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参数资料
| 型号： | TA8490F |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1.2 A, PDSO30 |
| 封装： | 0.375 INCH, 1 MM PITCH, PLASTIC, SSOP-30 |
| 文件页数： | 3/22页 |
| 文件大小： | 593K |
| 代理商： | TA8490F |
TA8490F
2001-06-13
11
Hall element bias circuit
The hall element bias current is turned off when the driver IC is in standby state.
Make sure that the negative hall bias line is connected to the HB pin.
The remaining voltage is as follows :
VHB = 1.2 [V] (typ.)
at IHB = 10 mA
Furthermore, this circuit cannot be used if FG output is necessary in standby state.
When the HB terminal is not used, the negative hall bias line must be connected to GND with a resistor in
between.
FG amp circuit
This circuit uses a hall element signal which is output to FGO after a Schmitt stage.
The FG amp has a hysteresis of 20 [mVpp] (typ.) and its output voltages are
High level : VCC 0.5~VCC [V]
Low level
: GND~0.5 [V] at IOFG = 10 A
The FG amp is active when it is in standby state. When the hall element signal is input, the FG signal is
output.
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