The MLX81330 is a gen-3 LIN driver for small motors targeting automotive mechatronic applications at up to 10 W
MLX81330: LIN motor driver IC < 0.5 A
MLX81332: LIN motor driver IC < 1 A

Read more

Top features

  • Motor driver

    • Driver for DC/BLDC/Stepper motor

    • Ron = 3Ω typ. for 1 half-bridge + shunt

    • 2x NFET for each half-bridge

    • on-chip charge-pump for top-NFETs

    • Vds protection for all NFETs

  • Microcontroller

    • MLX16-FX, application CPU

    • MLX4, communication CPU

    • 2x watch-dog

    • +50 input interrupt controller

    • Common purpose timer

  • Memories split per CPU

    • MLX16-FX memories:

      • 32 KB Flash with ECC

      • 8 KB ROM

      • 2 KB RAM

      • 512 B EEPROM

    • MLX4 memories:

      • 6 KB ROM

      • 512 B RAM

  • Pin-compatible drivers in SO8 and QFN24

    • MLX81330 < 0.5A

    • MLX81332 < 1A

  • Periphery

    • Configurable RC-clock 12..32 MHz

    • 4x general purpose IO’s, digital, analog, 1x high-voltage input, SPI, I2C-slave

    • 5x 16-bit motor PWM timers

    • 2x 16-bit timers

    • 10-bit ADC with < 6 µs conversion time with multiple channels and different ADC references

    • Differential current sense amplifier

    • Temperature sensor, over-temperature detection

    • Over-current detection, over-voltage and under-voltage protection

  • Voltage regulators

    • Internal voltage regulators, directly powered from 12V battery supply

    • Operating voltage Vs = 5.5V to 20V

    • Operation down to 3.5V with reduced analog characteristics, down to 3V without losing register content, down to 1.5V with intact RAM memory

    • Low standby current consumption of typ 25µA (max 50 µA) in sleep mode

    • Wake-up possible via LIN, external pins or internal wake-up timer

  • Bus interface

    • LIN 2.x/SAE J2602 and ISO17987-4 compliant LIN slave

  • Automotive AEC-Q100 qualified

  • Designed for safety applications according to ASIL-B (ISO 26262)

  • Maximum IC temperature (with validated mission profile) Tj = 175°C

Discover all features
Smart LIN driver IC for DC, Stepper and BLDC motor (0.5 A) - MLX81330

Product description

The MLX81330 is a gen-3 LIN driver for small motors targeting automotive mechatronic applications at up to 10 W. This all-in-one LIN driver enables small-footprint applications to control small BLDC, stepper and DC motors, using either sensored or sensorless field-oriented control (FOC) algorithms.

The MLX81330 is well suited for
- small Stepper / BLDC flap or valve, < 0.5Apk per phase
- small DC flap / valve, or single-coil fan/pump, < 0.7Apk

 

 

 

 

 

 

 

MLX81330 Block Diagram

Features and benefits

  • Motor driver

    • Driver for DC/BLDC/Stepper motor

    • Ron = 3Ω typ. for 1 half-bridge + shunt

    • 2x NFET for each half-bridge

    • on-chip charge-pump for top-NFETs

    • Vds protection for all NFETs

  • Microcontroller

    • MLX16-FX, application CPU

    • MLX4, communication CPU

    • 2x watch-dog

    • +50 input interrupt controller

    • Common purpose timer

  • Memories split per CPU

    • MLX16-FX memories:

      • 32 KB Flash with ECC

      • 8 KB ROM

      • 2 KB RAM

      • 512 B EEPROM

    • MLX4 memories:

      • 6 KB ROM

      • 512 B RAM

  • Pin-compatible drivers in SO8 and QFN24

    • MLX81330 < 0.5A

    • MLX81332 < 1A

  • Periphery

    • Configurable RC-clock 12..32 MHz

    • 4x general purpose IO’s, digital, analog, 1x high-voltage input, SPI, I2C-slave

    • 5x 16-bit motor PWM timers

    • 2x 16-bit timers

    • 10-bit ADC with < 6 µs conversion time with multiple channels and different ADC references

    • Differential current sense amplifier

    • Temperature sensor, over-temperature detection

    • Over-current detection, over-voltage and under-voltage protection

  • Voltage regulators

    • Internal voltage regulators, directly powered from 12V battery supply

    • Operating voltage Vs = 5.5V to 20V

    • Operation down to 3.5V with reduced analog characteristics, down to 3V without losing register content, down to 1.5V with intact RAM memory

    • Low standby current consumption of typ 25µA (max 50 µA) in sleep mode

    • Wake-up possible via LIN, external pins or internal wake-up timer

  • Bus interface

    • LIN 2.x/SAE J2602 and ISO17987-4 compliant LIN slave

  • Automotive AEC-Q100 qualified

  • Designed for safety applications according to ASIL-B (ISO 26262)

  • Maximum IC temperature (with validated mission profile) Tj = 175°C

Related tech talks

Automotive functional safety ISO 26262

Automotive functional safety ISO 26262

Within the increasing complexity of technologies in vehicles, the assurance of their proper functionality is becoming a major concern. Melexis follows the ISO 26262 to reduce the risks caused by systematic and random failures. Discover more about ASIL.
Read more
Position sensors for motor control feedback loop

Position sensors for motor control feedback loop

Electrical motors are complex systems. In this area there are motor drivers that can perfectly operate without a position sensor (sensorless). So why add extra component(s)?
Read more

Practical applications

thumbnail BEV thermal management

BEV thermal management

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Ideal performance of the battery requires a temperature between 20-40℃, no matter the external conditions. Without the heat source of a classical ICE, new sources for heating & cooling need to be optimized. Discover the different modes.

Read more
thumbnail BEV thermal management

BEV thermal management - heat cabin

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Ideal performance of the battery requires a temperature between 20-40℃, no matter the external conditions. Without the heat source of a classical ICE, new sources for heating & cooling need to be optimized. Discover the different modes.

Read more
thumbnail BEV thermal management

BEV thermal management - heat battery

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Ideal performance of the battery requires a temperature between 20-40℃, no matter the external conditions. Without the heat source of a classical ICE, new sources for heating & cooling need to be optimized. Discover the different modes.

Read more
thumbnail BEV thermal management

BEV thermal management - cool cabin

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Ideal performance of the battery requires a temperature between 20-40℃, no matter the external conditions. Without the heat source of a classical ICE, new sources for heating & cooling need to be optimized. Discover the different modes.

Read more
thumbnail BEV thermal management

BEV thermal management - cool battery

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Ideal performance of the battery requires a temperature between 20-40℃, no matter the external conditions. Without the heat source of a classical ICE, new sources for heating & cooling need to be optimized. Discover the different modes.

Read more
Application - ICE gasoline thumbnail

ICE gasoline after treatment

We always need to save energy by all means, so ICE after treatment optimization is of no question. Efficiency and emission reduction are essential results of ICE after treatment.

Read more
Application - ICE gasoline thumbnail

ICE gasoline air management

Air is to an ICE what air is to the human body. Therefore it is essential to manage it efficiently, especially because it leads to better performances and less emissions.

Read more
application thermal management PHEV thumbnail

PHEV thermal management

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Melexis products enable higher system integration towards a safer and cost-effective thermal management, maximizing the AER and improving the driver experience.

 

Read more
application Main DCDC thumbnail

main DCDC

The DC/DC converter produces low voltage DC electricity (e.g. 12 V, 14 V, 24 V) from the high voltage battery (e.g. 48 V up to 800 V) to supply the boardnet and charge the low voltage battery.

Read more