Smart LIN driver IC for DC, Stepper and BLDC motor (0.5 A)
MLX81330 Melexis
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
Top features
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Motor driver
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Driver for DC/BLDC/Stepper motor
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Ron = 3Ω typ. for 1 half-bridge + shunt
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2x NFET for each half-bridge
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on-chip charge-pump for top-NFETs
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Vds protection for all NFETs
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Microcontroller
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MLX16-FX, application CPU
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MLX4, communication CPU
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2x watch-dog
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+50 input interrupt controller
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Common purpose timer
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Memories split per CPU
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MLX16-FX memories:
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32 KB Flash with ECC
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8 KB ROM
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2 KB RAM
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512 B EEPROM
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MLX4 memories:
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6 KB ROM
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512 B RAM
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-
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Pin-compatible drivers in SO8 and QFN24
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MLX81330 < 0.5A
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MLX81332 < 1A
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Periphery
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Configurable RC-clock 12..32 MHz
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4x general purpose IO’s, digital, analog, 1x high-voltage input, SPI, I2C-slave
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5x 16-bit motor PWM timers
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2x 16-bit timers
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10-bit ADC with < 6 µs conversion time with multiple channels and different ADC references
-
Differential current sense amplifier
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Temperature sensor, over-temperature detection
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Over-current detection, over-voltage and under-voltage protection
-
-
Voltage regulators
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Internal voltage regulators, directly powered from 12V battery supply
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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
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LIN 2.x/SAE J2602 and ISO17987-4 compliant LIN slave
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Automotive AEC-Q100 qualified
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Designed for safety applications according to ASIL-B (ISO 26262)
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Maximum IC temperature (with validated mission profile) Tj = 175°C
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
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
