LIN slave chip connects switch modules, IO-extensions to LIN network
The integration of LIN physical layer, voltage regulator and integrated application IO's results in a reduction in component cost. The integration of LIN controller and approved LIN driver make switch modules speak LIN within very short time, the vendor promises.
Incorporating the Melexis LIN transceiver physical layer, Melexis LIN ASSPs (Application Specific Standard Products) guarantee world leading integrated ESD protection results. The LIN protocol handler meets all LIN standards like LIN2.0, LIN2.1 as well as SAE J2602. In close collaboration with car manufacturers Melexis defines the configuration settings of the ASSPs to assure a straightforward fit across different applications and car platforms.
The MLX80104 is a integrated LIN slave one a single Die. All necessary components like physical layer LIN tranceiver, LIN controller, voltage regulator, application controller as well as supporting functions like ADC, PWM generation as well as high voltage capable IOs are integrated. This high integration level should reduce the BOM dramatically and enable the development of small, compact LIN slave modules.
Thanks to the established Melexis dual task microcontroller implementation, an already approved LIN driver can be used and the application can completely decoupled from the LIN network load. For application software a 16-bit RISC microcontroller is integrated.
The MLX80104 draws less than 50uA of current in sleep mode and it is wake up capable via the LIN Bus as well as via connected switches or other wake up sources. The LIN slave supports switches in matrix as well as single switch configuration connected to 18 available IOs. All IOs are high voltage resistant and therefore also remote off module connections can be supported. Via eight interrupt capable IOs rotary encoder are supported. Different analog inputs can convert any analog signal like resistive encoders and resistive switches. An internal battery monitor enables supply voltage dependend functions.
To illuminate the switch module panel, 8 open drain PWM outputs are available with configurable PWM base frequency from 45Hz to 45kHz. With a message from the LIN master the LED output intensity can be adjusted according to OEM specific requirements.
All the above functions are implemented on one piece of silicon in an very small 5x5mm QFN package. This enables together with a minimum of external components LIN slave application on very small PCB space.
Mass production of the MLX80104 has started and samples are available today, Melexis says. For more information visit www.melexis.com
- Interface box connects to CAN and Ethernet
- GPS module consumes only 21mA in tracking mode
- LIN transceiver offers very low standby current plus strong EMC/ESD behaviour
- CAN to USB interface comes in new housing with galvanic isolation
- Enhanced LIN communication chips integrate voltage regulation, watchdog functionality
- Automotive 3-phase power module enables higher torque systems for lower fuel consumption
- First MOST150 INIC supporting USB 2.0 and coax physical layer
- Intelligent power modules aim at electric and hybrid vehicles
- RF switch for RKE and TPMS systems tolerates harsh environments
- Bluetooth all-in one module with antenna targets automotive use
- Bosch drives down fuel consumption - in a salami technique
- Automotive microcontroller benchmark takes energy efficiency into account
- Graphics chip recognizes nearby pedestrians and bicycles
- Study investigates V2V communications with motorcycles
- Lithium-ion batteries withstand 10.000 charging cycles
- Continental supplies powertrain for Renault's e-car Zoe
- Time for a new UI programming paradigm
- Audi picks Analog Devices for semiconductor program
- Volvo builds small e-car series for Siemens
- CAN transceiver family supports CAN FD, offers chokeless EMC performance
- Open Standards and Product Differentiation
- AV architecture on ARM Cortex SOCs
- Using Ethernet Applications to Optimize Automotive Electronics Platforms
- What's New In Power Management Electronics
- Communications between a plug-in EV and the EV supply equipment
- TTEthernet Scalable Real-Time Ethernet Platform