LB11847: PWM Current Control Type Stepping Motor Driver

The LB11847 is a driver IC for stepping motors with PWM curent control bipolar drive (fixed OFF time). A special feature of this IC is that the VREF voltage is constant while the current can be set in 15 steps, allowing drive of motors ranging from 1-2 phase exciter types to 4W 1-2 phase exciter types. The current decay pattern can also be selected (SLOW DECAY, FAST DECAY, MIX DECAY) to increase the decay of regenerative current at chopping OFF, thereby improving response characteristics. This is especially useful for carriage and paper feed stepping motors in printers and similar applications where high precision control and low vibrations are required.

特性
  • PWM current control (fixed OFF time)
  • Load current digital selector
  • Selectable current decay
  • Simultaneous ON prevention function
  • Noise canceller
  • Built-in thermal shutdown circuit
  • Built-in logic low-voltage OFF circuit
应用
  • Printers
数据表 (1)
Document TitleDocument ID/SizeRevisionRevision Date
PWM Current Control Type Stepping Motor DriverLB11847/D (145.0kB)0
封装图纸 (1)
Document TitleDocument ID/SizeRevision
PDIP30 / DIP30SD (400 mil)646AZ (58.5kB)A
产品订购型号
产品状况Compliance封装MSL*容器预算价格 (1千个数量的单价)
LB11847-EActivePb-freePDIP-30646AZNAFan-Fold20$2.4431
订购产品技术参数
ProductVM Min (V)VM Max (V)VCC Min (V)VCC Max (V)IO Max (A)IO Peak Max (A)Step ResolutionControl TypeFeedback MethodCurrent SenseRegulator OutputFault DetectionFlyback ProtectionRDS(on) Typ (Ω)
LB11847-E10454.7571.51.751/16ParallelExternal ResistorThermal
PWM Current Control Type Stepping Motor Driver (145.0kB) LB11847
PDIP30 / DIP30SD (400 mil) LB1945D