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参数资料
| 型号： | LB1817W |
| 元件分类： | 运动控制电子 |
| 英文描述： | DISK DRIVE MOTOR CONTROLLER, 1.5 A, PQFP48 |
| 封装： | SQFP-48 |
| 文件页数： | 6/9页 |
| 文件大小： | 224K |
| 代理商： | LB1817W |
LB1817W
No. 5805-6/9
Continued from preceding page
Pin number
20
21
22
23
26
27
28
29
30
32
33
34
35
38
39
40
41
Pin name
RF
PG
FG+
FG–
FGout
UOUT
UPB
VOUT
VPB
WOUT
WPB
UIN2
UIN1
VIN2
VIN1
WIN2
WIN1
Equivalent circuit
Pin function
Output current detection pin.
To detect output current as a voltage,
insert a resistor Rf between this pin and
VCC. The voltage is used for the current
limiter. The detection level is about 1/50
of the output current.
Output transistor ground pin.
Connect to ground together with pin 6.
FG amplifier + pin
FG amplifier – pin
FG amplifier output pin.
U phase output pin.
U phase external PNP transistor base
connection.
V phase output pin.
V phase external PNP transistor base
connection.
W phase output pin.
W phase external PNP transistor base
connection.
U phase Hall input pin.
Logic High means UIN1 > UIN2.
V phase Hall input pin.
Logic High means VIN1 > VIN2.
W phase Hall input pin.
Logic High means WIN1 > WIN2.
Pin voltage
2.5V typ
Continued on next page
VCC
200
100
200
12k
23
22
VCC
39
1k
200
26
VCC
30
28
33
21
29
27
32
VCC
200
38
34
40
39
35
41
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