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參數(shù)資料
| 型號(hào)： | LB1821M |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.03 A, PQFP44 |
| 封裝： | 10 X 10 MM, QFP-44 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 279K |
| 代理商： | LB1821M |
No. 5686-14/16
LB1821M
Continued from preceding page.
Pin No.
Pin
Functions
Equivalent circuit
19
20
21
22
23
24
IN1+
IN1–
IN2+
IN2–
IN3+
IN3–
Hall inputs
High is defined as IN+ > IN–, and low as the opposite.
An amplitude of 100 mV p-p (differential) or more is
desirable in the Hall signals. Connect capacitors between
the IN+ and IN– pins if noise on the Hall signals causes
problems.
25
RF
Output current detection
Connect a resistor between this pin and ground.
The output limitation maximum current, IOUT, is set to be
0.52/Rf by this resistor.
26
28
30
UL
VL
WL
This IC implements duty control using output signal PWM.
These are open collector sink outputs.
27
29
31
UH
VH
WH
Outputs (Fixed current source outputs)
32
VCC
Power-supply voltage
Connect a capacitor between this pin and ground for power
supply stabilization.
Continued on next page.
VCC
20
22
24
19 21 23
200
Ω
ILB00731
200
Ω
VCC
25
ILB00732
200
Ω
VCC
26 28 30
ILB00733
VCC
2k
Ω
27 29 31
ILB00734
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