TB67B001FTG/TB67B001AFTG
TOSHIBA Bi-CD Integrated Circuit Silicon Monolithic
TB67B001FTG, TB67B001AFTG
3-Phase PWM Driver for Sensorless Brushless Motors
The TB67B001FTG, TB67B001AFTG is a three-phase PWM
chopper driver for sensorless brushless motors. It controls motor
rotation speed by changing the PWM duty cycle, based on the
speed control input.
The difference of both products is as follows;
Lock detection signal (LD_OUT),
TB67B001FTG: Normal state: High, Abnormal state: Low
TB67B001AFTG: Normal state: Low, Abnormal state: High
P-VQFN36-0505-0.50-001
Weight: 0.05 g (typ.)
Features
•
•
•
•
•
•
•
•
•
•
•
Sensorless drive in three-phase full-wave mode
PWM chopper control
Control based on the pulse duty input or analog voltage input
Output current: Absolute maximum rating: 3A
Power supply: Absolute maximum rating: 25 V
Adjustable output PMW duty
Lead angle control
Overlapping commutation (120°, 135°, and 150°)
Selectable soft switching
Rotation speed detecting signal (FG_OUT)
Lock detecting signal (LD_OUT)
TB67B001FTG: Normal state: High, Abnormal state: Low
TB67B001AFTG: Normal state: Low, Abnormal state: High
•
•
•
•
•
•
•
•
Adjustable startup settings
Forced commutation frequency control
Selectable PWM frequency
Restart
Overcurrent protection (ISD)
Thermal shutdown (TSD)
Undervoltage lockout (UVLO)
Current limiter
is selectable
©2014 TOSHIBA CORPORATION
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2015-9-11
TB67B001FTG/TB67B001AFTG
Pin Assignment
OSCCR
FPWM
VREG
ADJ3
ADJ2
ADJ1
20
27
LA
28
26
25
24
23
22
21
19
18 TSP/VSP
17 CW/CCW
16 SEL_SP
15 ROT
SEL_ ADJ 29
LAP
30
FST 31
TSTEP 32
TIP 33
TRE 34
GND 35
COM 36
1
U
2
U
3
RS
4
RS
5
V
6
V
7
W
8
W
9
TEST
E-PAD
ADJ0
14 SLOP
13 FG_OUT
12 LD_OUT
11 VM
10 VM
Note 1: Design the pattern in consideration of the heat design because the back side (E-PAD (3.4 mm × 3.4 mm)) and
the four corners of the PAD have the role of heat radiation. (The back side (E-PAD) and the four corners of the
PAD should be connected to GND because they are connected to the back of the chip electrically.)
Note 2: Because each U, V, W, RS, and VM has two pins, short out these two pins at the external pattern respectively.
GND
VST
2
2015-9-11
TB67B001FTG/TB67B001AFTG
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Symbol
U
U
RS
RS
V
V
W
W
TEST
VM
VM
LD_OUT
FG_OUT
SLOP
ROT
SEL_SP
CW/CCW
TSP/VSP
ADJ0
ADJ1
ADJ2
ADJ3
VREG
OSCCR
GND
VST
FPWM
LA
SEL_ADJ
LAP
FST
TSTEP
TIP
TRE
GND
COM
I/O
O
O
―
―
O
O
O
O
―
―
―
O
O
I
I
I
I
I
I
I
I
I
―
―
―
I
I
I
I
I
I
―
―
―
―
I
U-phase output
U-phase output
Connection pin for output current detecting resistance
Connection pin for output current detecting resistance
V-phase output
V-phase output
W-phase output
W-phase output
Test pin (Connect to GND pin)
Motor power supply pin
Motor power supply pin
Lock detecting signal output pin (open-drain)
Rotation speed output pin (open-drain)
Soft switching select input pin
Rotation speed of lead angle switching select pin
Select pin: Pulse duty control of TSP/VSP input or analog voltage select pin
Forward/Reverse rotation direction select input
Rotation speed command input (Pulse duty control and analog voltage control)
Characteristics adjustment of input duty
Characteristics adjustment input of PWM output duty 1
Characteristics adjustment input of PWM output duty 2
Characteristics adjustment input of PWM output duty 3
Reference voltage output
Internal OSC setting pin
Ground connection pin
Duty cycle setting pin for DC excitation and forced commutation modes
PWM frequency select input
Lead angle setting input
PWM duty function setting input
Overlapping commutation select pin
Forced commutation frequency select input
PWM duty increasing time setting pin
Connection pin for a capacitor to set the DC excitation time
Connection pin for a capacitor to set the restart time
Ground connection pin
Connection pin for the center tap of the motor
Description
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TB67B001FTG/TB67B001AFTG
Functional Description
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory
purposes.
Timing charts may be simplified for explanatory purposes.
1. Sensorless Drive Mode
Based on the analog voltage input for a startup operation, the rotor is aligned to a known position in DC
excitation mode. Then, the forced commutation signal is generated to start the motor rotation. As the motor
rotates, the back-EMF occurs in each phase of the coil. When an input signal indicating the polarity of three
phase voltage of the motor, including the back-EMF, is detected as a position signal, the motor driving
signal is automatically switched from forced commutation signal to the normal commutation PWM signal
that is based on the position signal input (back-EMF). Then, a BLDC motor starts running in sensorless
commutation mode.
1) Forward /Reverse rotation direction switching: CW/CCW pin
CW/CCW = Low: Forward direction, CW/CCW = High: Reverse direction
Do not switch the rotation direction during the motor operation to avoid stepping out. Switch the rotation
direction after the motor operation stops.
・CW/CCW
= Low (Forward)
U
V
W
FG_OUT
One electrical angle
・CW/CCW
= High (Reverse)
U
V
W
FG_OUT
One electrical angle
2) Output of rotation speed signal: FG_OUT pin
Signal of 1 ppr (one pulse/one electrical angle) is outputted according to the motor induced voltage.
(*4-polar motor: 2 pulses are outputted per 1 motor rotation.)
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TB67B001FTG/TB67B001AFTG
Absolute Maximum Ratings
(Note) (Ta = 25 °C)
Characteristics
Power supply voltage
Symbol
VM
V
IN1
(Note1)
Input voltage
V
IN2
(Note2)
V
IN3
(Note3)
Output voltage
V
OUT1
(Note4)
V
OUT2
(Note5)
I
OUT1
(Note6)
Output current
I
OUT2
(Note7)
I
OUT3
(Note8)
Power dissipation
Operating temperature
Storage temperature
P
D
T
opr
T
stg
Rating
25
−0.3
to 6.0
−0.3
to 25
−0.3
to VREG+0.3
25
25
3 (Note9)
10
5
2.8 (Note10)
−40
to 105
−55
to 150
Unit
V
V
V
V
V
V
A
mA
mA
W
°C
°C
Note: The absolute maximum ratings of a semiconductor device are a set of ratings that must not be exceeded, even
for a moment. Do not exceed any of these ratings.
Exceeding the rating (s) may cause the device breakdown, damage or deterioration, and may result injury by
explosion or combustion.
Please use the TB67B001FTG/AFTG within the specified operating ranges.
Note1: V
IN1
is applicable to the voltage at the following pins: TSP/VSP and CW/CCW
Note2: V
IN2
is applicable to the voltage at the COM pin.
Note3: V
IN3
is applicable to the voltage at the following pins:
SLOP,ROT,SEL_SP,ADJ0,ADJ1,ADJ2,ADJ3,OSCCR,VST,FPWM,LA,SEL_ADJ,LAP,FST,TSTEP,TIP, and TRE
Note4: V
OUT1
is applicable to the voltage at the following pins: U, V and W
Note5: V
OUT2
is applicable to the voltage at the following pins: FG_OUT and LD_OUT
Note6: I
OUT1
is applicable to the voltage at the following pins: U, V and W
Note7: I
OUT2
is applicable to the voltage at the following pins: FG_OUT and LD_OUT
Note8: I
OUT3
is applicable to the voltage at the VREG pin.
Note9: Output current may be limited by the ambient temperature or the device implementation.
The maximum junction temperature should not exceed T
jmax
= 150°C
Note10: When mounted on the board (4 layers: FR4: 76.2 mm x 114.3 mm x 1.6 mm)
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