ta7712fg TOSHIBA Semiconductor CORPORATION, ta7712fg Datasheet - Page 6

• Manufacturer Part Number: ta7712fg
• Description: 3-phase, Full-wave Brushless Dc Motor Controller Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

(2) Each Control Input
(3) Output Circuitry
(4) Position Sensor Iinputs
Note:
As shown in the block diagram, the high-side outputs come from the emitters of Darlington-connected PNP
and NPN transistors, and the low-side outputs are open-collectors of NPN transistors.
Connect external transistors in the same manner as shown in the application circuit.
The input voltage swing should be between 20 mV
START / STOP
H or L
In Stop mode, all outputs of La
In Break mode, outputs of La
H
H
L
High: Start
CW / CCW
20 mVpp – 500 mVpp
H or L
H or L
H
L
+
+
through Lc
through Lc
High: Positive Torque
Low: Negative Torque
+
Figure 2
+
are enabled. (Source mode)
BRAKE
and La
H
H
H
L
PP
6
Waveforms of the Hb and Hc input signals
behave the same.
and 500 mV
−
through Lc
Low: Brake
Positive Torque mode
Negative Torque mode
Break mode
Stop mode
PP.
−
are disabled.
OUTPUT
TA7712P/PG/F/FG
2007-9-11