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參數資料
| 型號： | FAN8420D |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | 3-Phase BLDC Motor Driver(三相無刷直流電機驅動器) |
| 中文描述： | BRUSHLESS DC MOTOR CONTROLLER, PDSO28 |
| 封裝： | 0.375 INCH, HEAT SINK, SSOP-28 |
| 文件頁數： | 11/18頁 |
| 文件大小： | 281K |
| 代理商： | FAN8420D |
FAN8420D (KA3020D); PRELIMINARY
11
Therefore, the output of the rotational direction detector is low, when the spindle rotates forward, and high in the reverse rota-
tion.
6. REVERSE ROTATION PREVENTION
When the output of the OR Gate, A is LOW, it steers all the output current of the current sense Amp to the Gain Controller
zero. The output current of the Driver becomes zero and the motor stops.
As in the state of the forward rotation, the D-F/F output, Q is HIGH and the motor rotates normally. At this state, if the
control input is changed such that EC>ECR, then the motor rotates slowly by the reverse commutation in the Driver. When
the motor rotates in reverse direction, the D-F/F output becomes Low and the OR Gate output, becomes LOW. This
prevents the motor from rotating in reverse direction. The operation principle is shown in the table and the flow chart.
Rotation
H2
H3
D-F/F(Q)
Reverse rotation preventer
E
C
<E
CR
Forward
-
E
C
>E
CR
-
Brake and stop
Forward
Reverse
H
L
H
→
L
H
→
L
H
L
(b) Forward rotation
H1
H2
H3
+
+
+
Current
Sense
Amp
Gain
Controller
Driver
D-F/F
M
D
Q
CK
H3+
H3
H2+
H2
E
C
E
CR
A
Low Active
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| FAN8422G | Floppy Disk Drive Spindle Motor Driver |
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| FAN8423D3 | 3-Phase BLDC Motor Driver |
| FAN8423D | 3-Phase BLDC Motor Driver(三相無刷直流電機驅動器) |
| FAN8434 | Camcorder 3 in 1 Motor Driver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| FAN8420D3 | 功能描述:馬達/運動/點火控制器和驅動器 BLDC Motor Driver 3Phse 3.3V Interface RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| FAN8420D3TF | 功能描述:馬達/運動/點火控制器和驅動器 BLDC Motor Driver 3Phse 3.3V Interface RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| FAN8420DTF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC Motor Controller/Driver |
| FAN8422G | 功能描述:馬達/運動/點火控制器和驅動器 BLDC Motor Driver 3 Phase RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| FAN8423D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC Motor Controller/Driver |
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