TB6584AFNG(O,C8,EL Toshiba, TB6584AFNG(O,C8,EL Datasheet - Page 21

• Manufacturer Part Number: TB6584AFNG(O,C8,EL
• Description: Motor / Motion / Ignition Controllers & Drivers Brushless Motor DRVR 3-Phase 1A 45V
• Manufacturer: Toshiba
• Type: 3 Phase BLDC Motor Controllerr

Specifications of TB6584AFNG(O,C8,EL

• Rohs: yes
• Product: Brushless DC Motor Controllers
• Operating Supply Voltage: 16.5 V
• Supply Current: 2 mA
• Package / Case: SSOP-30

Square-Wave Drive Waveform
of the carrier period (T
enlarged view, the high-side outputs (U, V and W) are turned off for a dead time period while the low-side outputs
are on. (T
speed is determined by the duty cycle of T
To obtain an adequate bootstrap voltage, the low-side outputs (X, Y and Z) are always turned on for eight percent
In square-wave drive mode, the changing of the motor speed is enabled, depending on the V
Note: Square waveforms are used in the above diagram for the sake of simplicity.
Note: At startup, the motor is driven by a square wave when the Hall signal frequency is 5.7 Hz or lower (@ f
Carrier frequency = f
T
ONL
D
MHz) and when the motor is rotating in the direction reverse to the settings of the TB6584AFNG (REV = High).
varies with the V
= carrier_frequency × 8% (s) (Constant regardless of the V
Hall signal inputs
Output waveforms
ONL
H
H
H
W
) even during the off time of the low side in 120° commutation mode. As shown in the
W
U
X
V
Y
U
Z
V
osc
SP
/252 (Hz)
(Note)
input.)
W
Z
(CW/CCW = Low)
ONU
. (See the square-wave drive mode diagram on page 13.)
Dead time: T
T
21
ONU
Enlarged view
T
D
D
= 9/f
osc
SP
T
ONL
(s) (V
input)
T
D
SP
≥ 5.0 V, T
D
= Low)
SP
TB6584AFNG
voltage; the motor
2010-05-27
osc
= 4.5