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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(yè)數(shù)： | 7/16頁(yè) |
| 文件大?。?/td> | 279K |
| 代理商： | LB1821M |
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No. 5686-15/16
LB1821M
Continued from preceding page.
Pin No.
Pin
Functions
Equivalent circuit
33
VREG
7-V shunt regulator output
34
CR
PWM oscillator frequency setting
35
CROCK
Reference signal oscillator connection. This oscillator is
used by the motor constraint detection circuit, the clock
disconnection protection circuit, and other circuits.
A protection operation time of about 2.1 seconds can be set
up by connecting a capacitor of about 0.047 μF between
this pin and ground.
36
R
Setting for the charge current used for the VCO circuit C pin
Connect a resistor between this pin and ground. The value
of that resistor must not be lower than 2.7 kΩ.
37
C
VCO oscillator connection. This pin sets the VCO
frequency.
Connect a capacitor between this pin and ground.
Set the value of the capacitor so that the oscillator
frequency does not exceed 1 MHz.
Continued on next page.
200
Ω
33
ILB00735
VCC
34
ILB00736
200
Ω
1k
Ω
VCC
35
ILB00737
200
Ω
VCC
36
ILB00738
200
Ω
VCC
37
ILB00739
200
Ω
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