|
|
PDF BA6858AFM Data sheet ( Hoja de datos )
| Número de pieza | BA6858AFM | |
| Descripción | Three-phase motor driver for CD-ROMs | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de BA6858AFM (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
|
No Preview Available !
Motor driver ICs
Three-phase motor driver for
CD-ROMs
BA6858AFP / BA6858AFM / BA6859AFP /
BA6859AFP-Y / BA6859AFM / BA6859AFS
The BA6858A and BA6859A series are ICs developed for CD-ROM spindle motor drives. In addition to the functions
of the BA6849 series, (short brake, reverse-rotation prevention circuit, rotation direction dector, and FG output), the
BA6858A and BA6859A series have a built-in brake mode switching pin. With torque command input, these series are
compatible with the DSP3.3V. In addition, the BA6858A series has an FG composite output.
FApplications
CD-ROM, CD-R, CD-RW, DVD-ROM, and DVD-RAM
FFeatures
1) Three-phase, pseudo-linear drive system.
2) Built-in power save and thermal shutdown functions.
3) Built-in current limiter and Hall bias circuits.
4) Built-in FG output.
5) Built-in rotation direction detector.
6) Built-in reverse rotation prevention circuit.
7) Built-in short brake pin.
8) Built-in brake mode switching pin.
9) DSP3.3V compatible.
FAbsolute maximum ratings (Ta = 25_C)
848
1 page  
Motor driver ICs
BA6859AFS
BA6858AFP / BA6858AFM / BA6859AFP /
BA6859AFP-Y / BA6859AFM / BA6859AFS
852
5 Page 
Motor driver ICs
BA6858AFP / BA6858AFM / BA6859AFP /
BA6859AFP-Y / BA6859AFM / BA6859AFS
(2) Torque command
The RNF pin voltage with respect to the torque command (EC) is as follows:
(3) Reverse rotation detection function
The I / O gain (GEC) from the EC pin to the RNF pin (output
current) is determined by the RNF detector resistor.
GEC = 0.35 / RNF (A / V)
The torque limit current ITL is given by:
ITL = 0.35 / RNF (A)
The reverse detection circuit construction is shown in
Fig.13.
(1) Forward (EC < ECR)
The phase relationship between the Hall input signals
H2) and H3) becomes as shown in Fig.11, and the re-
verse rotation detection circuit does not operate.
(2) Reverse (EC > ECR)
The phase relationship between the signals H2) and
H3) is opposite that for forward operation, and the re-
verse rotation detection circuit operates. The output
goes OFF, and becomes open circuit.
858
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet BA6858AFM.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| BA6858AFM | Three-phase motor driver for CD-ROMs | ROHM Semiconductor |
| BA6858AFP | Three-phase motor driver for CD-ROMs | ROHM Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |