TA7259F TOSHIBA [Toshiba Semiconductor], TA7259F Datasheet - Page 10

• Manufacturer Part Number: TA7259F
• Description: 3-PHASE BRUSHLESS DC MOTOR DRIVER IC
• Manufacturer: TOSHIBA [Toshiba Semiconductor]

ⅱ) The drive current path of the position sensing device should be connected to the GND independently.
ⅲ) If upper oscillation (5MHz or more) is found, connect the condensers commonly from each coil output
ⅳ) Make sure to take the power supply from V
It should be separated especially from the output current path.
If there is a plunge in position sensing device, insert the condenser (0.05~1µF) between + pin and –
pin of each position sensing device.
If there is a plunge in control input, insert the condenser (0.001∼0.1µF) between this pin and the
GND.
and then insert the condenser (C = 0.01∼0.1µF) between this connecting point and R
Aside from using a ringing absorbing condenser, consider a different method to connect the
condenser between each coil output and R
common impedance toward GND.
Use of C
(“8” pin) directly. Design the circuit not to have the
TA7259
P/F/FG
2
(0.01∼0.1µF) is also effective.
Fig. 4-a
TA7259P/F/FG
図 4-a
Fig. 3
図 3.
10
F
CC
pin. (Fig 4−b)
pin
Do not have common impedance with other
circuits.
Fig. 4-b
TA7259
P/F/FG
図 4-b
Fig. 5
図 5.
TA7259P/F/FG
F
pin. (Fig.4−a)
2006-4-14