STA7130MPR Series: 2-Phase Stepper Motor Unipolar Driver ICs

The STA7130MPR series are driver ICs for driving unipolar mode, 2-phase stepper motors. These drivers are designed for low-voltage (up to 44 V output) motor applications. The series provides a range of maximum output currents from 1 to 2 A, in pin-compatible proprietary (model STA) packages, allowing system optimization with reduced printed circuit board requirements. The logic section provides four modes of operation: forward and reverse normal drive rotation, outputs-off free spin (coast), and electronic braking.

The innovative multi-chip internal structure separates the main logic IC (MIC) from the four output N-channel power MOSFETs. This results in lower thermal resistance and greater efficiency. PWM control allows constant-current control of output while reducing heat generation and power losses by synchronous rectification. The rich set of protection features helps to realize low component counts, and high performance-to-cost power management.

We'll notify you when there are updates to this product. Sign Up
  • Features and BenefitsFeatures and Benefits
  • PackagingPackaging
  • Technical DocsTechnical Docs
  • NewsNews
  • Power supply voltages, VBB: 46 V(max), 10 to 44 V normal operating range
  • Maximum output currents: 1 A, 1.5 A, 2 A
  • Clock-in drive between 2 phase and 2 W 1-2 step (full to eighth step modes)
  • Built-in Detection Resistance feature for motor current detection
  • All STA7130MPR series variants are pin-compatible
  • ZIP type 18-pin molded package (STA package)
  • Self-excitation PWM current control with fixed off-time: automatic 3-level PWM off-time shifting, based on the
  • current setting ratio
  • Built-in synchronous rectification circuit reduces losses at
  • PWM switching
  • Synchronous PWM chopping function prevents motor noise in Hold mode
  • Sleep mode for reducing the IC input current in stand-by state
  • Built-in protection circuitry against opens/shorts in motor coil

There are no news items available for this product.

Click the image to view larger
Product Image Functional Block Diagram

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
STA7130MPR 18-lead ZIP -20°C to 80°C Yes View Data New Contact your
local sales rep
Check Stock
STA7131MPR 18-lead ZIP -20°C to 80°C Yes View Data New Contact your
local sales rep
Check Stock
STA7132MPR 18-lead ZIP -20°C to 80°C Yes View Data New Contact your
local sales rep
Check Stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.

Copyright © 2017 Allegro MicroSystems, LLC

Sitemap  |  Privacy Policy  |  Contact Webmaster

Follow us on: LinkedIn YouTube Google+ Follow Allegro on Twitter

Careers   |   Contact Sales   |   Home   |   Legal   |   Quality & Environment   |   Request Samples