LB11850VA Overview
ENA0609A Monolithic Digital IC LB11850VA .. For Fan Motor Single-Phase Full-Wave Pre-Driver with Speed Control Function Overview The LB11850VA is a single-phase bipolar fan motor driver with speed control function that works with a speed feedback signal. A highly efficient, quiet and low power consumption motor driver circuit, with a high speed accuracy and large variable speed can be implemented by adding a small...
LB11850VA Key Features
- Pre-driver for single-phase full-wave drive →PMOS-NMOS is used as an external power TR, enabling high-efficiency and low
- On-chip speed control circuit →The speed control (closed loop control) using a speed feedback signal makes it possible t
- External PWM input or analog voltage input enabling variable speed control →The speed control input signal is patible wi
- On-chip soft start circuit
- Lowest speed setting pin →The lowest speed can be set with the external resistor
- Current limiter circuit incorporated →Chopper type current limit at start or lock
- Reactive current cut circuit incorporated →Reactive current before phase change is cut to enable silent and low-consumpt
- Constraint protection and automatic reset functions incorporated
- FG (speed detection), RD (lock detection) output
- Constant-voltage output pin for hall bias