TB6586FG Toshiba, TB6586FG Datasheet - Page 10

• Manufacturer Part Number: TB6586FG
• Manufacturer: Toshiba

Specifications of TB6586FG

• Function: Controller
• Vopmax (vm*): 10V (18V)
• Io (lpeak): 2mA
• Sinusoidal Current Wave: 150 degree drive
• Sensor-less: no
• Speed Feedback Loop: no
• Package: SSOP24
• Rohs Compatible†: yes

4. Correcting the lead angle
Steps
Sample Evaluation Results
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
(2)
The lead angle can be corrected in the turn-on signal range from 0 to 28° in relation to the induced voltage.
Analog input from the LA pin (0 V to 4.3 V divided by 16):
Example Output Waveform
0 V = 0°
4.3 V or higher = 28°
If the V
WH) will perform 120° energization at a PWM that complies with the V
VL, WL) will operate at 120° energization, performing refresh operation based on the OFF timing.
(The same drive is executed during “headwind” operation as well.)
T
*: The lead angle correction (LA pin) function does not operate when the Hall signal is 5 Hz or less. The
LA (V)
WH
WL
0.00
0.05
0.28
0.59
0.89
1.21
1.52
1.83
2.14
2.45
2.75
3.06
3.37
3.68
3.99
4.30
UH
VH
UL
VL
SP
18/f
lead angle correction function also does not operate when in a reverse detection state.
: Variable depending on the V
osc
SP
WH
WL
Angle (°)
11.29
13.15
15.08
16.87
18.73
20.66
22.55
24.37
26.16
28.09
; Td = 18/f
Lead
0.00
1.93
3.79
5.65
7.54
9.43
input current is 2.1 V < V
osc
30
25
20
15
10
5
0
0.0
T
SP
SP
0.5
Magnified view
SP
(the figure above being applicable when V
and the Hall signal is 5 Hz or less, the upper phase (UH, VH,
T
d
1.0
10
LA (V) − Lead Angle (°) Characteristic
T
1.5
on
T
d
2.0
LA (V)
2.5
3.0
SP
; and the lower phase (UL,
3.5
TB6586FG/AFG
SP
= 5.4 V (typ.)); T
4.0
2007-08-03
4.5
5.0
on =