LB1940T: 2-Channel H-Bridge Constant Current Driver

Description: The LB1940T and LB1940U are 2-phase exciter type b...
  • The LB1940T and LB1940U are 2-phase exciter type bipolar stepping motor driver ICs that feature low-voltage (supporting 3V battery) and low current operation with low saturation voltage. These ICs enable constant-current control of actuators and are optimal for driving the actuators of PC peripherals such as USB compatible scanners and printers. Other target applications include controlling the shutter, iris and AF of digital still cameras.
  • Features
  • Low voltage driving
  • Low saturation output
  • Constant current control
  • Built-in reference voltage
  • Applications
  • USB compatible scanners
  • Printers
  • Digital cameras
  • Technical Documentation & Design Resources
    Product Change Notification
    Availability and Samples
    LB1940T-MPB-E
  • Status: Last Shipments
  • Compliance: Pb-free 
  • Description: 2-Channel H-Bridge Constant Current Driver
  • Package Type: TSSOP-20
  • Package Case Outline: 948AX
  • MSL: 3
  • Container Type: FNFLD
  • Container Qty: 70
  • LB1940T-MPB-H
  • Status: Last Shipments
  • Compliance: Pb-free Halide free 
  • Description: 2-Channel H-Bridge Constant Current Driver
  • Package Type: TSSOP-20
  • Package Case Outline: 948AX
  • MSL: 3
  • Container Type: FNFLD
  • Container Qty: 70
  • LB1940T-TLM-H
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 2-Channel H-Bridge Constant Current Driver
  • Package Type: TSSOP-20
  • Package Case Outline: 948AX
  • MSL: 3
  • Container Type: REEL
  • Container Qty: 2000
  • Inventory

  • Market Leadtime (weeks):Contact Factory
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  • Digikey:>1K
  • Mouser:>1K
  • Specifications
  • VM Min (V): 1.6 
  • VM Max (V): 7.5 
  • VCC Min (V): 1.6 
  • VCC Max (V): 7.5 
  • IO Max (A): 0.4 
  • IO Peak Max (A):  
  • Step Resolution:
  • Control Type: Parallel 
  • Current Sense: External Resistor 
  • Fault Detection: Thermal 
  • Package Type: TSSOP-20 
  • ON Semiconductor Full Web Site