Date: 14/11/2011

LIN slave IC packs transceiver, controller, voltage regulator, app controller plus analog

Melexis extends its family of smart LIN slave ICs with a new reconfigurable LIN switch slave IC MLX80105 to connect to any door, roof, seat, steering wheel, dashboard, HVAC, light control or similar switch module requiring easy access via LIN.

The MLX80105 is a fully integrated LIN slave on a single chip. All of the necessary components; physical layer LIN transceiver, LIN controller, voltage regulator, application controller are integrated along with the supporting functions ADC, PWM generation and high voltage capable IOs.

The MLX80105 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 configurations connected to the 18 available IOs. All IOs are high voltage resistant for safely supporting remote off module connections. Via eight interrupt capable IOs rotary encoder are supported. Position monitoring and control for control dials and knobs, motors or actuators is dramatically simplified with added appeal to have direct physical input or software control and signal sharing among different systems. Analog inputs can convert any analog signal, like resistive encoders and resistive switches, to BUS messages for use by network-connected devices. An internal battery monitor enables supply voltage dependent 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.

"The MLX80105 is the perfect example of a LIN ASSP" says Michael Bender, LIN product line manager at Melexis. "From an application point of view it incorporates state of the art application expertise with maximum configurability into a miniature 5 by 5mm package. The integrated function gives all needed design freedom, while minimizing design time and qualification effort. There is absolutely no better choice in terms of risk, cost and performance for switch suppliers that want to catch the LIN wave"

Availability: Now in samples
Package: 5x5mm QFN package.