MC34931/S H-Bridge, Brushed DC Motor Driver, 5-36 V, 5 A, 11 kHz/20 kHz

Roll over image to zoom in

Block Diagram


NXP<sup>&#174;</sup> MC34931 Internal Block Diagram


Key Features

  • Thermal efficiency: eSOIC package delivers 2X lower thermal impedance, saving board space and simplifying design
  • Automatic thermal back-off: Temperature regulated, peak current limiting ensures continuous high availability operation
  • Real-time load current monitoring: Analog feedback current mirror feature used for motor control or load protection
  • Design-in simplicity: Integrated H-Bridge with charge pump, control, protection and four MOSFETs
  • High efficiency: 120 mΩ typical RDS(ON)
  • Load supply voltage 5 V to 36 V continuous operation, 42 V transient
  • Operation up to 5 A covering a wide range of applications.
  • 3 & 5 V TTL/CMOS compatible
  • Status flag output reports under-voltage, over-current, and over-temperature fault conditions
  • Output short-circuit protection (short to VPWR or GND)
  • Sleep mode with current draw < 20 μA
  • Parallel interface and input control
  • Ambient operating temperature -40 °C (Min), 85 °C (Max)

Product Longevity Program

  • This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The MC34931 is included in the 10-year program

Part numbers include: MC34931EK, MC34931SEK.


Quick reference to our documentation types.

5 documents

Design Resources


3 hardware offerings


2 software files

Note: For better experience, software downloads are recommended on desktop.