Atmel Launches Highly-Integrated MotorDriver IC for Smaller Designs with Improved EMC Performance
Atmel® Corporation has announced the availability of its highly-integrated ATA6026 motor driver IC, the first member of a new, upcoming motor driver family. The ATA6026 is designed using Atmel's high-voltage BCDMOS process and is ideal for applications in harsh environments. Due to an optimized communication interface, the IC is well suited for high-volume DC motor applications such as windshield wiper systems, door locks, or seat position adjusters.
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It is used to drive continuous-current motors in full H-bridge configurations, and supports PWM and direction-controlled driving of four power MOSFETs.
The ATA6026 includes a differential SCI transceiver to reduce radiation emission for improved EMC performance which is very important since the device is usually located close to the car radio. In a dual front wiper system, one ATA6026 motor driver is used for the left wiper and a second for the right wiper.
The gate driver IC is highly integrated and includes a 5V/100 mA voltage regulator plus a window watchdog resulting in fewer external components for smaller designs requiring less PCB area. The motion control is carried out by the IC so this function does not need additional memory in the microcontroller. Due to the monolithic integration of the voltage regulator, motion control, and the watchdog in one small QFN32 package, overall system costs can be reduced while maintaining the flexibility of the output stages for plug-and-play use in almost any kind of motor driver application without needing adaptation.
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