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Motor ICs

Dual Stepper Motor Driver

  • Dual chopper driver
  • 1000mA continuous output current per channel
  • Specially matched to the Dual DAC NJU39610
  • Packages (DIP22-D2/PLCC28-M2)
General Description
The NJM3774 is a switch-mode (chopper),constantcurrent driver with two channels: one for each winding of a two-phase stepper motor. The NJM3774 is equipped with a TTL level compatible Disable input to simplify half-stepping operation. The circuit is well suited for microstepping applications together with the matching dual DAC NJU39610. In full/half stepping applications,the NJM3517 can be used as a phase generator (translator) to derive the necessary signals for the NJM3774. The NJM3774 contains a clock oscillator,which is common for both driver channels,a set of comparators and flip-flops implementing the switching control,and two output H-bridges. Voltage supply requirements are +5 V for logic and +10 to +45 V for the motor. Maximum output current is 1000mA per channel.
Package Information
Part Number Package OutlinePinsMaterial Declaration (RoHS/Halogen)Terminal FinishWeight(mg) (Reference)Reflow solderingFlow solderingIron solderingPacking ConditionMSLSolder Foot Print
NJM3774D2 download
22 Pure Sn 2370 - Yes Yes Non dry pack - -
NJM3774FM2 download
28 Pure Sn 1200 Yes Yes Yes Non dry pack 1
Sample & Buy
Part NumberPackagesStatusPacking SpecificationSample
NJM3774D2 DIP22-D2 (Active)
NJM3774FM2 PLCC28-M2 (Active)