LB1876 Description
EN6201B LB1876 Monolithic Digital IC For Polygon Mirror Motors 3-phase Brushless Motor Driver http://onsemi. Overview The LB1876 is a driver for polygon mirror motors such as used in laser printers and similar equipment. It incorporates all necessary circuitry (speed control + driver) on a single chip.
LB1876 Key Features
- 3-phase bipolar drive
- Direct PWM drive technique
- Built-in lower side output diode
- Output current limiter
- Reference clock input circuit (FG frequency equivalent)
- PLL speed control circuit
- Phase lock detector output (with masking function)
- Built-in protection circuitry includes current limiter, restraint protection, overheat protection, low-voltage protectio
- Brake method switching circuit (free-run or reverse torque)
- 5V regulator output