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PDF FAN8486D Data sheet ( Hoja de datos )
| Número de pieza | FAN8486D | |
| Descripción | 2-Phase BLDC Motor Driver | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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FAN8486D (KA3086D)
2-Phase BLDC Motor Driver
www.fairchildsemi.com
Features
• Drives the BLDC motor using 2 hall sensors.
• 2-phase, full-wave drive method
• Built-in thermal shutdown (TSD) circuit
• Controls the motor speed through voltage
• Built-in bandgap circuit
• Built-in frequency Generator (FG) & Phase Generator
(PG) amplifier & comparator.
Descripiton
The FAN8486D is a monolithic integrated circuit, and it is
suitable for drum motor driver of VCR system.
28-SSOP-300SG
Typical Applications
• Video cassette recorder (VCR) cylinder (drum) motor
• Other 2-phase BLDC motor
Ordering Information
Device
Package
FAN8486D 28-SSOP-300SG
FAN8486DTF 28-SSOP-300SG
Operating Temp.
−25°C ~ +75°C
−25°C ~ +75°C
©2000 Fairchild Semiconductor International
Rev. 1.0.1
February. 2000.
1 page  
Equivalent Circuits
Description
VCTL
Pin No.
27
Internal circuit
VREG
FAN8486D (KA3086D)
50
27
1k
ICTL
Motor output
5,7,8,10
VCC
57
8 10
Hall input
14,15,16,17
VREG
Vcc
50
14
16
500
ICTL
500 50
15
17
Rev. 1.0.1
February. 2000.
5
5 Page 
ICTL
IO
AT
FAN8486D (KA3086D)
Figure 2.
IO
IOmax
AT
ICOmax
ICTL
Figure 3.
3. Voltage Control
Even though FAN8486D command uses Ic to control the magnitude of IO, it can also use voltage. FAN8486D mainly uses
voltage control and has option to use current control.
VCTL
V/I
Converter
ICTL
IO
AT
Figure 4 shows the principle of the voltage control.
Figure 4.
The VCTL is the motor speed control voltage, and the ICTL is converted to current through the V / I converter.
Figure 5 shows the graph of VCTL vs. IO.
IO
IOmax
AT
GM
0.48 × VREG (TYP)
VCTL
Figure 5.
Rev. 1.0.1
February. 2000.
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet FAN8486D.PDF ] | |
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