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參數(shù)資料
| 型號： | BA6458FP-Y |
| 廠商： | Rohm CO.,LTD. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 3-phase motor driver |
| 中文描述： | 3相電機(jī)驅(qū)動器 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 135K |
| 代理商： | BA6458FP-Y |
606
Motor driver ICs
BA6458FP-Y
Circuit operation
(1)
The 3-phase Hall signal is amplified in the hall am-
plifiers and sent to the matrix section, where the signal is
further amplified and combined. After the signal is con-
verted to a current in the amplitude control circuit, the cur-
rent is supplied to the output driver, which then provides
a motor drive current. The phases of the Hall input signal,
output voltage, and output current are shown in Fig. 1.
(2)
The output current can be controlled by adjusting the
voltage applied to the torque control pin (pin 9).
Torque control pin
(3)
The motor is in the run mode when the pin input voltage
is 3.5V or more and in the idle mode (all output transistors
are off) when the voltage is 1.2V or less.
(4)
Power ground pin (R
NF
pin)
The R
NF
pin is the output stage ground pin. Connect a re-
sistor (0.5
recommended) between this pin and the
ground to monitor the output current.
(5)
Torque limit pin (TL pin)
The output current can be limited by applying a voltage
to the torque limit pin. Control is provided so that this pin
will have the same potential as the R
NF
pin. Note that
there is an offset in the TL-pin voltage.
(6)
Phase compensation pin (C
NF
pin)
Connect a capacitor between this pin and V
CC
if the out-
put tends to oscillate.
(7)
Amplifiers 1 and 2
Amplifiers 1 and 2 have an open loop gain of about 70dB
(typical). The input terminals are biased internally to
2.45V (typical).
(8)
Hysteresis amplifiers
The hysteresis amplifiers have a hysteresis width of
±
120mV (typical). The input terminals are biased inter-
nally.
Start/stop pin
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| BA6459 | 3-PHASS DD MOTOR DRIVERS |
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| BA6459 | 制造商:ROHM 制造商全稱:Rohm 功能描述:3-PHASS DD MOTOR DRIVERS |
| BA6459FS | 制造商:ROHM 制造商全稱:Rohm 功能描述:3-PHASS DD MOTOR DRIVERS |
| BA6459P | 制造商:ROHM 制造商全稱:Rohm 功能描述:3-PHASS DD MOTOR DRIVERS |
| BA6459S | 制造商:ROHM 制造商全稱:Rohm 功能描述:3-PHASS DD MOTOR DRIVERS |
| BA6462FP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
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