TA7259F TOSHIBA [Toshiba Semiconductor], TA7259F Datasheet - Page 5

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

Control signal input
Control output is level shifted with DC content by zenner diode and attenuator, with control signal content by R
and R
a) Positive input
b) Negative input
such like, where the voltage is in proportion or inverse proportion to the number of rotations, or independently.
to improve the characteristics of W/F etc. by applying NF.
Control input
2
In the initial state of the TA7259P/F/FG, the control voltage is usually input either by an F/V inverter or
Though output (R
An example of the application is shown below.
Whether NF is applied or not, the DC voltage (V
One example is shown in Figure 1−c.
.
must be within the specified range (2.0 to V
(control output) cannot interface with the IC input, input DC level shift and attenuator before IC input.
F
pin) gain from the TA7259 control is specified in the table as 15 times, it can be reduced
VZ(5V is recommended)
TA7259P/F/FG
Figure 1-a
Figure 1-b
Figure 1-c
TA7259P/F/FG
Input pin
CC
−2.5V). When the input DC level and F/V conversion output
IN+ and
5
V
IN
−) of the control input (V
IN
TA7259P/F/FG
+ pin and V
2006-4-14
IN
− pin)
1