UA9849 Description
The UTC UA9849 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.
UA9849 Key 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 pin
- ORDERING INFORMATION
- PIN DESCRIPTION
- FUNCTOIN Output Output Output GND Hall Signal Input Hall Signal Input Hall Signal Input Hall Signal Input Hall Signal In