TB6575FNG Toshiba, TB6575FNG Datasheet - Page 3

• Manufacturer Part Number: TB6575FNG
• Manufacturer: Toshiba

Specifications of TB6575FNG

• Function: Controller
• Vopmax (vm*): 5.0V (5.5V)
• Io (lpeak): 20mA
• Sinusoidal Current Wave: no
• Sensor-less: yes
• Speed Feedback Loop: no
• Package: SSOP24
• Rohs Compatible†: yes

Pin Description
Pin No.
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
CW_CCW
OUT_WN
SEL_LAP
OUT_WP
FG_OUT
OUT_UP
OUT_UN
OUT_VN
OUT_VP
Symbol
START
F
X
GND
Duty
V
X
SC
OS
MAX
LA
Tout
IP
Tin
SP
I/O
⎯
⎯
⎯
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
Ground pin
Connection pin for a capacitor to set a startup commutation time and duty cycle ramp-up
time
Select the polarity of transistors.
Set an upper limit of the maximum commutation frequency.
<Fst=Low>
<Fst=High or Middle>
Duty cycle control input
Rotation direction input
Rotation speed sensing output
DC excitation time setting pins
Connection pins for a ceramic oscillator
These pins have a feedback resistor.
Lead angle control input
PWM output signal for the high-side (positive-side) transistor driving motor phase U
PWM output signal for the low-side (negative-side) transistor driving motor phase U
PWM output signal for the high-side (positive-side) transistor driving motor phase V
PWM output signal for the low-side (negative-side) transistor driving motor phase V
PWM output signal for the high-side (positive-side) transistor driving motor phase W
PWM output signal for the low-side (negative-side) transistor driving motor phase W
PWM output monitor pin
Overlap commutation select pin
High or open: High-side transistor = P-channel (active low)
Low:
The pin has a pull-up resistor.
0 ≤ V
V
V
The pin has a pull-down resistor.
High:
Low or open: Forward rotation (U → V → W)
The pin has a pull-down resistor.
The pin is low at startup or upon a detection of a fault. This pin drives three pulses per
rotation (3 ppr) based on the back-EMF (electromotive force) sensing. (In the case of 4
pole motor, 6 pulse output per rotation.)
When V
After the IP pin reaches V
commutation mode.
LA = Low or open: Lead angle of 7.5°
LA = high:
The pin has a pull-down resistor.
The PWM polarity can be specified by pin 3.
This signal is active high.
The PWM polarity can be specified by pin 3.
This signal is active high.
The PWM polarity can be specified by pin 3.
This signal is active high.
This pin drives PWM output whose duty cycle corresponds to the V
reflects the information at the OC pin.
Low: Overlap commutation
The pin has a pull-up resistor.
F
F
F
F
The pin has a pull-up resistor.
AD
AD
MAX
MAX
MAX
MAX
(L) ≤ V
(H) ≤ V
SP
=High or Open , Maximum commutation frequency f
=Low , Maximum commutation frequency f
=High or Open , Maximum commutation frequency f
=Low , Maximum commutation frequency f
SP
≤ V
≥ 1 V (typ.), the START pin goes low to start DC excitation.
SP
AD
SP
Low-side transistor = N-channel (active High)
High-side transistor = N-channel (active High)
Low-side transistor = N-channel (active High)
≤ V
Reverse rotation (U → W → V)
(L): Output off
≤ V
AD
DD
Lead angle of 15°
: Duty cycle = 100% (31/32)
3
(H): Set the PWM duty cycle according to the analog input.
DD
/2, the TB6575FNG moves from DC excitation to forced
High, Open: 120° commutation
Description
MX
MX
= f
= f
XT
XT
/(6 × 2
/(6 × 2
MX
MX
= f
= f
12
9
)
)
XT
XT
SP
TB6575FNG
/ (6×2
/ (6×2
input. It also
2008-9-11
11
8
)
)