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PDF TB6584AFNG Data sheet ( Hoja de datos )
| Número de pieza | TB6584AFNG | |
| Descripción | 3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic
TB6584AFNG
TB6584AFNG
3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller
The TB6584AFNG is designed for motor fan applications for
three-phase brushless DC motors.
Features
• Sine-wave PWM control
• Triangular-wave generator
(with a carrier frequency of fosc/252 Hz)
• Lead angle control (0° to 58° in 32 separate steps)
External setting or automatic internal control
• Current-limiting input pin
Weight: 0.17 g (typ.)
• Internal voltage regulator circuit (Vrefout = 5 V (typ.), 30 mA (max))
• Operating supply voltage range: VCC = 6 V to 16.5 V
© 2016 TOSHIBA Corporation
1
2016-02-22
1 page  
TB6584AFNG
Input/Output Equivalent Circuits
Equivalent circuit diagrams may be partially omitted or simplified for explanatory purposes.
Pin
Symbol
Input/Output Signal
Internal Circuit
Position signal input, U
Position signal input, V
Position signal input, W
HUP
HUM
HVP
HVM
HWP
HWM
Analog
Hysteresis: ±7.5 mV (typ.)
Vrefout Vrefout
Clockwise/counterclockwise
rotation
L: CW
H: CCW
Digital
CW/CCW
L: 0.8 V (max)
H: Vrefout − 1 V (min)
Vrefout Vrefout
2.0 kΩ
Reset input
L: Runs the motor.
H: Stops the motor. (Reset)
RES
Digital
L: 0.8 V (max)
H: Vrefout − 1 V (min)
Vrefout
2.0 kΩ
FG signal select input
H or OPEN: FG = 3 ppr
L: FG = 1 ppr
FGC
Digital
L: 0.8 V (max)
H: Vrefout − 1 V (min)
Vrefout Vrefout
100 Ω
Voltage command signal
1.0 V < Vsp ≤ 2.1 V
Refresh operation
(The X, Y and Z pins have a
conduction duty cycle of 8%.)
Lead angle control input
0 V: 0°
5 V: 58°
(5-bit AD)
Analog
Vsp voltage range: 0 to 10 V
Vsp When 5.7 V ≤ Vsp ≤ 7.3 V, the PWM
duty cycle is fixed at 92% (typ.).
When 8.2 V ≤ Vsp ≤ 10 V, the
TB6584AFNG is put in test mode.
To fix the lead angle externally, UL and
Vrefout should be connected together.
The lead angle is linearly determined
according to the voltage applied to the
LA input.
LA voltage range: 0 to 5.0 V (Vrefout)
LA If LA > Vrefout, the commutation occurs
with the maximum lead angle of 58°.
When configured for auto lead angle
control, the LA input should be left
OPEN. At this time, the LA input can
be used to check the lead angle in real
time.
100 Ω
VCC
100 Ω
From auto
lead angle
circuitry
5 2016-02-22
5 Page 
TB6584AFNG
3. Dead Time Insertion (cross conduction protection)
To prevent a short-circuit between external low-side and high-side power elements during sine-wave PWM
drive, a dead time is digitally inserted between the turn-on of one side and the turn-off of the other side.
(The dead time is also implemented at the full duty cycle during square-wave drive.)
TOFF = 9/fosc
TOFF ∼− 2.0 μs when fosc = 4.5 MHz, where fosc is the reference clock frequency
(i.e., CR oscillator frequency).
U
(V, W)
X
(Y Z)
TOFF
TOFF
4. Lead Angle Control
The lead angle can be adjusted between 0° and 58° in 32 separate steps according to the induced voltage
level on the LA input, which works with 0 to 5 V.
0 V = 0°
5 V = 58° (A lead angle of 58° is assumed when the LA voltage exceeds 5 V.)
Step
0
1
2
3
4
5
6
7
8
9
10
Sample evaluation
LA (V)
0.00
0.16
0.31
0.47
0.63
0.78
0.94
1.09
1.25
1.41
1.56
Lead angle Step
(° )
0.00
0.94
3.18
4.68
7.11
9.44
10.75
13.18
14.21
16.55
17.58
11
12
13
14
15
16
17
18
19
20
21
LA (V)
1.72
1.88
2.03
2.19
2.34
2.50
2.66
2.81
2.97
3.13
3.28
Lead angle Step
(° )
19.92
21.79
23.47
25.90
27.12
29.55
30.86
33.01
34.41
36.75
39.27
22
23
24
25
26
27
28
29
30
31
32
LA (V)
3.44
3.59
3.75
3.91
4.06
4.22
4.38
4.53
4.69
4.84
5.00
Lead angle
(° )
40.58
43.01
44.32
46.75
48.25
50.49
52.74
54.05
56.48
56.48
56.48
11 2016-02-22
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet TB6584AFNG.PDF ] | |
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