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| 型号： | TA7712FG |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.025 A, PDSO24 |
| 封装： | 0.300 INCH, 1 MM PITCH, PLASTIC, SSOP-24 |
| 文件页数： | 13/16页 |
| 文件大小： | 605K |
| 代理商： | TA7712FG |
TA7712P/PG/F/FG
2007-9-11
6
(2) Each Control Input
Figure 2
START / STOP
CW / CCW
BRAKE
OUTPUT
H
Positive Torque mode
H
L
H
Negative Torque mode
H or L
L
Break mode
L
H or L
H
Stop mode
Note:
In Stop mode, all outputs of La
+
through Lc
+
and La
through Lc
are disabled.
In Break mode, outputs of La
+
through Lc
+
are enabled. (Source mode)
(3) Output Circuitry
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.
(4) Position Sensor Iinputs
The input voltage swing should be between 20 mVPP and 500 mVPP.
Waveforms of the Hb and Hc input signals
behave the same.
High: Start
High: Positive Torque
Low: Negative Torque
Low: Brake
33
k
Ω
33
k
Ω
33
k
Ω
15
k
Ω
15
k
Ω
15
k
Ω
20 mVpp – 500 mVpp
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