Design Specifications
Preliminary
TOSHIBA Bi-CMOS IC
Silicon Monolithic
TB6582FG
TB6582FG
PWM Type, Sine-Wave Current, and Sensorless 3-Phase Full-Wave Brushless Motor
Controller
The TB6582FG is designed for controlling the three-phase
brushless DC fan motor.
Features
•
•
•
•
•
Sine-wave PWM control
Built-in triangular-wave generator
(carrier cycle
=
f
osc
/252 (Hz))
Built-in dead time function (1.8
µs)
Built-in regulator (V
refout
=
5 V (typ.), 5 mA (max))
Operating supply voltage range: V
CC
=
6.5 to 16.5 V
Weight: 0.45 g (typ.)
The TB6582FG is RoHS-compliant.
About solderability, following conditions were confirmed
•
Solderability
(1) Use of Sn-37Pb solder Bath
· solder bath temperature
=
230°C
· dipping time
=
5 seconds
· the number of times
=
once
· use of R-type flux
(2) Use of Sn-3.0Ag-0.5Cu solder Bath
· solder bath temperature
=
245°C
· dipping time
=
5 seconds
· the number of times
=
once
· use of R-type flux
1
2007-10-18
Design Specifications
Block Diagram
V
refout
TB6582FG
V
LA
3
C
LA
46
I
U
I
V
I
W
A-GND
I
UO
I
VO
I
WO
V
I
cut refout
V
refout
Iduty
C
U
I
Uin
C
V
I
Vin
C
W
I
Win
C
2
V
UI
V
UO
V
VI
V
VO
V
WI
V
WO
V
U
V
V
V
W
V
COM
R
8
C
3
R
8
C
3
R
8
C
3
R
9
C
4
R
9
C
4
R
9
C
4
C
2
C
2
R
3
R
7
R
7
R
7
R
2
R
5
C
1
R
6
C
1
R
6
C
1
R
6
R
1
R
1
R
1
R
4
IPD
0.1
µF
V
CC
=
15 V
V
CC
1
µF
10
5-V regulator
V
refout
OSC/C
390 pF
6.8 kΩ
OSC/R
Lead angle control
Phase
current/induced
voltage
S/H phase
current
amplifier
×(−3)
2
Phase
current
detector
50
45
5
1
49
V
M
=
50 to 400 V
Motor
R
4
R
4
R
5
R
5
Preliminary
8
31
30
Internal reference
voltage (5 V)
System clock
generator
Operating mode select
•
Output off
•
Startup control
•
Sine-wave control
6-bit triangular
wave generator
Sys. RES 14
EP
20
CW/CCW 19
FGC 15
FG
MCU
V
refout
REV
V
BRK
V
SP
0.47
µF
SC
22
23
4
7
6
Regenerative
protection
Rotational
frequency/
direction detect
Amplitude
detector
44
11
9
51
Induced
voltage
detector
(for sine
wave)
52
47
48
42
43
41
Operating
mode control
Duty
control
EU
Position
indicator
(multiply
circuit)
2-phase
modulated
output
waveform
generator
EV
EW
1-phase
multiply circuit
Test
oscillator
circuit
Filter
circuit
40
39
38
37
UH
UL
VH
VL
WH
WL
29
26
28
Turn-on signal
output
36
25
27
24
Startup control
(DC excitation, forced
commutation,
sensorless square-wave)
Induced
voltage
detector
(for
startup)
16
FRCDRV
35
34
33
32
TEST 18
D-GND 21
IP 12
1
µF
220 kΩ
13
START
17 F
ST
2
2007-10-18
Design Specifications
External Parts
Symbol
OSC/C
OSC/R
C
SC
R
ST
C
IP
C
REF
C
VCC
R
1
R
2
R
3
R
4
R
5
R
6
R
7
C
1
C
2
R
8
R
9
C
3
C
4
C
LA
Lead angle adjustment
Two-stage low-pass filter
0.015 pF
0.0039
µF
(0.022
µF)
(Note 9)
Motor constant setting
Induced voltage detection
2 kΩ
360 kΩ
11 kΩ
0.012
µF
0.15
µF
91 kΩ
91 kΩ
(Note 8)
(Note 7)
V
refout
oscillation prevention
V
CC
power supply stabilization
Phase current detection
Motor reference detection
1 kΩ
200 kΩ
(Note 6)
DC excitation setting
Function
Reference clock generation
(5 MHz)
Recommended Value
390 pF
6.8 kΩ
3.3
µF
(0.47 to 4.7
µF)
220 kΩ
4.7
µF
(0.1
µF)
25 V/1
µF
0.33
Ω
201 kΩ
(Note 5)
(Note 3)
(Note 4)
(Note 2)
Remarks
(Note 1)
TB6582FG
Preliminary
Note 1: These values determine the internal IC reference clock. Recommended values are required to be used for
external capacitor and resister in setting the carrier frequency at 20 KHz.
Note 2: These are used to determine the DC excitation time and duty cycle at startup. Since those required time and
duty cycle vary depending on the motor type, appropiate values must be determined through experiments.
Since the motor is driven by a minimum current, these must be connected as close as possible to the IC
lead.
Note 3: These capacitors are used for power supply stabilization. Appropriate values must be determined depending
on usage environment. These capacitors must also be connected as close as possible to the IC lead to
enhance noise rejection.
Note 4: The voltage generated at the phase current detection resistor R
1
must be below 0.5 V.
Note 5: R
2
and R
3
should be adjusted so that the voltages generated at those resistors become half the voltages
generated at the induced voltage detection resistors, R
4
and R
5
, respectively. Since these voltages are also
used for V
M
-power supply monitoring, ensure that V
CC
does not exceed the operating power-supply voltage
range. For a detailed functional description, refer to the functional description in Section 16,
V
CC
-Power
Supply Monitoring.
Note 6: These resistors are used for the induced voltage detection in square-wave mode. Also, these resistors are
used for the detection of the voltage applied to the motor in sine-wave mode. R
4
and R
5
should be adjusted
so that the voltage applied to the TB6582FG becomes 4.5 V or lower.
Note 7: The time constant varies depending on the inductance and resistance of each motor. Thus, attach the motor
to the TB6582 and adjust the time constant experimentally. For more details, refer to the functional
description in Section 7,
Induced Voltage Detection.
Note 8: The PWM signals generated from the output pins must be low-pass filtered to obtain linear voltages.
Note 9: This capacitor is used to specify the lead angle in sine-wave mode. For the automatic lead-angle correction,
the appropriate C
LA
should be used so that the U-phase current is delayed by the amount of time obtained
based on the calculated induced voltage. For more details, refer to the functional description in Section 8,
Lead Angle Correction.
3
2007-10-18
Pin Description
Pin No.
10
8
31
30
14
Symbol
V
CC
V
refout
OSC/C
OSC/R
Sys. RES
I/O
O
I
Design Specifications
Preliminary
Description
Power supply voltage pin
V
CC
=
6.5 V to 16.5 V
TB6582FG
Internal reference voltage pin 5 V (typ.)/5 mA (max)
Connected to a capacitor of 0.1
µF
for power supply stabilization
Reference clock setting pin
Reference clock setting pin
Connected to a capacitor
Connected to a resistor
(Test pin) Reset signal input for all the logic (This pin has a pull-down resistor of 100 kΩ typ.)
High
: Motor operation
Low
: Reset
*:
This pin is held at High under actual operation.
Driving output control pin. Activated to reset when any faults is detected.
(This pin has a pull-down resistor of 100 kΩ
(typ.))
High: Motor operation Low: Motor stop (Free run)
*)
Rotation speed signal (FG) pin is always active regardless of the EP input
Forward/Reverse rotation select pin (This pin has a pull-down resistor of 100 kΩ typ.)
High
: Reverse
Low
: Forward
FG output select pin (This pin has a pull-down resistor of 100 kΩ typ.)
High
:1 ppr
Low
: 3 ppr
(Square-wave mode when FGC = 2.5 V (typ.), FG = 3 ppr)
Rotation speed detect signal output
Selectable between 3 ppr and 1 ppr with the FGC pin.
Reverse rotation output pin
(Generates the calculated U-phase induced voltage when FGC = 2.5 V typ.)
Torque command for the reverse rotation brake control
VBRK input voltage range: 1.5 V
<
VBRK
≤
2.5 V
Duty cycle = 52% when VBRK = 1.5 V
Motor speed control input (This pin has a pull-down resistor of 200 kΩ typ.)
0
≤
V
SP
≤ <
2.1 V (typ.): Output Off (all phases: Low)
2.1 V (typ.)
≤
V
SP
≤
5.4 V (typ.): Set the PWM duty cycle according to the speed control input.
Connection pin for a capacitor to set a ramp-up period during duty-cycle operation in DC
excitation mode
Upper arm driving signal output
Lower arm driving signal output
Upper arm driving signal output
Lower arm driving signal output
Upper arm driving signal output
Lower arm driving signal output
±2
mAmax
±2
mAmax
±2
mAmax
±2
mAmax
±2
mAmax
±2
mAmax
20
EP
I
19
CW/CCW
I
15
FGC
I
22
23
FG
REV
O
O
4
V
BRK
I
7
V
SP
I
6
29
26
28
25
27
24
18
21
12
13
SC
UH
UL
VH
VL
WH
WL
TEST
D-GND
IP
START
I
O
O
O
O
O
O
I
I
O
Test pin for the shipping inspection. (This pin has a pull-down resistor of 100 kΩ typ.)
*:
This pin is left Open or held at Low during actual operation of the motor.
Ground pin for digital circuits
DC excitation time setting pin
When V
SP
≥
2.1 V (typ.), the START pin goes low to start DC excitation.
When the IP pin voltage reaches 0.5 V, operating mode is switched from DC excitation to forced
commutation.
Forced commutation frequency select pin (This pin has a pull-down resistor of 100 kΩ typ.)
17
High
: Forced commutation frequency f
ST
=
f
osc
/(6
×
2 )
18
Middle
: Forced commutation frequency f
ST
=
f
osc
/(6
×
2 )
19
Low
: Forced commutation frequency f
ST
=
f
osc
/(6
×
2 )
(Test pin) Motor constant setting pin for induced voltage detection circuit
(This pin has pull-up/down resistors of 100 kΩ typ.
*2)
High
: Low-speed oscillation (0.5 Hz)
Middle or OPEN : Motor operation
Low
: High-speed oscillation (30 Hz)
*:
The CW/CCW pin must be set Low while changing the setting of this pin.
*:
This pin is left Open during actual operation of the motor.
Voltage supply for the V
M
voltage level shift, The voltage applied to this pin should be half the
input voltage at the induced voltage detection inputs (VU, VV and VW).
17
F
ST
I
16
FRCDRV
I
32
V
COM
I
4
2007-10-18
Design Specifications
Pin No.
33
34
35
36
37
38
39
40
41
43
42
48
47
52
51
9
11
44
49
1
5
45
50
2
46
3
Symbol
V
W
V
V
V
U
V
WO
V
WI
V
VO
V
VI
V
UO
V
UI
I
Win
C
W
I
Vin
C
V
I
Uin
C
U
Iduty
I
cut
I
WO
I
VO
I
UO
A-GND
I
W
I
V
I
U
C
LA
V
LA
I/O
I
I
I
O
I
O
I
O
I
I
I
I
I
I
O
O
O
I
I
I
I
Induced voltage detection input
Induced voltage detection input
Induced voltage detection input
Induced voltage detection filter pin
Induced voltage detection filter pin
Induced voltage detection filter pin
Induced voltage detection filter pin
Induced voltage detection filter pin
Induced voltage detection filter pin
Detected phase current signal input
Phase current detection pin (A capacitor is connected to this pin.)
Detected phase current signal input
Phase current detection pin (A capacitor is connected to this pin.)
Detected phase current signal input
Phase current detection pin (A capacitor is connected to this pin.)
Current limiting signal input pin
(Limit the phase current so as not to exceed the set current value.)
Current-off signal input (Set the output off)
Detected phase current signal output
Detected phase current signal output
Detected phase current signal output
Description
TB6582FG
Preliminary
Ground pin for analog circuits. This pin should be connected as close as possible to the
grounded side of the shunt resistor R1.
Voltage signal input converted from a shunt current signal
Voltage signal input converted from a shunt current signal
Voltage signal input converted from a shunt current signal
Lead angle setting pin (A delay capacitor is connected to this pin.)
Reference lead-angle correction pin (Electrical angle of 112.5° is programmable for 16 steps
(using 4 bits) at the 112.5/16 resolution.)
(This pin has a pull-down resistor of 200 kΩ typ.)
5
2007-10-18
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