MLX80302 – Three Phase BLDC Motor Controller IC with a Peak Driving Capability of 2.6 A for Automotive and Motorcycle Pump Applications

The MLX80302 from Melexis is a lately introduced smart 3-phase motor controller with integrated power FETs. Optimized for driving brushless DC motors with RMS current up to 1.8 A and start-up current up to 2.6 A, the device is best suited for automotive and motorcycle pump applications up to 20 W on the 13 V battery voltage. Besides, the MLX80302 is apt for a wide range of home appliances and industrial pump applications up to 40 W on a 24 V regulated supply.

The device offers extensive integrated protection including a locked rotor, over-temperature, overvoltage, short circuit, and current limiting. The motor control operation is validated for robust operation with a remote motor location in very noisy environments, tests including BCI, and ignition coil noise injection. The fast start-up (down to 50 ms) of the device is robust under load- and no-load conditions. The operating voltage ranges from 6.0 V up to 28 V. To speed up the development, the device comes with the application board (APP80302) and evaluation board (EVB80302).

The MLX80302 is available in an 8-pin SOIC package with an exposed pad. The device has been designed and qualified to support permanent operation at a junction temperature TJ in the range of -40 °C to 150 °C. It requires only reverse polarity protection and a single decoupling capacitor which makes it ideal for integration into a pump connector.

The device is programmable via an I²C interface and all options are configurable in the on-board EEPROM. Various PWM input options can be selected, and the motor start-up procedure can be configured to reach the maximum target speed for fuel pumps under pressure in less than 60 ms.

The, ‘plug and play’ application boards and evaluation boards for configuring the IC via I²C using a graphical interface are available now from the company website.

Features of MLX80302

• 3-phase motor controller with integrated power FETs
• RMS current up to 1.8 A and start-up current up to 2.6 A
• Fast start-up (down to 50 ms)
• Operating voltage ranges from 6.0 V up to 28 V.
• Available in an 8-pin SOIC package with exposed pad
• Junction temperature TJ in the range of -40 °C to 150 °C
• Provides an I²C interface for end-of-line programming (of the EEPROM) and motor control
• Comes with application board (APP80302) and evaluation board (EVB80302)
• Programmable via an I²C interface

Note: More technical information can be found on the MLX80302 product page from where you can place a request for the datasheet too.