Ordering number : EN4476B
Monolithic Digital IC
LB1854M
Three-Phase Brushless Motor Driver IC
Overview
The LB1854M is a three-phase brushless motor driver IC and is optimal, in particular, for driving VCR capstan and drum motors.
Package Dimensions
unit: mm 3073A-MFP30S
[LB1854M]
Features
• 120°
voltage linear drive technique • The LB1854M soft switching scheme allows smaller external
capacitors to be used (e.
g.
, chip
capacitors).
• Built-in thermal-shutdown function • Built-in overcurrent protection circuit • Built-in FG
amplifiers (operational amplifier and Schmitt amplifier) • Control start
voltage set by an external
voltage • The output current feedback level can be changed by chang...