onsemi LB11870
The LB11870 is a three-phase brushless motor driver developed for driving the motors used with the polygonal mirror in laser printers and plain paper copiers. It can implement, with a single IC chip, all the circuits required for polygonal mirror drive, including speed control and driver functions. The LB11870 can implement motor drive with minimal power loss due to its use of direct PWM drive.ABSOLUTE MAXIMUM RATINGS
at Ta = 25°C Parameter Supply voltage Output current Allowable power dissipation 1 Symbol VCC max IO max Pd max1 Conditions T ≤ 500ms *1 Independent IC Allowable power dissipation 2 Operating temperature Storage temperature Pd max2 Topr Tstg Mounted on a circuit board *2 Note *1: Be sure to perform derating from the standard value by 20% or more before use. Note *2: Mounted on a specified board: 114.3mm×76.1mm×1.6mm, glass epoxy Ratings 30 2.3 0.85 1.72 -20 to +80 -55 to +150 Unit V A W W °C °C Stresses exceedingMAXIMUM RATINGS
may damage the device.MAXIMUM RATINGS
are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Allowable Operating Ranges at Ta = 25°C Parameter Supply voltage range 5V constant voltage output current LD pin applied voltage LD pin output current FGS pin applied voltage FGS pin output cu...