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MLX81100 General Description

The MLX81100 controls, diagnoses and protects a reversible DC motor application using only simple power NMOSFETs. It integrates all standard automotive protections to plug it directly on to the 12V board net, including over-voltage, short circuit and load dump (40V) protection. The integrated MOSFET gate-driver and FET monitoring circuits on one chip make additional FET predriving circuits superfluous and reduces significantly the systems BOM.

The extended high temperature operating range up to 150°C ambient temperature make it possible to use this highly integrated solution also for those application with higher ambient temperatures. This makes it possible to use this IC especially for mechatronic applications where the driving electronic is directly connected to the actuator.

Together with our certified LIN driver (physical and protocol) the development of LIN applications is simplified.

For position detection the MLX81100 can be easy interfaced to the Melexis absolute position sensor MLX90316 as well as standard hall position sensors.

MLX81100 Features and Benefits

• CPU
• - MelexCM CPU
• - Dual RISC CPU MLX4/16 – 5MIPS
• - LIN protocol controller
• - 16-bit application CPU
• - Internal RC-Oscillator
• Memories
• - 2kbyte RAM, 32kbyte Flash, 128 byte EEPROM
• - Flash for series production
• Periphery
• - Three 16-bit timer with capture and compare
• - Full duplex SPI interface
• - 100-kBaud UART
• - 2 high and 2 low side FET driver with protection
• - Over temperature control
• - Short circuit protection
• - Current control
• - 8-bit PWM control with programmable base frequency of 100Hz to 100kHz
• - 8 high voltage I/Os
• - 16-channel 10-bit ADC with high voltage option
• - Independent analog watchdog
• - Temperature sensor
• Voltage Regulator
• - Direct powered from 12V boardnet with low voltage detection
• - Operating voltage VS = 7V to 18V
• - Internal voltage regulator with external load capability of 20mA
• - External Load transistor for higher 5V loads possible
• - Very low standby current, < 50µA in sleep mode
• Bus Interface
• - LIN transceiver
• - Supporting of LIN 2.0 and SAE J2602
• - LIN protocol software provided by Melexis
• - Wake up by LIN traffic or local sources
• Additional Features
• - On-chip CPU debugger
• - Jump start and 40V load dump protected

MLX81100 Related Products

Part Number	Description
MLX80151	High current NFET half bridge motorcontroller

driveXpert GmbH
Ehrenbergstraße 11
Ilmenau  98693
Tel: +49 3677 7996690
Fax: +49 3677 7996691
Mail: info@drivexpert.de
Web: http://www.drivexpert.de/CMS/index.php

driveXpert offers to customers:

BLDC-Motor development on request:
Magnetic simulation and measurement,
Motor Design
Rapid prototyping towards 1st motor

Samples
Pure consulting as well as full drive system
developments:
Motor development

Mechatronics integration
Electronics development in HW and SW
HW and SW consulting service as well as
developments based on Melexis
motor controllers:

MLX81200/01, MLX81205/07/10/15
MLX80251

MLX81100, MLX81150
MLX80151

Melexis and driveXpert are working together:

In the field of BLDC motor control for:
Classic BLDC motors
Switched Reluctance (SR-Motors)

Melexis and driveXpert sponsor a team
of the World Econ Move race in Japan
with a new BLDC motor and
drive electronics

MLX81100 Applications

• DC Motor Control
• Window Lifter
• Local Interconnect Network (LIN)

Application Note	File Type	Size	Revision	Date	Action
Example Circuits MLX81100	PDF	279.6 KB	1.0	9/8/2008
Frequently Asked Questions about MLX81100	PDF	441.7 KB	1.0	9/8/2008
Power Dissipation of MLX81100	PDF	136.5 KB	1.0	9/8/2008
PWM based communication interface with MLX81100	PDF	100.7 KB	1.1	7/18/2008
Software Development Kit Short Description	PDF	2.3 MB	1.0	9/8/2008

MLX81100 Documentation

DataSheet	File Type	Size	Revision	Date	Action
MLX81100 - Short Datasheet	PDF	407.1 KB	018	9/11/2008

MLX81100 Tools

Software & Tools	File Type	Size	Revision	Date	Action
Softdist server			002	4/29/2012

MLX81100 Environmental Information

Environmental Information	File Type	Size	Revision	Date	Action
Green / Halogen Free Compliance Declaration MLX81100	PDF	39.3 KB	2.0	2/25/2010
Package Material Declaration - QFN40 6x6 GR - S1	PDF	107.5 KB	5.0	1/25/2012
Package Material Declaration - TQFP48_EP 7x7 GR - S1	PDF	107.8 KB	4.0	1/25/2012

MLX81100 In The Press

Related Melexis News

January 9, 2007
Highly Integrated DC motor controller with Bridge predriver for Smart Actuators

MLX81100 Frequently asked Questions

DC motor IC:PWM out and Hall inputs

Answer
The MLX81100 is the standard product for Dc motor control. The MLX81200 is the standard product for BLDC motor control.

General quesions for MLX81xxx

Answer
This generic product reference serves as indication of a range of standard products that will be coming on the market in the near future, similar to MLX81100 for DC motor control, and to custom designed ASICs. So it does not refer to a specific product as such. Please contact our nearest sales representative to explain your application requirements. In some cases you can be selected as lead customer for products that are not yet officially released to the public.

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