MLX80050KDC-BAA-000-TU Melexis

MLX80050/51/30/31 LIN System Basis ICs Datasheet 1 8 VS VCC Features 2 7 EN NRES MLX80030/50 LIN 2.x / SAE J2602 compliant 3 5 GND TxD Operating voltage V = 5 ... 27 V SUP 4 5 LIN RxD 3 modes: Normal, Silent and Sleep Linear low drop voltage regulator: MLX80030/31: Normal mode 3.3V/70mA 2% Silent mode 3.3V/20mA 2% MLX80050/51: Normal mode 5V/70mA 2% Silent mode 5V/20mA 2 Low current consumption (typ) Sleep mode 20 A Silent mode noload 45 A Output current limitation LIN-Bus Transceiver Baud rate up to 20 kBaud Slew rate control for best EME behaviour Low slew mode for optimized SAE J2602 transmission High impedance LIN pin in case of loss of ground or battery Remote and local wake up source recognition VCC undervoltage detection at NRES output (start-up delay 4ms) Vres threshold 3.0 V (MLX80030/31) Vres threshold 4.1V (MLX80050/51) Programmable Window Watchdog (only MLX80031/51) VSUP undervoltage detection (POR), Over temperature shutdown TxD dominant time out function, Standby mode time out after 350ms Automotive temperature range of 40C to 125C Interface I/Os independent from voltage regulator output Enhanced ESD robustness according to IEC 61000-4-2 Direct discharge for pin LIN >20kV (only Lin cap connected) and for pin VBAT >15kV Indirect discharge for pin LIN >15kV Load dump protected (40V) Order Code Temp. Range Package Delivery Remark MLX80050KDC-CAA-100-RE -40 - 125 C SOIC8 Reel Silent Mode enabled MLX80051KLW-CAA-100-RE -40 - 125 C QFN WF20/5x5 Reel Silent Mode enabled MLX80030KDC-CAA-100-RE -40 - 125 C SOIC8 Reel Silent Mode enabled MLX80031KLW-CAA-100-RE -40 - 125 C QFN WF20/5x5 Reel Silent Mode enabled Short Description The MLX8005x/3x consist of a low-drop voltage regulator 5V/3.3V/70mA combined with a Reset/Watchdog unit and a LIN bus trans- ceiver. The LIN transceiver is suitable for LIN bus systems conform to LIN specification revision 2.x and SAE J2602. The watchdog times of the integrated window watchdog can be adapted on application needs via external resistors. With the help of an external bipolar transistor it is possible to extend the output current of the integrated voltage regulator. The combination of voltage regulator and bus transceiver as well as watchdog unit makes it possible to develop simple, but powerful and cheap slave nodes in LIN Bus systems. REVISION 13 March 2020 P a g e 1 3901080050 MLX80050/51/30/31 LIN System Basis ICs Datasheet Contents 1. LIST OF TABLES .................................................................................................................................. 4 2. LIST OF FIGURES ................................................................................................................................ 4 3. ELECTRICAL SPECIFICATION ............................................................................................................... 5 3.1. DC CHARACTERISTICS ........................................................................................................................... 6 3.2. AC CHARACTERISTICS ......................................................................................................................... 11 3.3. TIMING DIAGRAMS ............................................................................................................................. 14 4. PIN CONFIGURATION ...................................................................................................................... 15 4.1. MLX80030 AND MLX80050 - SOIC8 ............................................................................................... 15 4.2. MLX80031 AND MLX80051 IN QFN20 ............................................................................................ 16 3. FUNCTIONAL DESCRIPTION ............................................................................................................. 17 3.1. SUPPLY PIN VS .................................................................................................................................. 19 3.2. EN INPUT PIN .................................................................................................................................... 19 3.3. GROUND PIN GND ............................................................................................................................ 19 3.4. LIN.................................................................................................................................................. 19 3.5. RECEIVER OUTPUT RXD ...................................................................................................................... 19 3.6. TRANSMIT INPUT TXD ........................................................................................................................ 19 3.6.1. TxD dominant time-out feature .......................................................................................... 19 3.7. OUTPUT NRES .................................................................................................................................. 20 3.8. VOLTAGE REGULATOR PINS VCC AND RTG ............................................................................................ 20 3.9. INH OUTPUT (ONLY MLX80031/51) ................................................................................................. 20 3.10. WAKE INPUT (ONLY MLX80031/51) ............................................................................................... 20 3.11. KL15 INPUT (ONLY MLX80031/51) ................................................................................................. 20 3.12. WATCHDOG TRIGGER INPUT NWDI (ONLY MLX80031/51) ................................................................ 20 3.13. WATCHDOG OSCILLATOR RESISTOR RB (ONLY MLX80031/51) ........................................................ 20 WD 3.14. MODE INPUT MODE (ONLY MLX80031/51) .................................................................................... 20 4. OPERATIONAL MODES .................................................................................................................... 21 4.1. MODES OVERVIEW ............................................................................................................................ 22 4.2. INITIALISATION AND STANDBY MODE ..................................................................................................... 23 4.3. NORMAL MODE ................................................................................................................................ 23 4.4. SILENT MODE.................................................................................................................................... 24 4.5. SLEEP MODE ..................................................................................................................................... 25 4.6. INIT-STATE ........................................................................................................................................ 27 5. WAKE UP PROCEDURES................................................................................................................... 28 5.1. WAKE UP SOURCE RECOGNITION IN MLX80031/51 ............................................................................. 28 6. FUNCTIONALITY .............................................................................................................................. 29 6.1. RESET BEHAVIOUR OF MLX8003X/5X ................................................................................................ 29 6.2. THERMAL SHUTDOWN ........................................................................................................................ 29 6.3. VS UNDER VOLTAGE RESET .................................................................................................................. 29 6.4. LIN-TRANSCEIVER .............................................................................................................................. 30 REVISION 13 March 2020 P a g e 2 3901080050