Product category:
Communications ICs (Wired)
News Release from: Melexis | Subject: MLX80103
Edited by the Electronicstalk Editorial
Team on 23 October 2006
LIN switch meets car makers' demands
Melexis has extended its family of smart LIN slave ICs with a reconfigurable LIN switch slave.
Melexis has extended its family of smart LIN slave ICs with a reconfigurable LIN switch slave Developed jointly with BMW Group, the MLX80103 can be used to interface with any door, roof, seat, steering wheel, dashboard, HVAC, light control or similar switch module
This article was originally published on Electronicstalk on 17 Oct 2003 at 8.00am (UK)
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The integration of LIN physical layer, voltage regulator and integrated application I/Os results in a reduction in component cost.
The integration of LIN controller and the set of predefined LIN identifiers make switch modules speak LIN in no time.
Incorporating the Melexis LIN transceiver physical layer that is already approved by and in use with most car manufacturers today, Melexis LIN ASSPs (application specific standard products) guarantee state of the art physical layer qualification results.
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The LIN protocol handler meets the current LIN 2.0 standard and can be easily extended for future LIN 2.1.
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 MLX80103 draws less than 30uA of current in sleep mode and it is wake-up capable via the LIN bus as well as via the switches.
Configurable debounce and sampling times easily accommodate a variety of demanding application requirements.
The LIN switch slave can be configured to read out up to 34 switches in matrix configuration or as single switches.
The information of up to two digital encoded rotary switches, is provided on a simple request of the LIN master.
Three high-voltage-protected analogue inputs can convert any analogue signal including the battery supply, resistive encoders and resistive switches.
To illuminate the switch module panel, three slew-rate-limited open-drain PWM outputs are available with configurable output currents up to 50mA.
With a message from the LIN master the LED output intensity can be adjusted according to OEM specific requirements.
The current range can be further extended to drive multiple LEDs in parallel, or, by using external bipolar transistors, it can drive switching relays.
"The MLX80103 is the perfect example of a LIN ASSP", says Michael Bender, LIN Product Manager at Melexis.
"From an application point of view it incorporates state of the art application expertise with maximum configurability into a miniature 6 x 6mm package".
"From a system design point of view it is really plug and play, with no strings attached".
"The configurability gives all needed design freedom, whilst minimising design time and qualification effort".
"There are no compromises made regarding the ESD and EMC performance of our market leading LIN transceivers, and our LIN handler has been proven in the field as well".
"There is absolutely no better choice in terms of risk, cost and performance for switch suppliers that want to catch the LIN wave".
Mass production has started, and samples are available today.
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