Energy Efficient Innovations

Product Overview  


For complete documentation, see the data sheet.

Printed On: 7/11/2015

LV8111VB: 3-phase Brushless Motor Driver for a Polygon Mirror Motor

Product Description
The LV8111VB is a 3-phase brushless motor driver intended as a fully integrated driver for a laser beam printer (LBP) polygon mirror motor. This is a highly integrated solution which uses a DMOS output structure and employs synchronous rectification for low power consumption and a phase locked loop (PLL) speed control scheme to achieve extremely high rotational precision.
Features   Benefits
     
  • Direct PWM drive + synchronous rectification
 
  • Low consumption
  • PLL speed control circuit
 
  • High efficiency and Low jitter
  • Current limiter, constraint protection, thermal shutdown, under-voltage protection circuit
 
  • Safety design
  • 3-phase bipolar drive
   
  • IO max1 = 2.5A
   
  • IO max2 = 3.0A (t is within 0.1ms)
   
  • Output current control circuit
   
  • Phase lock detection output
    (with mask function)
   
  • Circuit to switch slowing down method while stopped
    (Free run or Short-circuit brake)
   
  • Constraint protection detection signal switching circuit (FG or LD)
   
Applications   End Products
  • Polygon Mirror Motor
 
  • Laser beam printer (LBP)
  • Plain paper copier (PPC)
  • Multi function printer (MFP)
Selected Electrical Specifications

Product Compliance Status Description Type VM Min (V) VM Max (V) VCC Min (V) VCC Max (V) IO Max (A) IO Peak Max (A) Step Resolution Control Type Feedback Method Current Sense Regulator Output Fault Detection Flyback Protection RDS(on) Typ (Ω) Package Type
 Pb-free 
 Halide free 
 Active     3-phase Brushless Motor Driver for a Polygon Mirror Motor   Brushless DC   10   37   10   37     3     Clock     External Resistor   Yes 
 Lock 
 Over-Current 
 Thermal 
 UVLO 
   1.5   SSOP-44K EP 
Package Availability
Type
PB free
Standard
SSOP-44K EP x