Infineon introduces Motix motor controller and three-phase gate driver

Infineon Technologies has launched the programmable motor controllers Motix IMD700A and IMD701A. They come in 9.0 x 9.0mm 2 64-pin VQFN packaging, suitable for use in drones, e-bikes and automated guided vehicles as well as cordless power tools and gardening products.

The Motix IMD70xA controllers combine the Motix 6EDL7141 three-phase gate driver IC features with an additional XMC1404 microcontroller (MCU), whose peripherals and specifications are optimised for motor control and drives. Infineon’s XMC1404 MCU includes a math co-processor clocked at 96MHz to enhance calculations commonly used in sensorless field-oriented control (FOC) algorithms, enabling higher system performance. XMC1404 inherits most of the peripherals found in the XMC4000 family, including PWM timers, position interface (POSIF), and serial communication modules (including CAN).

The motor control IC features controllability of the gate drive slew rate to minimise system EMI. IMD70xA controllers support adjustable gate drive supply voltage even at low battery voltage levels thanks to built-in high- and low-side charge pumps, as well as many other adjustable gate driver parameters. EMI management by the digital configuration of the gate drive enables optimisation at the EMI test facility without needing to change any components on the board. In addition, both products come with a full suite of motor-drive-specific system protection features such as over current protection (OCP), under-voltage lock-out (UVLO), over-temperature and locked rotor detection.

The new devices offer integrated precision power supply and current-sense amplifiers, further reducing the need for peripheral circuitry and thus external component count and PCB space, according to the company. This leads to simplified routing and brings down bill of materials (BoM) and assembly costs while offering improved system packaging possibilities for designers to house motor drives in small and awkwardly-shaped cavities. Thanks to the 6EDL7141 gate driver, highly-configurable functions can be set from a GUI (graphical user interface) tool, which interfaces with a PC through an serial peripheral interface (SPI) connected via a USB port.

Infineon’s Motix IMD700A and IMD701A three-phase motor controller ICs are available in a 64-pin VQFN package with exposed bottom-side thermal pads. 

Embedded World is being held in Nuremberg, Germany (21 to 23 June, 2022). Infineon will be exhibiting at Embedded World in Nuremberg, Germany (21 to 23 June, 2022), Hall 4a -138.

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