Full-bridge motor driver IC

  • 21-Sep-2009 03:13 EDT
SPF7302_TextLogo_300RGB.jpg

The SPF7302 from Allegro MicroSystems is a fully protected, single chip full-bridge motor driver IC (integrated circuit) for dc brush motor applications. This solution is said to enhance system reliability compared to other discrete solutions. Suitable for use in the automotive industry, Allegro’s IC includes various integrated protection circuits. There is an externally adjustable delay timer to halt the overcurrent limitation (OCL) for proper motor start-up. Open load detections are also present at start-up to ensure steady operation of the device. The package is a thermally enhanced 16-pin power package with an exposed thermal pad on the bottom side of the package. Other features of the device include overvoltage protection; overcurrent protection with latch, which is adapted to the MOSFETs in each full bridge; undervoltage lockout; and OCL.

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