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參數(shù)資料
| 型號： | FAN8001BDTF |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 光電元器件 |
| 英文描述： | Industrial Control IC |
| 中文描述： | CD MOTOR DRIVER, PDSO28 |
| 封裝： | 0.375 INCH, HEAT SINK, SSOP-28 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大?。?/td> | 288K |
| 代理商： | FAN8001BDTF |
FAN8001D
9
5. LOADING MOTOR SPEED CONTROL
If the torque of the loading motor is too low with the pin #20 open, then use it as the above diagram.
The desired torque could be obtained by selecting the appropriate resistor R as shown in the left diagram.
If it is necessary, the zener diode can be used as in the right diagram.
The maximum torque is obtained when the applied voltage at pin #20 is about 6.8V (at V
CC
=8V).
6. DRIVER (EXCEPT FOR LOADING MOTOR DRIVER)
The voltage, V
REF
, is the reference voltage given by the bias voltage of the pin #23.
The input signal through the pin #3 is amplified by 10k/10k times and then fed to the level shift.
The level shift produces the current due to the difference between the input signal and the arbitrary reference signal. The
current produced as +
I and
I is fed into the driver buffer.
Driver Buffer operates the power TR of the output stage according to the state of the input signal.
The output stage is the BTL Driver and the motor is rotating in forward direction by operating TR Q1 and TR Q4. On the
other hand, if TR Q2 and TR Q3 is operating, the motor is rotating in reverse direction.
When the input voltage through the pin #3 is below the V
REF
, the motor rotates forward direction.
When the input voltage through the pin #3 is above the V
REF
, the motor rotates reverse direction.
If it is desired to change the gain, then the pin #4 or #24 can be used.
20
20
V
CC
(8V)
4V
50k
R
V
CC
D
V
CC
R
50k
50k
50k
4V
V
CC
(8V)
+
+
+
10k
100k
VREF
(2.5V)
10k
AMP
Level
shift
I
+
I
Buffer
Buffer
Q1
Q3
M
Q2
Q4
V
+
V
25
19
10
3
24
4
11
1
17
27
12
2
18
26
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FAN8001D | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:5-Channel Motor Driver |
| FAN8001DTF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo/Spindle Motor Controller/Driver |
| FAN8002D2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo Motor Controller/Driver |
| FAN8004 | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Motor Driver 4Ch BTL+1Ch DC RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| FAN8005D2 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:3-CH Motor Driver |
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