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參數(shù)資料
| 型號： | KA3020D |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 光電元器件 |
| 英文描述： | 3-Phase BLDC Motor Driver(三相無刷直流電機(jī)驅(qū)動器) |
| 中文描述： | CD MOTOR DRIVER, PDSO28 |
| 封裝： | 0.375 INCH, HSSOP-28 |
| 文件頁數(shù)： | 7/18頁 |
| 文件大?。?/td> | 281K |
| 代理商： | KA3020D |
FAN8420D (KA3020D); PRELIMINARY
7
Electrical Characteristics (Continued)
CALCULATION OF GAIN & TORQUE LIMIT CURRENT
0.355 is GM times R1 and is a fixed value within IC.
Vmax (see above block diagram) is set at 350mV.
EC
ECR
+
Gm
+
+
Absolute
Values
Current / Voltage
Convertor
R1
Vin
+
Driver
VM
Vmax
Max. output current limiting
+
VM
VM
Negative
Feedback loop
I
O
R
S
V
S
+
CS1 (Pin 28)
Output
Current sense
Power
Transistors
Commutation
Distributor
U
V
W
H1
H2
H3
I
O
Gain
R
S
--------------
A V
[
]
=
Itl
R
S
---------------
R
S
]
-----------------------
=
=
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