LB1945H: PWM Current Control Type Stepping Motor Driver

The LB1945H is a PWM current control type stepping motor driver.

Features
  • PWM current control (external excitation)
  • Load current digital selection (1-2, W1-2 and 2-phase excitation drives possible)
  • Built-in upper and lower diode
  • Simultaneous ON prevention function (feed-through current prevention)
  • Built-in thermal shutdown circuit
  • Built-in noise canceller
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
PWM Current Control Type Stepping Motor DriverLB1945H/D (79.0kB)0
Package Drawings (1)
Document TitleDocument ID/SizeRevision
HSOP28H (375mil)943AB (60.1kB)A
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LB1945H-MPB-ELast ShipmentsPb-freeHSOP-28H943AB3Fan-Fold25
LB1945H-TLM-EActivePb-freeHSOP-28H943AB3Tape and Reel1000$2.1946
Specifications
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)
LB1945H-TLM-E10284.7560.81½ParallelExternal ResistorThermal
PWM Current Control Type Stepping Motor Driver (79.0kB) LB1945H
HSOP28H (375mil) LB1945H