LB1868M: Two-Phase Brushless Fan Motor Driver

Description: The LB1868M is a 2-phase unipolar brushless motor ...
  • The LB1868M is a 2-phase unipolar brushless motor driver. With only a few peripheral parts, lockup protection and automatic recovery can be implemented. The IC can be configured for 12V or 24V operation and a wide range of variations, from Low speed to H-High speed and from 60cm to 120cm square using the same PCB. This makes it easy to design highly reliable fan motor installations.
  • Features
  • Output protection Zener diode with variable withstand voltage
    Z1, Z2 pins open: VOLM = 57V (24V specification)
    Z1, Z2 pins shorted: VOLM = 32V (12V specification)
    External Zener diode connected across Z1-VCC pins: support for fans with large drive current
  • External resistor allows configuration for 12V or 24V
  • Direct Hall element connection possible (built-in Hall amplifier with hysteresis supports core without auxiliary electrode)
  • Built-in output transistor with 1.0A output current (strengthened negative-current support for core without auxiliary electrode)
  • Built-in rotation detection function: Low during rotation and High during stop
  • Built-in lockup protection with automatic recovery
  • ST pin for motor stop/drive (for standby mode of copiers etc.)
  • BC pin for kickback noise reduction (with 2 external capacitors)
  • FG output pin for rotation detection
  • Built-in thermal shutdown
  • Technical Documentation & Design Resources
    Product Change Notification
    Availability and Samples
    LB1868M-MPB-H
  • Status: Obsolete
  • Compliance: Pb-free Halide free 
  • Description: Two-Phase Brushless Fan Motor Driver
  • Package Type: SOIC-14W / MFP-14S
  • Package Case Outline: 751CB
  • MSL: 3
  • Container Type: FNFLD
  • Container Qty: 60
  • LB1868M-TLM-E
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Two-Phase Brushless Fan Motor Driver
  • Package Type: SOIC-14W / MFP-14S
  • Package Case Outline: 751CB
  • MSL: 3
  • Container Type: REEL
  • Container Qty: 1000
  • LB1868M-TLM-H
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Two-Phase Brushless Fan Motor Driver
  • Package Type: SOIC-14W / MFP-14S
  • Package Case Outline: 751CB
  • MSL: 3
  • Container Type: REEL
  • Container Qty: 1000
  • LB1868M-W-AH
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Two-Phase Brushless Fan Motor Driver
  • Package Type: SOIC-14W / MFP-14S
  • Package Case Outline: 751CB
  • MSL: 3
  • Container Type: REEL
  • Container Qty: 1000
  • Specifications
  • Phase:
  • VM Min (V):  
  • VM Max (V): 60 
  • VCC Min (V): 6.4 
  • VCC Max (V):
  • IO Max (A):
  • IO Peak Max (A):  
  • Control Type: Parallel 
  • Package Type: SOIC-14W / MFP-14S 
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