Datasheet Summary
..
UTC A9849
LINEAR INTEGRATED CIRCUIT
3-phase motor driver for CD-ROMs
DESCRIPTION
The UTC A9849 is ICs developed for CD-ROM spindle motor drives. These ICs possess a short brake and reverserotation brake for two types of brake functions, and also contain FG output and rotation direction detection (FR) circuits,making them high-functionality and high-performance ICs.
Features
- Three-phase, full-wave, pseudo-linear drive system.
- Built-in power save and thermal shutdown functions.
- Built-in current limiter and Hall bias circuits.
- Built-in FG output.
- Built-in rotation direction detector.
- Built-in reverse rotation prevention circuit.
- Built-in short brake...