High resolution microstepping control is possible via independent current control reference voltage inputs for each full bridge. What step sequencing options exist for the A? Pull it up to V DD through a 51 kW resistor or ground it. Click the image to view larger. Is this a constant-current or constant-voltage controlled device?

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Allegro MicroSystems – A DMOS Dual Full-Bridge Microstepping PWM Motor Driver

The item you’ve selected was not added to your cart. Samples are no longer available. Media Subscription Media Contacts. The following components are required: Product is in volume production Evaluation: What protection features come with the A?

Product is in volume production only to support customers ongoing production. Are there layout concerns that I should microstfpping aware of?

A3972: Dual DMOS Full-Bridge Microstepping PWM Motor Driver

Back to home page. A brand-new, unused, unopened, undamaged item in its original packaging where packaging is applicable. Each full-bridge output is rated up to 1. Subject to credit approval. Not Recommended for New Design. People who viewed this item also viewed.


The device also includes two independent constant off time PWM current controllers that performs the chopping regulation. Interest will be charged to your account from the purchase date if the balance is not paid microsstepping full within 6 months.

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The desired load-current level is set via the serial port with two 6-bit linear DACs in conjunction with a reference voltage. Internal circuit protection includes short-to-ground, shorted load, thermal shutdown with hysteresis, and crossover current protection.

The A is supplied in a thin profile 1. Internal synchronous rectification control circuitry is provided to improve power dissipation during PWM operation. Product is under characterization.

What is the function of the MUX pin? When using external diodes, synchronous rectification should be disabled to achieve maximum results. V REG – This should be decoupled with a 0. Are there recommended setup functions for Word 0 and Word 1?


Product is in volume production.

5PCS-ASBT-Encapsulation-DIPDMOS-Dual-Full-Bridge-Microstepping-PWM | eBay

If I use the internal oscillator what do I do with the external oscillator pin? Communications Equipment, Computers and Peripherals. This feature will eliminate the need for external clamp diodes in most applications, saving cost and external component count, while minimizing power dissipation. Economy Shipping from outside US.

If more than 19 bits are clocked into the serial port, what happens to the “excess” bits? IoT for Smart Things. Pull it up to V DD through a 51 kW resistor or ground it.

What is the maximum allowable motor supply voltage? Reducing torque variation in half step drive.

For additional information, please refer to the application note AN