Tag Archives: motor driver family

Under the hood with Atmel tech

Engineers building complex systems slated for “under the hood” tasks know there is little room for weak designs in such demanding environments.

Indeed, high temperatures, strong mechanical vibration and fluctuating electromagnetic fields demand the inclusion of products based on decades of optimized architecture, meticulous manufacturing and robust testing.

And that is why Atmel’s motor driver family targets brushed and brushless DC motors capable of operating in standard temperature – or even more demanding hot engine environments.

“A wide variety of combinations integrate high-side and low-side output stages so manufacturers can easily tailor solutions to suit customer needs,” an Atmel engineering rep told Bits & Pieces. “Plus, our driver portfolio includes ICs for small DC motors controlled directly from the output stages, as well as motor driver system basis chips, with integrated gate drivers or pre-drivers to control separate NMOSFETs of almost any size.”

Key features include rugged design, with Atmel’s unique BCD-on-SOI architecture combining high-voltage capability with the benefits of rugged SOI technology: high temperature resistance (T-junctions up to 200°C), optimized radiation hardness, very low leakage currents, low parasitics, high switching frequency and latch-up immunity.

We also offer cost-effective ICs that require few external components, because capabilities such as LIN connectivity and diagnostics are already built in. Plus, all Atmel drivers share the same protective features—over-temperature warning and switch-off, as well as under-voltage, over-current, short-circuit and open-load detection.

Interested in learning more about Atmel’s extensive motor driver portfolio? Be sure to check out our full device breakdown here.

Atmel motor control systems for the automotive masses

Atmel has more than 15 years of experience with driver ICs for DC motors, supplying products at a high-volume for a variety of common body electronic applications, including mirror control and flap control in HVACs.

Although Atmel driver ICs are equipped with a variety of types of driver stages, they all share the same protection features – short-circuit protection, temperature warning and switch off, low voltage protection and open load detection – all of which are a must for automotive electronics.

“The continuously growing Atmel driver family includes a wide variety of combinations of integrated high-side and low-side output stages, enabling designers to easily tailor solutions to their needs,” an Atmel engineering rep told Bits & Pieces.

“Our driver portfolio includes ICs for small DC motors controlled directly from the output stages. At the heart of the Atmel portfolio are motor driver system basis chips, with integrated gate drivers or pre-drivers to control separate NMOSFETs. These drivers can be used to control almost any size of NMOSFETs, for use in a broad range of applications.”

With few external components, the Atmel driver ICs with LIN communication and the Atmel AVR microcontrollers combine to create cost-efficient motor driver modules, complete with LIN functionality for harsh automotive conditions.

“In short, the Atmel motor driver family targets applications with brushed and brushless DC motors for standard temperature applications, as well as demanding high-temperature ‘under-the-hood’ applications,” the engineering rep added.

Interested in learning more about Atmel’s motor control systems? Be sure to check out our full device breakdown here.