONENTS)USB 2.0 HIGH-SPEED EYE DIAGRAMW/STANDARD EV KIT TUNING COMPONENTStoc26VBUS5V/div0.40.2DIFFERENTIAL SIGNAL (V)VFAULT5V/div0.0-0.2IHVBUStoc270.4DIFFERENTIAL SIGNAL (V)VHVBUS5V/div0A2015CURRENT-LIMITTHRESHOLD (A)toc253.3V25CURRENT-LIMITTHRESHOLD (A)HVBUS INRUSH CURRENT FORSHORT-TO-GROUND RESPONSE5Vtoc2410CURRENT-LIMITTHRESHOLD (A)5V5V/divMAX20044FCURRENT-LIMIT ms/divMAX20043FCURRENT-LIMIT -LIMIT /div20µs/divwww.maximintegrated.com0.00.51.0TIME (ns)1.52.00.00.51.0TIME (ns)1.52.0Maxim Integrated 10

MAX20042F–MAX20044FAutomotive Hi-Speed USB 2.0 ProtectorsPin ConfigurationTOP VIEWI.C. 1 16 I.C.15 BUSHVBUS 2HVBUS 3GND 4HVD- 5MAX20042FMAX20043FMAX20044FHVD 614 BUS13 GND12 GND11 END- 710 FAULTD 89 INQSOPPin DescriptionPINNAMEFUNCTION1, 16I.C.2, 3HVBUS4, 12, 13GNDGround5HVD-High-Voltage-Protected USB Differential Data D- Output. Connect HVD- directly to USB connector D-.6HVD High-Voltage-Protected USB Differential Data D Output. Connect HVD directly to USB connector D .7D-USB Differential Data D- Input. Connect D- to low-voltage USB transceiver D-.8D USB Differential Data D Input. Connect D to low-voltage USB transceiver D .9INLogic Power-Supply Input. The supply voltage range is from 3.0V to 3.6V. Connect a 0.1µF and 10µFcapacitor from IN to GND. Place these components on the same plane as the IC, close to the IN and GNDpins.10FAULT11EN14, 15BUSInternal Connection. Must be left unconnected.Protected BUS Output. Connect HVBUS directly to the USB connector. Connect both HVBUS outputs togetherfor proper operation. Connect a 20V zener diode and a 0.1µF and 10µF capacitor from HVBUS to GND.Open-Drain Fault Indicator Output. Used to indicate if an overvoltage condition exists on HVD-, HVD ,or HVBUS, if an overcurrent condition exists on HVBUS, if a short-to-GND exists on HVBUS, or if anovertemperature condition occurs.Active-Low Enable Input. Drive EN low to enable the device.USB Power Supply. Connect BUS to USB 5V supply. Connect both BUS inputs together for properoperation. Connect a 0.1µF and a 100µF, low-ESR ceramic capacitor from BUS to GND.www.maximintegrated.comMaxim Integrated 11

MAX20042F–MAX20044FDetailed DescriptionThe MAX20042F, MAX20043F, and MAX20044Fdevices provide high ESD and short-circuitprotection for the low-voltage internal USB data andUSB power line in automotive radio, navigation, connectivity, and USB hub applications. The devicessupport both USB Hi-Speed (480Mbps) and USB fullspeed (12Mbps) operation.The short-circuit protection features include short-to-battery on the protected HVBUS, HVD , and HVD- outputs,as well as short-to-HVBUS on the protected HVD andHVD- outputs. These devices are capable of a short-tobattery condition of up to 18V. Short-to-GND protectionand overcurrent protection are also provided on the protected HVBUS output to protect the internal BUS powerrail from overcurrent faults.The devices feature high ESD protection to 15kV AirGap Discharge and 8kV Contact Discharge on all protected HVBUS, HVD , and HVD- outputs.The devices feature a low on-resistance (RON) 0.14Ω(max) USB power switch and two low on-resistance(RON) of 4Ω (typ) USB 2.0 switches. These devices alsofeature an enable input, a fault output, a 10ms fault-recovery time, a 1ms overcurrent blanking time, and anintegrated overcurrent autoretry.BUS Undervoltage Lockout ( Power-On Reset)The devices have a 4.2V (typ) undervoltage-lockoutthreshold (VUVLO). When VBUS is less than VUVLO,FAULT is enabled and all the device switches are highimpedance.HVBUS Overvoltage ProtectionThe devices have a fixed 5.57V (typ) HVBUS protectiontrip threshold; when HVBUS rises from VBUS to 5.57V,the device is turned off. Connect a 20V zener diode orRC snubber network from HVBUS to GND to limit positiveinductive voltage spikes that are caused by the inductance from long wires at turn-off.Automotive Hi-Speed USB 2.0 ProtectorsHVBUS Overcurrent ProtectionThe devices have a 0.65A/1.0A/1.3A (typ) forwardcurrent threshold ITHR. When the HVBUS forwardcurrent exceeds the ITHR threshold, the device is turnedoff. Forward current is defined as current into BUS andout of HVBUS. See the Functional Diagram.HVD and HVD- Overvoltage ProtectionThe devices have a 4.1V (typ) overvoltage threshold(VOV D). When HVD , or HVD- is greater than VOV D,FAULT is enabled and all the device switches are highimpedance. Note that HVD and HVD- do not have shortto-ground protection. Forward current is limited by theupstream transceiver.FAULT OutputFAULT goes low when a fault is detected on HVD , HVD-,or HVBUS. The FAULT output is asserted low when thedevice is enabled and the switches are disabled due toa fault. Fault detection includes short-to-battery, shortto-GND or overcurrent on HVBUS, and short-to-batteryor short-to-HVBUS on HVD or HVD-. Connect a 100kΩpullup resistor from FAULT to IN.EN InputEN is an active-low enable input. Drive EN low for normaloperation and enable the protection switches. This allowsBUS power, D , and D- USB signaling to pass throughthe device if a fault is not present. Drive EN high to disable the device.The MAX20042F, MAX20043F, and MAX20044F devicessupport USB OTG. With these units, disabling the devicethrough the EN pin disables the 5V BUS power switch,but leaves the D and D- data switches closed. Thisallows for a downstream device to assume the role ofhost when negotiated per the USB Host NegotiationProtocol. In this mode, the HVBUS, HVD , and HVDoutputs continue to be protected and FAULT continues toassert normally in response to overvoltage conditions onthese pins.HVBUS Short-to-GroundThe devices have a 0.7V (min) HVBUS short-to-groundthreshold (VSHRT). When HVBUS falls below the VSHRTthreshold, the main power switch is turned off. Duringcontinuous short-to-ground conditions, an approximately250mA autoreset current remains active to detect removalof the short circuit.www.maximintegrated.comMaxim Integrated 12

MAX20042F–MAX20044FApplications InformationPower-Supply Bypass CapacitorBypass HVBUS to GND with a 10µF and a 0.1µF ceramiccapacitor as close to the device as possible to provide 15kV (HBM) ESD protection on the pin. If the powersource has significant inductance due to long lead length,take care to prevent overshoots due to the LC tank circuitand provide protection if necessary to prevent violationof the 6V absolute maximum rating on BUS. Connecta 100µF low-ESR ceramic capacitor from BUS to GND.Connect a 0.1µF and 10µF ceramic capacitor from bothBUS and IN to GND. Place these components on thesame plane as the IC, close to the IN and GND pins.Layout of USB Data Line TracesUSB Hi-Speed requires careful PCB layout with 90Ωcontrolled-impedance matched traces of equal lengths.Use LC tuning components on the data lines as shown inthe Typical Operating Circuit. The values of these components are layout and captive-cable dependent. ContactMaxim technical support for more detailed information. 15kV ESD ProtectionAs with all Maxim devices, ESD-protection structures areincorporated on all pins to protect against electrostaticdischarges encountered during handling and assembly.The devices have extra protection against static electricity. Maxim’s engineers have developed state-of-theart structures to protect against ESD of 15kV at theHVD , HVD-, and HVBUS ports without damage. TheESD structures withstand high ESD in all states: normaloperation, shutdown, and powered down. After an ESDevent, the devices keep working without latchup, whereasother solutions can latch and must be powered down toremove latchup. ESD protection can be tested in variousways; this product is characterized for protection to thefollowing limits: 15kV using the Human Body Model 15kV using IEC 61000-4-2’s Air-Gap Dischargemethod, EN GND 8kV using the Contact Discharge method specifiedin IEC 61000-4-2, EN GNDwww.maximintegrated.comAutomotive Hi-Speed USB 2.0 ProtectorsESD Test ConditionsESD performance depends on a variety of conditions.Contact Maxim for a reliability report that documents testsetup, test methodology, and test results.Human Body ModelFigure 8 shows the Human Body Model, and Figure 9shows the current waveform it generates when dischargedinto a low impedance. This model consists of a 100pFcapacitor charged to the ESD voltage of interest, which isthen discharged into the device through a 1.5kΩ resistor.IEC 61000-4-2The IEC 61000-4-2 standard covers ESD testing andperformance of finished equipment. The MAX20042F,MAX20043F, and MAX20044F devices help users designequipment that meets Level 4 of IEC 61000-4-2. Themain difference between tests done using the HumanBody Model and IEC 61000-4-2 is higher peak currentin IEC 61000-4-2. Because series resistance is lower inthe IEC 61000-4-2 ESD test model (Figure 10), the ESDwithstand voltage measured to this standard is generallylower than that measured using the Human Body Model.Figure 11 shows the current waveform for the 8kV, IEC61000-4-2 Level 4, ESD Contact Discharge test. TheAir-Gap Discharge test involves approaching the devicewith a charged probe. The Contact Discharge methodconnects the probe to the device before the probe isenergized.Maxim Integrated 13

MAX20042F–MAX20044FAutomotive Hi-Speed USB 2.0 ProtectorsFunctional DiagramFORWARD DIRECTIONBUSHVBUSIECSCRCLAMPLV OLTAGELOCKOUTOVP NINLVESDCLAMPTHERMALSHUTDOWND HVD 044FGNDRC1MΩCHARGE-CURRENTLIMIT GERESISTANCESTORAGECAPACITORFigure 8. Human Body ESD Test Modelwww.maximintegrated.comIP 100%90%IRPEAK-TO-PEAK RINGING(NOT DRAWN TO RRENT WAVEFORMFigure 9. Human Body Current WaveformMaxim Integrated 14

MAX20042F–MAX20044FCHARGE-CURRENTLIMIT DISCHARGERESISTANCEIPEAKRC50MΩ TO 100MΩAutomotive Hi-Speed USB 2.0 ProtectorsDEVICEUNDERTESTSTORAGECAPACITOR10%30nstr 0.7ns TO 1nsFigure 10. IEC 61000-4-2 ESD Test Modelt60nsFigure 11. IEC 61000-4-2 ESD Generator Current WaveformOrdering InformationCURRENT RATING (A) (typ)OTG SUPPORTPIN-PACKAGEMAX20042FGEEA/V PART0.65No16 QSOPMAX20042FGEEB/V 0.65Yes16 QSOPMAX20043FGEEA/V 1.0No16 QSOPMAX20043FGEEB/V 1.0Yes16 QSOPMAX20044FGEEA/V 1.3No16 QSOPMAX20044FGEEB/V 1.3Yes16 QSOPNote: All devices are specified over the -40 C to 105 C operating temperature range./V denotes an automotive qualified part. Denotes a lead(Pb)-free/RoHS-compliant package.Chip InformationPROCESS: BiCMOSwww.maximintegrated.comPackage InformationFor the latest package outline information and land patterns(footprints), go to www.maximintegrated.com/packages. Notethat a “ ”, “#”, or “-” in the package code indicates RoHS statusonly. Package drawings may show a different suffix character, butthe drawing pertains to the package regardless of RoHS status.PACKAGETYPEPACKAGECODEOUTLINENO.LANDPATTERN NO.16 QSOPE16 12C21-005590-0167Maxim Integrated 15

MAX20042F–MAX20044FAutomotive Hi-Speed USB 2.0 ProtectorsRevision nitial releasePAGESCHANGED—For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licensesare implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. 2017 Maxim Integrated Products, Inc. 16

low-voltage internal USB data and USB power line in auto - motive radio, navigation, connectivity, and USB hub appli-cations. The devices support USB Hi-Speed (480Mbps), USB full-speed (12Mbps), and USB low-speed (1.5Mbps) operation, as well as USB on-the-go (OTG) functionality. The short-circuit protection features include short-to-