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PDF TB6631FNG Data sheet ( Hoja de datos )
| Número de pieza | TB6631FNG | |
| 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
TB6631FNG
3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller
TB6631FNG
The TB6631FNG 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)
Automatic internal control by FG frequency
Current-limiting input pin
Voltage regulator (Vrefout = 5 V (typ.), 30 mA (max))
Operating supply voltage range: VCC = 7 V to 16.5 V
Weight: 0.17 g (typ.)
© 2015 TOSHIBA Corporation
1
2015-10-08
1 page  
Input/Output Equivalent Circuits
Equivalent circuit diagrams may be partially omitted or simplified for explanatory purposes.
TB6631FNG
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
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 ADC)
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
TB6631FNG 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.
Upper limit for LA
If the voltage applied to the LA input
exceeds the upper limit set by this
UL input, it is clipped to limit the lead
angle.
UL = 0 to 5.0 V
100 Ω
VCC
100 Ω
From auto
lead angle
circuitry
VCC
100 Ω
5 2015-10-08
5 Page 
TB6631FNG
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 / output, 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
LA [V]
0.000
0.156
0.313
0.469
0.625
0.781
0.938
1.094
1.250
1.406
1.563
Lead angle Step
[deg]
0.000
1.875
3.750
5.625
7.500
9.375
11.250
13.125
15.000
16.875
18.750
11
12
13
14
15
16
17
18
19
20
21
LA [V]
1.719
1.875
2.031
2.188
2.344
2.500
2.656
2.813
2.969
3.125
3.281
Lead angle Step
[deg]
20.625
22.500
24.375
26.250
28.125
30.000
31.875
33.750
35.625
37.500
39.375
22
23
24
25
26
27
28
29
30
31
32
(Value is design target)
LA [V]
Lead angle
[deg]
3.438
3.594
3.750
3.906
4.063
4.219
4.375
4.531
4.688
4.844
5.000
41.250
43.125
45.000
46.875
48.750
50.625
52.500
54.375
56.250
58.125
58.125
11 2015-10-08
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet TB6631FNG.PDF ] | |
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