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MLX80004KLW-BAA-001-RE

MLX80004KLW-BAA-001-RE

  • 厂商:

    MELEXIS(迈来芯)

  • 封装:

    VFQFN-24

  • 描述:

    IC TRANSCEIVER 4CH 24QFN

  • 数据手册
  • 价格&库存
MLX80004KLW-BAA-001-RE 数据手册
MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 1. Features and Benefits                    LIN 2.x/SAE J2602 and ISO17987-4 compliant Dual/Quad - enhanced master transceiver function for each channel Backward compatible to quad-channel master transceiver MLX80001 Small footprint QFN4x4 package (wettable flanks) and minimum external component count Dual/Quad versions with same package and footprint for cost/space optimized design Slew rate selection and High Speed Flash mode Wide operating voltage range VS = 5 to 27 V Fully compatible to 3.3V and 5V devices Very low standby current consumption of (typ) 10µA in sleep mode WAKE input for local wake-up capability Remote and local wake-up source recognition Control output INH for external components Integrated termination (resistor & decoupling diode) for both LIN master & slave nodes TxD dominant time out function in slave configuration RxD dominant time out function in master configuration Sleep timer Low EME (emission) and high EMI (immunity) level High impedance LIN pin in case of loss of ground or battery Enhanced ESD robustness o +/- 10kV according to IEC 61000-4-2 for pins LIN, Vs and WAKE 2. Ordering Information Product Code MLX80002 MLX80004 Legend: Temperature Code: Package Code: Option Code: Packing Form: Ordering example: Revision 023 – July 2020 3901080004 Temperature Code K K Package Code Option Code LW LW CAA-101 BAA-101 Packing Form Code RE RE K = -40 to 125°C LW = Quad Flat Package (QFN), wettable flanks BAA-101 = Design Revision RE = Reel MLX80004 KLW-BAA-101-RE Page 1 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 3. General Description The MLX80004(2) is a quad/dual LIN transceiver physical layer device for a single wire data link capable of operating in applications using baud rates up to 20kBd. It is compliant to LIN2.x as well as to the SAE J2602 specifications. The IC furthermore can be used in ISO9141 systems. The MLX80004 is functionally compatible to the MLX80001 quad master LIN transceiver. The device is flexible for use in LIN – master applications and slave applications as well. Due to the integrated master termination and the high ESD/EMC robustness of the device a minimum space and number of external components is required. The number of LIN – channels can be easily adapted on the application requirements by combinations of quad and dual channel devices within the same foot print. Because of the very low power consumption of the MLX80004 while being in sleep mode it’s suitable for ECU applications with hard standby current requirements. The implemented high resistive LIN - termination in sleep mode as well as the RxD dominant time-out feature allows a comfortable handling of LIN short circuits to GND. In order to reduce the power consumption in case of failure modes, the integrated sleep timer takes care for switching the IC into the most power saving sleep mode after Power-On or Wake-Up events are not followed by a mode change response of the microcontroller. The MLX80004/2 has an improved EMI performance and ESD robustness according to the OEM Common Hardware Requirements for LIN in Automotive Applications Rev.1.2. By using the MODE0/1 pins the application can be easily adapted on the required baud rate in order to optimize the EMC emissions. A high speed Flash Mode with disabled slew rate control is available as well. To fulfill different OEM requirements, the integrated master termination can be disabled and external master resistors and decoupling diodes can be used. In this mode the MLX80004/2 can be used in slave applications as well. Revision 023 – July 2020 3901080004 Page 2 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 4. Table of Contents 1. Features and Benefits .......................................................................................................................................................... 1 2. Ordering Information ........................................................................................................................................................... 1 3. General Description ............................................................................................................................................................. 2 4. Table of Contents ................................................................................................................................................................. 3 5. Block Diagram ...................................................................................................................................................................... 5 6. Pin Description ..................................................................................................................................................................... 6 7. Electrical Specification ......................................................................................................................................................... 7 7.1. Operating Conditions .......................................................................................................................................................................7 7.2. Absolute Maximum Ratings .............................................................................................................................................................8 7.3. Static Characteristics ........................................................................................................................................................................9 7.4. Dynamic Characteristics .................................................................................................................................................................12 7.4.1. Duty Cycle Calculation ....................................................................................................................................................... 13 8. Functional Description ....................................................................................................................................................... 15 8.1. Operating Modes ...........................................................................................................................................................................16 8.2. Initialization and Standby mode ....................................................................................................................................................16 8.3. Active Modes..................................................................................................................................................................................16 8.3.1. High Speed mode .............................................................................................................................................................. 17 8.3.2. Low speed mode ............................................................................................................................................................... 17 8.3.3. Normal speed mode .......................................................................................................................................................... 17 8.4. Sleep Mode ....................................................................................................................................................................................17 8.5. Wake Up .........................................................................................................................................................................................18 8.6. Wake Up Source Recognition.........................................................................................................................................................18 8.7. Master / Slave configuration ..........................................................................................................................................................21 9. Fail-safe Features ............................................................................................................................................................... 22 9.1. Loss of battery ................................................................................................................................................................................22 9.2. Loss of Ground ...............................................................................................................................................................................22 9.3. Short circuit to battery ...................................................................................................................................................................22 9.4. Ground shift and short circuit to ground .......................................................................................................................................22 9.5. Thermal overload ...........................................................................................................................................................................22 9.6. Undervoltage lock out ....................................................................................................................................................................22 9.7. Open Circuit protection .................................................................................................................................................................22 9.8. TxDx faulty start protection ...........................................................................................................................................................23 9.9. RxDx dominant time-out ................................................................................................................................................................23 9.10. TxDx dominant time-out ..............................................................................................................................................................23 10. Application Example ........................................................................................................................................................ 24 10.1. Enhanced Master Mode...............................................................................................................................................................24 10.2. Standard Transceiver Mode .........................................................................................................................................................25 Revision 023 – July 2020 3901080004 Page 3 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 10.3. Application Circuitry for EMC.......................................................................................................................................................26 10.3.1. External Circuitry on Supply Lines ................................................................................................................................... 27 10.3.2. External Circuitry on LIN Lines ......................................................................................................................................... 27 10.3.3. External Circuitry on Signal Lines .................................................................................................................................... 27 11. Package Mechanical Specification ................................................................................................................................... 28 12. Package Marking Information .......................................................................................................................................... 29 13. Tape and Reel Specification ............................................................................................................................................. 30 14. ESD and EMC.................................................................................................................................................................... 33 14.1. Automotive Qualification Test Pulses ..........................................................................................................................................33 14.2. Test Pulses On supply Lines .........................................................................................................................................................33 14.3. Test pulses on Pin LIN ..................................................................................................................................................................34 14.4. Test pulses on signal lines ............................................................................................................................................................34 14.5. Test circuitry for automotive transients ......................................................................................................................................35 14.6. EMC Test pulse definition ............................................................................................................................................................36 15. Standard information regarding manufacturability of Melexis products with different soldering processes ................. 38 16. Disclaimer ........................................................................................................................................................................ 39 Revision 023 – July 2020 3901080004 Page 4 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 5. Block Diagram MLX80004 MLX80002 VS INH 3.3V Supply Vs Temp. Protection Vs monitor/ POR Mode Control MODE0 RCO Sleep timer Wake-up Control P3 P2 fuse fuse fuse P0 P1 WAKE fuse RxDx time out TxDx time out MODE1 Bias Calibration & Control Slew rate DIS_MAS Master Pull up 50uA Vs WakeFilter RxD1 Rec-Filter 30K 1K Receiver LIN1 Filter TxD1 TxTo TSD Driver control Local WU Vs WakeFilter RxD2 Rec-Filter 30K 1K Receiver LIN2 TxD2 Filter TxTo TSD RxD3 Driver control channel3 LIN3 channel4 LIN4 TxD3 RxD4 TxD4 Revision 023 – July 2020 3901080004 Page 5 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet Figure 1: Block Diagram MLX80004/2. 6. Pin Description Figure 2: Pinout MLX80004 QFN4x4 24L Figure 3: Pinout MLX80002 QFN4x4 24L Table 1: Pin List Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 EPad MLX80004 MLX80002 RxD1 TxD1 MODE0 MODE1 TxD4 N.C. RxD4 N.C. DIS_MAS N.C. LIN4 N.C. GNDL LIN3 N.C. WAKE RxD3 N.C. TxD3 N.C. GND TxD2 RxD2 N.C. INH VS LIN2 GNDL LIN1 N.C. GND / GNDL I/O-Type O I I I I O I Description Receive Data LIN Ch1, open drain Transmit Data LIN Ch1 (+ local WU-Flag) Operating Mode Selection Input 1 Operating Mode Selection Input 2 Transmit Data LIN Ch4 Receive Data LIN Ch4, open drain disable integrated master resistor I/O G I/O I O I G I O LIN Bus Ch4 Ground LIN LIN Bus Ch3 local wake up input, low active Receive Data LIN Ch3, open drain Transmit Data LIN Ch3 Ground Transmit Data LIN Ch2 Receive Data LIN Ch2, open drain O P I/O G I/O HV High Side Control Pin Battery Voltage LIN Bus Ch2 Ground LIN LIN Bus Ch1 G Exposed Pad of Package (grounded heatsink) 1 1 For enhanced thermal and electrical performance, the exposed pad of the QFN package should be soldered to the board ground plane (and not to any other voltage level). Revision 023 – July 2020 3901080004 Page 6 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 7. Electrical Specification All voltages are referenced to ground (GND). Positive currents flow into the IC. The absolute maximum ratings (in accordance with IEC 60 134) given in the table below are limiting values that do not lead to a permanent damage of the device but exceeding any of these limits may do so. Long term exposure to limiting values may affect the reliability of the device. 7.1. Operating Conditions Table 2: Operating Conditions [1] [2] Nr. Parameter 101 Battery supply voltage 102 Extended battery supply voltage 103 Operating ambient temperature 104 Voltage on low voltage I/Os (RxDx, TxDx, MODEx [1] [2] Symbol Min Max Unit VS 5 27 V Vs_NON_OP 5 40 V Tamb -40 +125 °C RxDx, TxDx, MODEx -0.3 5.5 V Remark Parameter deviations allowed Vs is the IC supply voltage including voltage drop of reverse battery protection diode, VDROP = 0.4 to 1V, Operating voltage range of the LIN2.x/SAE J2602 plug & play specification is 7V…18V Revision 023 – July 2020 3901080004 Page 7 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 7.2. Absolute Maximum Ratings Table 3: Absolute Maximum Ratings Nr. Parameter Symbol Condition Min Max Unit 201 Battery Supply Voltage VS Respective to GND -0.3 40 V 202 Transients at battery supply voltage VVS.tr1 ISO 7637/2 pulse 1[1] -100 203 Transients at battery supply voltage VVS.tr2 ISO 7637/2 pulse 2[1] 204 Transients at high voltage signal pins VLIN..tr1 ISO 7637/3 pulses 1[2] 205 Transients at high voltage signal pins VLIN..tr2 ISO 7637/3 pulses 2[2] 206 Transients at high voltage signal and power supply pins VHV..tr3 ISO 7637/2 pulses 3A, 3B [3] 207 DC voltage LINx VLIN_DC 208 DC voltage WAKE VWAKE_DC 209 DC voltage INH, DIS_MAS VINH_DC VDISMAS_DC Respective to GND and VS Loss of Ground( VGND=VS ) Respective to GND and VS Loss of Ground( VGND=VS ) 210 DC voltage low voltage I/O’s (RxDx,TxDx,MODEx) Vlv_DC 211 ESD voltage, IEC 61000-4-2 [4] VESD 212 ESD voltage, HBM (CDF-AEC-Q100-002) VESD 213 ESD voltage, CDM (CDF-AEC-Q100-011) 214 V 75 V -30 V 30 V -150 100 V -20 -30 -20 -30 40 40 40 40 -0.3 VS + 0.3 V -0.3 7 V Pin LIN, VS, WAKE -10 10 kV Pin LIN, VS, WAKE, INH vs GND -8 8 kV All other pins -3 3 kV VESD -1000 1000 V Maximum latch - up free current at any Pin ILATCH -500 500 mA 215 Thermal impedance ΘJA 50 K/W 216 Storage temperature Tstg -55 150 °C 217 Junction temperature Tvj -40 150 °C [1] [2] [3] [4] JEDEC 1s2p board V V ISO 7637/2 test pulses are applied to VS via a reverse polarity diode and >10uF blocking capacitor. ISO 7637/3 test pulses are applied to LIN via a coupling capacitance of 100nF. ISO 7637/3 test pulses are applied to LIN via a coupling capacitance of 1nF. ISO 7637/2 test pulses are applied to VS via a reverse polarity diode and >10uF blocking capacitor IEC 61000-4-2 validated by external Lab during product qualification (see application examples) Revision 023 – July 2020 3901080004 Page 8 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 7.3. Static Characteristics Table 4: Static Characteristics Unless otherwise specified all values in the following tables are valid for VS = 5 to 27V and Tj= -40 to 150°C. All voltages are referenced to ground (GND), positive currents flow into the IC. Nr. Parameter Symbol Condition Min 301 Undervoltage lockout VS_UV 2.4 302 Undervoltage lockout hysteresis[1] VS_UV_hys 0.1 Typ Max Unit 4.8 V 0.3 0.7 V 9 15 µA 20 µA 200 400 µA 12 15 7 9 100 125 50 65 3 5 mA 30 40 pF 40 100 200 mA PIN VS 303 Supply current, sleep mode ISsl 304 Supply current standby mode ISBY 305 Supply current active mode, dominant Standard transceiver mode ISd_slave 306 Supply current active mode, dominant Enhanced master mode ISd_master 307 Supply current active mode, recessive ISr VM0DEx = 0V, Tj ≤ 85C VWAKE = VLINx = VS ≤14V VM0Dex = 0V, Tj ≤ 125C VWAKE = VLINx = VS ≤ 18V VM0Dex = 0V, after POR or WU VM0Dex = 5V,VTxD1-4 = 0V DIS_MAS = Vs (80004) VM0Dex = 5V,VTxD1-2 = 0V DIS_MAS = Vs (80002) VM0Dex = 5V,VTxD1-4 = 0V DIS_MAS = 0V (80004) VM0Dex = 5V,VTxD1-2 = 0V DIS_MAS = 0V (80002) 100 VM0Dex = 5V,VTxD1-4 = 5V mA mA PIN LINx – Transmitter 310 Transmitter internal capacitance[1] CLIN 311 Short circuit bus current IBUS_LIM 312 313 Pull up resistance bus, normal & standby mode Pull up resistance bus, normal & standby mode RSLAVE VDIS_MAS = VS 20 30 60 kΏ RMaster VDIS_MAS = 0V 900 1000 1100 Ώ VLINx = 0V, VS = 12V, VM0Dex = 0V,VTxDx = 5V -100 -60 -20 µA 1 V 314 Pull up current bus, sleep mode ISLAVE_SLEEP 315 Voltage drop at int. diode in pull up path RSLAVE [1] VSerDiode 316 Receiver dominant input leakage current including pull up resistor IBUS_PAS_dom 317 Receiver recessive input leakage current IBUS_PAS_rec 318 Bus reverse current loss of battery [2] IBUS_NO_BAT 319 Bus current during loss of ground [2] IBUS_NO_GND 320 Transmitter dominant voltage [2] VolBUS 321 Transmitter recessive voltage [2] VohBUS Revision 023 – July 2020 3901080004 Capacitance on pins LINx to GND VLIN = VS, VM0Dex = 5V,VTxDx = 0V 0.4 VLINx =0V, VS =12V, VM0Dex = 5V,VTxDx = 5V, VDIS_MAS = VS VLINx=18V, VS =5V, VM0Dex = 5V,VTxDx = 5V, Tamb sleep mode transitions master > slave transitions Min Typ 0.396 0.581 0.417 0.590 15.9 µs 17.28 µs 30 150 µs 10 50 µs 150 500 ms 27 60 ms 27 60 ms 1 2 5 µs 1 2 5 µs This parameter is tested by applying a square wave signal to the LIN. The minimum slew rate for the LIN rising and falling edges is 50V/us See Figure 4– LIN timing diagram Standard loads for duty cycle measurements are 1KΩ/1nF, 660Ω/6.8nF, 500Ω/10nF, internal master termination disabled in accordance to SAE J2602, see Figure 5 for supply voltage ranges Vs=5…7V and Vs=18…27V parametric deviations are possible Revision 023 – July 2020 3901080004 Page 12 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 7.4.1. Duty Cycle Calculation Figure 4: LIN timing diagram (reference LIN2.1 specification) Figure 4: LIN timing diagram, relation between propagation delay and duty cycle (reference SAE J2602 specification) Revision 023 – July 2020 3901080004 Page 13 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet As shown in Figure 4, both worst case duty cycles can be calculated as follows : Dwc1 = tBUS_rec(min) / (2 tBit ) Dwc2 = tBUS_rec(max) / (2 tBit ) Thresholds for duty cycle calculation for the plug & play specification in accordance to LIN2.0 / SAE J2602: Baud rate 20kBd 10.4kBd TBIT 50µs 96µs Dwc1 D1 D3 Dwc2 D2 D4 THREC(MAX) 0.744 × VS_TX 0.778 × VS_TX THDOM(MAX) 0.581 × VS_TX 0.616 × VS_TX THREC(MIN) 0.422 × VS_TX 0.389 × VS_TX THDOM(MIN) 0.284 × VS_TX 0.251 × VS_TX Table 6: Data Transmission Rates Revision 023 – July 2020 3901080004 Page 14 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 8. Functional Description The MLX80004/2 is the physical layer interface between the master/slave microcontroller and the single wire LIN bus network. Figure 5: State Diagram of the MLX80004/2 Revision 023 – July 2020 3901080004 Page 15 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 8.1. Operating Modes Table 7: Operating Modes Mode MODE0 MODE1 Standby 0 0 Active 1 1 0 Sleep 0 [1] [2] [3] [4] [5] TxDx weak pulldown/ active low RxDx active low INH [2] [1] floating/ Vs 1 0 1 weak pulldown/ input for transmit data stream output for LIN data stream Vs 0 weak pull down floating floating LIN transceiver Off On [3] [4] [5] Off Indicates the wake up flag in case of local wake up After power on RxDx is floating. If any wake up(local or remote) occurs it will be indicated by active low Active low interrupt at pin RxD will be removed when entering normal mode Wake up source flag at pin TxD1 will be removed when entering normal mode Active modes will be entered by a low -> high transition on pin MODEx. When recessive level (high) on pin TxDx is present the transmit path will be enabled 8.2. Initialization and Standby mode When the battery supply voltage Vs exceeds the specified threshold VS_UV, the MLX80004/2 automatically enters an intermediate standby mode. The INH output becomes HIGH (Vs) and can be used for a battery driven interrupt or to switch on an external ECU – voltage regulator. The pins RxDx are floating and the integrated master (slave) pull up resistor with decoupling diode pulls the pin LIN. The transmitter and the receiver are disabled. If no mode change occurs to any active mode via a MODE0/1 LOW to HIGH transition within the time stated (typically 350ms), the IC enters the most power saving sleep mode and the INH output will become floating (logic 0). Furthermore the standby mode will be entered after a valid local or remote wake up event, when the MLX80004/2 is in sleep mode. The entering of the standby mode after wake up will be indicated by an active LOW interrupt on pin RxDx. The MLX80004/2 enters the standby mode as well in case of a battery under-voltage condition. That happens while being in sleep mode or any active mode. 8.3. Active Modes By entering the active modes the MLX80004/2 can be used as interface between the single wire LIN bus and the microcontroller. The incoming bus traffic is detected by the receiver and transferred via the RxDx output pin to the microcontroller. (see Figure 4, LIN timing diagram) The active modes can be entered being in sleep or standby mode, when the pin(s) MODE0/1 are driven HIGH. Revision 023 – July 2020 3901080004 Page 16 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet MODE0 MODE1 Mode L L Sleep Mode H L High Speed Mode (slew rate control disabled) L H Low speed mode H H Normal Mode Table 8: Mode Selection Table 8.3.1. High Speed mode This mode allows high speed data download up to 100Kbit/s. The slew rate control is disabled. The falling edge is the active driven edge, the speed of the rising edge is determined by the network time constant. 8.3.2. Low speed mode This mode is the recommended operating mode for J2602 applications with a maximum baud rate of 10.4kBd. The slew rate control of any channel is optimized for minimum radiated noise, especially in the AM band. 8.3.3. Normal speed mode Transmission bit rate in normal mode is up to 20kbps. The slew rate control of any channel is optimized for maximum allowed bit rate in the LIN specification package 2.x. 8.4. Sleep Mode The most power saving mode of the MLX80004/2 is the sleep mode. The mode change into sleep mode is possible regardless of the voltage levels on the LINx bus, pins WAKE or TxDx. The MLX80004/2 offers two procedures to enter the sleep mode: • The sleep mode will be entered if both the pins MODE0 and MODE1 are being driven LOW for longer than the specified filter time (tMODE_deb) when in active modes. • If the MLX80004/2 is in standby mode after power-on or wake-up, a sleep counter is started and switches the transceiver into sleep mode after the specified time (typ. 350ms) if the microcontroller of the ECU will not confirm the active operation by setting MODE0/1 pins to logic HIGH. This feature allows faulty blocked LIN nodes to reach the most power saving sleep mode anyway. Being in sleep mode the INH pin becomes floating and can be used to switch off the ECU voltage regulator in order to minimize the current consumption of the complete LIN node (preferred feature in slave applications). The transmitters are disabled and the pins RxDx are disconnected from the receive path and become floating. The master(slave) termination resistor (LIN pull up resistor with decoupling diode between pins LIN and Vs) is disconnected, only a weak LIN pull up current of typically 50uA is applied to the LINx bus (see chapter 9 Fail-safe Features) Revision 023 – July 2020 3901080004 Page 17 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 8.5. Wake Up When in sleep mode the MLX80004/2 offers three wake-up procedures: • • • In applications with continuously powered ECU a wake up via mode transition to active modes is possible by setting the MODEx pins to high level. (see chapter 4.3 Active Modes) Remote wake-up via LINx bus request After a falling edge on the LINx bus followed by a dominant voltage level for longer than the specified value(twu_remote) and a rising edge on pin LINx will cause a remote wake up (see Figure 6 at page 19) Local wake-up via a negative edge on pin WAKE A negative edge on the pin WAKE and a dominant voltage level for longer than the specified time (twu_local) will cause a local wake-up. The current for an external switch has to be provided by an external pull up resistor RWK. For a reverse current limitation in case of a closed external switch and a negative ground shift or an ECU loss of ground a protection resistor RWK_prot between pin WAKE and the switch is recommended. (see Figure 7 at page 20) The pin WAKE provides a weak pull up current towards the battery voltage that provides a HIGH level on the pin in case of open circuit failures or if no local wake up feature is required. In such applications it is recommended to connect the pin WAKE to pin Vs via a resistor of 10k ohms. 8.6. Wake Up Source Recognition The device can distinguish between a local wake-up event (pin WAKE) and a remote wake-up event in dependence of the requesting LINx bus. Local Wake Up In case of a local wakeup via WAKE pin, the wake up request is indicated by an active LOW on pin RxD1. The wake-up source flag is set and is indicated by an active LOW on pin TxD1. The wake-up source flag can be read if an external pull up resistor at TxD1 towards the microcontroller supply voltage has been added and the MLX80004/2 is still in standby mode: When the microcontroller confirms an active mode operation by setting the pin MODE0/1 to HIGH, both the wake-up request on pin RxD1 as well as the wake-up source flag on pin TxD1 are reset immediately. Remote Wake Up In case of a remote wake-up via a LINx bus, the source of the wake-up request will be indicated by the RxDx pin that belongs to the LINx pin. (example: LOW level on RxD4 and floating RxD1-3 indicate a wake-up request on LIN4). The wake up source flag at TxD1 remains floating. This allows following the wake-up request of the requesting LIN bus while remaining the other LIN bus channels in recessive mode (no wake up occurs in these LIN networks). After a mode transition into any active mode by setting the pin MODE0/1 to HIGH, the active LOW wake-up request on pin RxDx is reset immediately. If the device is not set into an active mode after a wake up request (either local or remote) then it will return into sleep mode after tdsleep. Revision 023 – July 2020 3901080004 Page 18 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet Figure 6: remote wake up and wake-up source recognition Revision 023 – July 2020 3901080004 Page 19 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet Figure 7: local wake up and wake-up source recognition Revision 023 – July 2020 3901080004 Page 20 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 8.7. Master / Slave configuration The target applications of the MLX80004/2 are BCM master modules with multiple LIN channels. In order to be able to use the same module for a wide variety of applications with different stages of extension, a space efficient and cost effective adaptation on the number of LIN channels is desired. The MLX80004/2 device family offers the combination of quad and dual channel LIN transceiver within the same advanced package and a compatible foot print. By the integration of the LIN master-termination (decoupling diode and 1K resistor) the external circuitry can be minimized in terms of space as well as BOM (bill of material). The RxD time-out feature allows the handling of a LIN short to ground failure without software support by the microcontroller. This application mode is called enhanced master mode, compatible to the functionality of the quad – LIN transceiver MLX80001. In case of different BCM requirements it may happen that the external master termination is desired only. To cover these applications the pin DIS_MAS has been introduced: DIS_MAS Mode GND Enhanced Master Mode LIN termination Supported fail safe features Active mode : Diode & 1kΩ sleep mode :Diode & 60µA • RxDx time-out, independent disconnect of master termination in case of LINx short to ground • TxDx time-out, independent disable of faulty dominant blocked transmit path Vs Standard Transceiver Mode Active mode : Diode & 30kΩ sleep mode :Diode & 60µA • TxDx time-out, independent disable of faulty dominant blocked transmit path Table 9: Time Out Modes In case of externally mounted master termination (standard transceiver mode), the handling of a LIN short to ground is not possible. By using the standard transceiver mode, the MLX80004/2 can be used in slave applications as well. To pull the pin DIS_MAS to high even in case the external ECU regulator is switched off in sleep mode. The pin shall be connected to Vs via an external resistor. (see Figure 8 at page 24, application example) In the standard transceiver mode, only the TxDx time-out feature is enabled. Revision 023 – July 2020 3901080004 Page 21 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 9. Fail-safe Features 9.1. Loss of battery If the ECU is disconnected from the battery, the bus pin is in high impedance state. There is no impact to the bus traffic and to the ECU itself. Reverse current is limited to < 20µA 9.2. Loss of Ground In case of an interrupted ECU ground connection there is no influence to the bus lines. The current from the ECU to the LINx pins is limited by the weak pull up current of the pin LINx, the integrated master termination (DIS_MAS = GND) as well as the integrated slave termination (DIS_MAS = Vs) is disconnected in order to fulfill the SAE J2602 requirements for the loss of ground current ( recessive transition on the LIN bus if the failure disappears. The RxDx time-out is only active in the Enhanced Master Mode, while the master termination is enabled. 9.10. TxDx dominant time-out In case of a faulty blocked permanent dominant level on pin TxDx the transmit path will be disabled after the specified time tTxDx_to (typ. 40ms). The data transmission is released again as soon as the failure disappears by the next rising edge of TxDx. The TxDx time-out is active in both, the Standard Transceiver and Enhanced Master Mode. Revision 023 – July 2020 3901080004 Page 23 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 10. Application Example 10.1. Enhanced Master Mode Car Battery Cl30 1N4001 LINx network 22uF VBAT_ECU Master ECU Voltage regulator VBAT +5V 100nF 4,7K 10K VS INH WAKE µP LIN1 LIN2 TxD3 TxD4 LIN3 LIN4 RxD1 RxD2 RxD3 RxD4 1nF MODE0 Control LIN ECU connector MLX80004 TxD1 TxD2 MODE1 DIS_MAS 1N4001 22uF VBAT_ECU Slave ECU Voltage regulator VBAT INH +5V 100nF 4,7K 10k INH 10K VS DIS_MAS WAKE LIN1 LIN2 µP MLX80002 RxD1 RxD2 Control LIN MODE0 MODE1 180p ECU connector TxD1 TxD2 Figure 8: Application example using enhanced master mode with minimized external components and LIN short to GND feature. Note: All pins of MLX80004/MLX80002 with „N.C.“ are internally not connected. Revision 023 – July 2020 3901080004 Page 24 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 10.2. Standard Transceiver Mode Car Battery Cl30 1N4001 LINx network 22uF VBAT_ECU Master ECU Voltage regulator VBAT +5V 100nF 4,7K 10k 10K VS DIS_MAS WAKE µP TxD1 TxD2 LIN1 LIN2 TxD3 TxD4 LIN3 LIN4 1K RxD1 RxD2 RxD3 RxD4 1nF MODE0 Control LIN ECU connector INH MODE1 MLX80004 1N4001 22uF VBAT_ECU Slave ECU Voltage regulator VBAT INH +5V 100nF 4,7K 10K INH VS WAKE TxD LIN MLX80020 180p RxD Control LIN EN ECU connector µP Figure 9: Application example using standard transceiver mode without LIN short to GND feature. Note: All pins of MLX80004/MLX80002 with „N.C.“ are internally not connected. Revision 023 – July 2020 3901080004 Page 25 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 10.3. Application Circuitry for EMC In order to minimize EMC influences, the external application circuitry shall be designed as followed: D12) VS C22) + Connector C11) C32) VS R12) R22) LINx LIN C42) MLX80004 WAKE Signal -line C51) D21) GNDx GND 1) 2) optional implemented mandatory implemented Figure 10: Typical Application Circuitry for EMC Revision 023 – July 2020 3901080004 Page 26 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 10.3.1. External Circuitry on Supply Lines In order to minimize EMC influences, the external application circuitry shall be designed as followed: Name Mounting Min Recommended - Max 100 - Dim Comment nF Ceramic SMD: 10%, 0805, ≥50V; close to the connector C1 recommended D1 mandatory C2 mandatory 1 22 100 μF Tantal SMD: 10%, 7343, 35V C3 mandatory - 100 - nF Ceramic SMD: 10%, 0805, ≥50V; close to the pin Inverse-polarity protection diode Table 10: External Components on Supply Lines 10.3.2. External Circuitry on LIN Lines In order to minimize EMC influences, the external application circuitry shall be designed as followed: Name Mounting Min Recommended Max D2 no - PESD1LIN - C4 mandatory - 220/1000 - Dim pF Comment ESD protection Diode: SOD323 close to the connector; Ceramic SMD: 10%, 0805, ≥50V; CSlave≤ CD2+C4+CIC CSlave≤250pF/ CMaster≤1nF Table 11: External Components on LIN Lines 10.3.3. External Circuitry on Signal Lines In order to minimize EMC influences, the external application circuitry shall be designed as followed: Name Mounting Min Recommended Max Dim Comment C5 no 0.1 1 100 nF Ceramic SMD: 10%, 0805, ≥50V; R2 mandatory 5k 10k 100k Ω Serial resistor: 0805 Table 12: External Components on Signal Lines Revision 023 – July 2020 3901080004 Page 27 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 11. Package Mechanical Specification The devices are assembled in a QFN4x4 24L package with wettable flanks. Figure 11: Package outline drawing and dimensions Package QFN4x4 Θja [°C/W] (JEDEC 1s0p board) Θjc [°C/W] 16 154 Θja [°C/W] (JEDEC 1s2p board) 50 Table 13: Thermal resistance values of package Revision 023 – July 2020 3901080004 Page 28 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 12. Package Marking Information 5-digit Type Number 18 17 19 16 15 14 13 80004 A 2345D 1025 20 21 22 23 24 1 2 3 4 5 Design revision 12 11 5-digit Lot Number 10 9 8 7 4-digit Date Code Format: YYWW 6 Figure 12: Package marking, example for MLX80004 in QFN4x4 24L Revision 023 – July 2020 3901080004 Page 29 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 13. Tape and Reel Specification Note: that the above mentioned labels are just examples which represent the label layout! Revision 023 – July 2020 3901080004 Page 30 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet Revision 023 – July 2020 3901080004 Page 31 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet Revision 023 – July 2020 3901080004 Page 32 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 14. ESD and EMC In order to minimize EMC influences, the PCB has to be designed according to EMC guidelines. The products MLX80004/2 are ESD sensitive devices and have to be handled according to the rules in IEC61340-5-2. The products MLX80004/2 are evaluated according AEC-Q100-002 (HBM) and AEC-Q100-011 (CDM). The extended ESD/EMC tests (acc. to IEC 61000-4-2, LIN Conf. Test Specification Package for LIN2.1, OEM hardware requirements for LIN, CAN and FlexRay Interfaces in automotive applications – Audi, BMW, Daimler, Porsche, Volkswagen - Rev. 1.3/2012) have been tested by external certificated test houses. The test reports are available on request. 14.1. Automotive Qualification Test Pulses Automotive test pulses are applied on the module in the application environment and not on the naked IC. Therefore attention must be taken, that only protected pins (protection by means of the IC itself or by means of external components) are wired to a module connector. In the recommended application diagrams, the reverse polarity diode together with the capacitors on supply pins, the protection resistors in several lines and the load dump protected IC itself will protect the module against the below listed automotive test pulses. The exact value of the capacitors for the application has to be figured out during design-in of the product according to the automotive requirements. For the LIN pin the specification “LIN Physical Layer Spec 2.1 (Nov. 24, 2006)” is valid. Supply Pin VS is protected via the reverse polarity diode and the supply capacitors. No damage will occur for defined test pulses. A deviation of characteristics is allowed during pulse 1 and 2; but the module will recover to the normal function after the pulse without any additional action. During test pulse 3a, 3b, 5 the module will work within characteristic limits. 14.2. Test Pulses On supply Lines Parameter Symbol Min Max Dim Coupling test condition, functional status Transient test pulses in accordance to ISO7637-2 (supply lines) & , VS=13.5V, TA=(23 ± 5)°C & (Document: “Hardware Requirements for LIN, CAN and FlexRay Interfaces in Automotive Applications”; Audi, BMW, Daimler, Porsche, VW; 2009-12-02) 5000 pulses, Test pulse #1 vpulse1 -100 V Direct functional state C 5000 pulses, Test pulse #2 vpulse2 75 V Direct functional state A Test pulse #3a vpulse3a Test pulse #3b vpulse3b -150 100 V Direct 1h,functional state A V Direct 1h,functional state A Load dump test pulse in accordance to ISO7637-2 (supply lines), VS=13.0V, TA=(23 ± 5)°C Test pulse #5b vpulse5b 65 (+13V (VS)) 87 (+13V (VS)) V Direct 1 pulse clamped to 27V (+13V (VS)), (32V (+13V (VS))for applications for north America), functional state C Table 14: Test pulses Supply Line Revision 023 – July 2020 3901080004 Page 33 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 14.3. Test pulses on Pin LIN Parameter Symbol Min Max Dim Coupling test condition, functional status Transient test pulses in accordance to ISO7637-3, VS=13.5V, TA=(23 ± 5)°C & (Document: “Hardware Requirements for LIN, CAN and FlexRay Interfaces in Automotive Applications”; Audi, BMW, Daimler, Porsche, VW; 2009-12-02) 1000 Direct capacitive pulses, Vpulse_ Test pulse ‘DCC slow –‘ -100 V coupled: slow+ functional 1nF state D 1000 Direct capacitive pulses, Vpulse_ Test pulse ‘DCC slow +‘ 75 V coupled: slowfunctional 1nF state D Direct capacitive 10 min, Vpulse_ Test pulse ‘DCC fast a’ -150 V coupled: functional fast_a 100pF state D Direct capacitive 10 min, Vpulse_ Test pulse ‘DCC fast b’ 100 V coupled: functional fast_b 100pF state D Table 15: Test pulses LIN 14.4. Test pulses on signal lines Parameter Symbol Mi n Max Dim Coupling test condition, functional status Transient test pulses in accordance to ISO7637-3 (signal lines). VS=13.5V, TA=(23 ± 5)°C Test pulse ‘DCC slow –‘ Test pulse ‘DCC slow +‘ Test pulse ‘DCC fast a’ Test pulse ‘DCC fast b’ Vpulse_ slow+ Vpulse_ slowVpulse_ fast_a Vpulse_ fast_b -30 -8 V +8 +30 V -60 -10 V 10 40 V Direct capacitive coupled:100nF Direct capacitive coupled:100nF Direct capacitive coupled:100pF Direct capacitive coupled:100pF 1000 pulses, functional state C 1000 pulses, functional state A 10 min, functional state A 10 min, functional state A Table 16: Test pulses signal lines Description of functional state A: All functions of the module are performed as designed during and after the disturbance. B: All functions of the module are performed as designed during the disturbance: One or more functions can violate the specified tolerances. All functions return automatically to within their normal limits after the disturbance is removed. Memory functions shall remain class A. C: A function of the module does not perform as designed during the disturbance but returns automatically to the normal operation after the disturbance is removed. D: A function of the module does not perform as designed during the disturbance and does not return automatically to the normal operation after the disturbances is removed. The device needs to be reset by a simple operation/action to return to the specified limits/function. Revision 023 – July 2020 3901080004 Page 34 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 14.5. Test circuitry for automotive transients Figure 13: Test circuit for automotive transients Figure 13 shows the general requirement on the test circuitry for applying automotive transient test pulses. In order to represent the most critical network impedance, the LINx pins has to be connected via 1kOhm / decoupling diode to the Schaffner test generator. Including the integrated master termination of 1kOhm, the minimum network resistance of 500Ohm can be simulated by adding an external 1Kohm resistor. In slave application mode (DIS_MAS = Vs), the external coupling has to be applied via 500Ohm resistor. Revision 023 – July 2020 3901080004 Page 35 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 14.6. EMC Test pulse definition EMC Test Pulse shapes (ISO7637-2 (supply lines)) Test Pulse 1 Ri = 10 Ohm Test pulse 2 Ri = 2 Ohm 200 ms V 0.5...5s < 100 µs 50 µs V 12 V 0V 10% t 1 µs 90% vpulse1 vpulse2 90% 10% 12V 1 µs 2 ms 0V t 200 ms 0.5...5s Test Pulse 3a Ri = 50 Ohm Test Pulse 3b Ri = 50 Ohm 100 ns 5 ns V 90% V 12V vpulse3b 10% 0V t vpulse3a vpulse3b vpulse3a 10% 12V 0V 100 µs 10 ms 90 ms 100 µs 90% t 10 ms 90 ms 5 ns 100 ns Test Pulse 5 (Load Dump) Ri = 0.5…4 Ohm (clamped to 45V during test) V Pulse 5 90% Pulse 5 at device vpulse5 40V 10% 12V t tr = 0.1...10ms td = 40...400ms Table 17: Test pulses shapes ISO7637-2 EMC Test Pulse shapes (ISO7637-3 (non-supply lines)) Test Pulse ‘DCC slow –’ Ri = 2 Ohm Test Pulse ‘Fast a, DCC’ Ri = 50 Ohm Test pulse ‘DCC slow +’ Ri = 2 Ohm Test Pulse ‘Fast b, DCC’ Ri = 50 Ohm Table 18: Test pulses shapes ISO7637-3 Revision 023 – July 2020 3901080004 Page 36 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet Revision 023 – July 2020 3901080004 Page 37 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 15. Standard information regarding manufacturability of Melexis products with different soldering processes Our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level according to following test methods: Reflow Soldering SMD’s (Surface Mount Devices) • • IPC/JEDEC J-STD-020 Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices (classification reflow profiles according to table 5-2) EIA/JEDEC JESD22-A113 Preconditioning of Nonhermetic Surface Mount Devices Prior to Reliability Testing (reflow profiles according to table 2) Wave Soldering SMD’s (Surface Mount Devices) and THD’s (Through Hole Devices) • • EN60749-20 Resistance of plastic- encapsulated SMD’s to combined effect of moisture and soldering heat EIA/JEDEC JESD22-B106 and EN60749-15 Resistance to soldering temperature for through-hole mounted devices Iron Soldering THD’s (Through Hole Devices) • EN60749-15 Resistance to soldering temperature for through-hole mounted devices Solderability SMD’s (Surface Mount Devices) and THD’s (Through Hole Devices) • EIA/JEDEC JESD22-B102 and EN60749-21 Solderability For all soldering technologies deviating from above mentioned standard conditions (regarding peak temperature, temperature gradient, temperature profile etc) additional classification and qualification tests have to be agreed upon with Melexis. The application of Wave Soldering for SMD’s is allowed only after consulting Melexis regarding assurance of adhesive strength between device and board. Melexis recommends reviewing on our web site the General Guidelines soldering recommendation (http://www.melexis.com/Quality_soldering.aspx) as well as trim&form recommendations (http://www.melexis.com/Assets/Trim-and-form-recommendations-5565.aspx). For wettable flanks packages, please refer to the Melexis Application Note “QFN wettable flanks specific handling”. Melexis is contributing to global environmental conservation by promoting lead free solutions. For more information on qualifications of RoHS compliant products (RoHS = European directive on the Restriction Of the use of certain Hazardous Substances) please visit the quality page on our website: http://www.melexis.com/quality.aspx Revision 023 – July 2020 3901080004 Page 38 of 39 MLX80002/MLX80004 Enhanced Universal Dual/Quad LIN Transceiver Datasheet 16. Disclaimer The content of this document is believed to be correct and accurate. However, the content of this document is furnished "as is" for informational use only and no representation, nor warranty is provided by Melexis about its accuracy, nor about the results of its implementation. Melexis assumes no responsibility or liability for any errors or inaccuracies that may appear in this document. Customer will follow the practices contained in this document under its sole responsibility. This documentation is in fact provided without warranty, term, or condition of any kind, either implied or expressed, including but not limited to warranties of merchantability, satisfactory quality, non-infringement, and fitness for purpose. Melexis, its employees and agents and its affiliates' and their employees and agents will not be responsible for any loss, however arising, from the use of, or reliance on this document. Notwithstanding the foregoing, contractual obligations expressly undertaken in writing by Melexis prevail over this disclaimer. This document is subject to change without notice, and should not be construed as a commitment by Melexis. Therefore, before placing orders or prior to designing the product into a system, users or any third party should obtain the latest version of the relevant information. Users or any third party must determine the suitability of the product described in this document for its application, including the level of reliability required and determine whether it is fit for a particular purpose. This document as well as the product here described may be subject to export control regulations. Be aware that export might require a prior authorization from competent authorities. The product is not designed, authorized or warranted to be suitable in applications requiring extended temperature range and/or unusual environmental requirements. High reliability applications, such as medical life-support or life-sustaining equipment or avionics application are specifically excluded by Melexis. The product may not be used for the following applications subject to export control regulations: the development, production, processing, operation, maintenance, storage, recognition or proliferation of: 1. chemical, biological or nuclear weapons, or for the development, production, maintenance or storage of missiles for such weapons; 2. civil firearms, including spare parts or ammunition for such arms; 3. defense related products, or other material for military use or for law enforcement; 4. any applications that, alone or in combination with other goods, substances or organisms could cause serious harm to persons or goods and that can be used as a means of violence in an armed conflict or any similar violent situation. 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In particular, the recipient shall (i) hold document in confidence with at least the same degree of care by which it maintains the confidentiality of its own proprietary and confidential information, but no less than reasonable care; (ii) restrict the disclosure of the document solely to its employees for the purpose for which this document was received, on a strictly need to know basis and providing that such persons to whom the document is disclosed are bound by confidentiality terms substantially similar to those in this disclaimer; (iii) use the document only in connection with the purpose for which this document was received, and reproduce document only to the extent necessary for such purposes; (iv) not use the document for commercial purposes or to the detriment of Melexis or its customers. The confidentiality obligations set forth in this disclaimer will have indefinite duration and in any case they will be effective for no less than 10 years from the receipt of this document. This disclaimer will be governed by and construed in accordance with Belgian law and any disputes relating to this disclaimer will be subject to the exclusive jurisdiction of the courts of Brussels, Belgium. The invalidity or ineffectiveness of any of the provisions of this disclaimer does not affect the validity or effectiveness of the other provisions. The previous versions of this document are repealed. Melexis © - No part of this document may be reproduced without the prior written consent of Melexis. (2020) IATF 16949 and ISO 14001 Certified For the latest version of this document, go to our website at www.melexis.com Or for additional information contact Melexis Direct: Europe, Africa, Asia: America: Phone: +32 1367 0495 Phone: +1 603 223 2362 E-mail: sales_europe@melexis.com E-mail: sales_asia@melexis.com E-mail: sales_usa@melexis.com Revision 023 – July 2020 3901080004 Page 39 of 39
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