LB11867FV - Sanyo Semicon Device

LB11867FV Variable Speed Single-phase Full-wave Pre-driver

www.DataSheet.co.kr Ordering number : ENA0730B Monolithic Digital IC LB11867FV Overview For Fan Motor Variable Speed Single-phase Full-wave Pre-driver LB11867FV is a single-phase bipolar driving motor pre-driver with the variable speed function compatible with external PWM signal. With a few external parts, a highly-efficient and highly-silent variable.

Features

• Single-phase full-wave driving pre-driver ⇒ Low-saturation drive using external PMOS-NMOS enables high-efficiency low power-consumption drive.
• Variable speed control possible with external PWM input ⇒ Separately-excited upper direct PWM (f =30kHz) control method ensures highly silent speed control.
• Current limiting circuit incorporated ⇒ Chopper type current limiting made at startup and during lock.
• Reactive current cut circuit incorporated ⇒ Reactive current before phase changeover is cut, ensuring highly silent and low power-consumption drive.
• Minimum speed setting pin ⇒ Minimum s.