MLX80020KDC-BBA-000-TU Melexis

MLX80020 Enhanced LIN Transceiver Datasheet 1. Features RxD 1 8 INH Compatible to LIN Physical Layer Specification EN 2 7 VS MLX Rev.2.x and SAE J2602 80020 WAKE 3 6 LIN Baud rate up to 20 kBaud Wide operating voltage range V = 5 to 27 V TxD 4 5 GND S Very low standby current consumption of 10A in sleep mode Bus and local wake up capable with source recognition Control output for voltage regulator with low on resistance for switchable master termination Low EME(emission) and high EMI(immunity) level Fully compatible to 3.3V and 5V devices Integrated termination resistor for LIN slave nodes TxD dominant time out function Sleep timer to guarantee the most power saving mode after power on or wake up in case of faulty passive microcontroller High impedance Bus pin in case of loss of ground and undervoltage condition Bus short to ground protection Enhanced ESD robustness according to IEC 61000-4-2 RoHs compliant and AECQ-100 qualified Ordering Code Product Code Temperature Code Package Code Option Code Packing Form Code MLX80020 K DC BBA-000 TU MLX80020 K DC BBA-000 RE MLX80020 K DC BAA-000 TU MLX80020 K DC BAA-000 RE Legend: Temperature Code: K for Temperature Range -40C to 125C Package Code: DC for SOIC150Mil Option Code: BBA-000 for SAE J2602, BAA-000 for LIN 2.x Packing Form: RE for Reel, TU for Tube Ordering example: MLX80020KDC-BBA-000-TU 2. General Description The MLX80020 is a physical layer device for a single wire data link capable of operating in applications using baud rates from 1kBd to 20kBd. The MLX80020 is compatible to LIN2.x as well as to the SAE J2602 specifications. Because of the very low power consumption of the MLX80020 in the sleep mode its suitable for ECU applications with hard standby current requirements. The implemented high resistive termination in sleep mode as well as the driving capability of the INH pin 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 ECU into the most power saving sleep mode after power on or wake up events that are not followed by a mode change response of the microcontroller. The MLX80020 has an improved EMI performance and ESD robustness. The MLX80020 version with the ordering code extension A is suitable for applications with baud rates up to 20kbd. The version of the MLX80020 with the ordering code extension B is optimized for baud rates up to 10.4kbd as specified in the SAE J2602 standard. MLX80020 Enhanced LIN Transceiver Datasheet Contents 1. Features .............................................................................................................................................................. 1 2. General Description ............................................................................................................................................ 1 3. List of Figures...................................................................................................................................................... 3 4. Functional Diagram ............................................................................................................................................ 4 5. Pin Description ................................................................................................................................................... 5 6. Electrical Specification ........................................................................................................................................ 6 6.1. Operating Conditions ................................................................................................................................. 6 6.2. Absolute Maximum Ratings ....................................................................................................................... 6 6.3. Static Characteristics .................................................................................................................................. 7 6.4. Dynamic Characteristics ............................................................................................................................. 9 7. Functional Description...................................................................................................................................... 10 7.1. Operating Modes ..................................................................................................................................... 10 7.2. Initialization and Standby mode .............................................................................................................. 11 7.3. Normal Mode ........................................................................................................................................... 11 7.3.1. RxD .................................................................................................................................................... 11 7.3.2. TxD .................................................................................................................................................... 11 7.3.3. TxD dominant time-out feature ....................................................................................................... 11 7.3.4. EN ...................................................................................................................................................... 11 7.3.5. Data transmission speed .................................................................................................................. 12 7.3.6. Duty cycle calculation LIN 2.x ........................................................................................................... 12 7.3.7. Duty cycle calculation J2602:............................................................................................................ 13 7.4. Sleep Mode ............................................................................................................................................... 14 7.5. Wake Up ................................................................................................................................................... 14 7.6. Wake Up Source Recognition ................................................................................................................... 14 8. Fail-safe features .............................................................................................................................................. 16 8.1. Loss of battery .......................................................................................................................................... 16 8.2. Loss of Ground ......................................................................................................................................... 16 8.3. Short circuit to battery ............................................................................................................................. 16 8.4. Short circuit to ground ............................................................................................................................. 16 8.5. Thermal overload ..................................................................................................................................... 16 8.6. Undervoltage lock out .............................................................................................................................. 16 8.7. Open Circuit protection ............................................................................................................................ 16 9. Application Hints .............................................................................................................................................. 17 9.1. Application Circuitry ................................................................................................................................. 17 10. Mechanical Specification SOIC8 ..................................................................................................................... 18 11. Tape and Reel Specification ............................................................................................................................ 19 11.1. Tape Specification .................................................................................................................................. 19 11.2. Reel Specification ................................................................................................................................... 20 REVISION 007 - JULY 2017 3901080020 PAGE 2 OF 24