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参数资料
| 型号： | LB1998 |
| 厂商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分类： | 运动控制电子 |
| 英文描述： | DISK DRIVE MOTOR CONTROLLER, 1.3 A, PDSO28 |
| 封装： | 0.375 INCH, HSOP-28 |
| 文件页数： | 5/7页 |
| 文件大小： | 120K |
| 代理商： | LB1998 |
LB1998
No.5979-5/7
Pin Function
Pin No.
Pin name
Pin voltage
Pin function
Equivalent circuit
19
VCC2
4V to 13.6V
Source side pre-drive voltage and constant
current control amplifier voltage supply pin.
17
VCC1
4V to 6V
Power supply pin for all circuits except output
transistors, source pre-driver, and low current
control amplifier.
9
RS
Reverse detector pin.
Forward rotation: High
Reverse rotation: Low
8
FG
1 Hall or 3 Hall element waveform Schmitt
comparator combined output.
8 9
VCC1
10k
100
A
15
16
UIN1
UIN2
U phase Hall element input and reverse
detector U phase Schmitt comparator input pin.
Logic High indicates UIN1 > UIN2.
13
14
VIN1
VIN2
V phase Hall element input and reverse detector
U phase Schmitt comparator input pin.
Logic High indicates VIN1 > VIN2.
11
12
WIN1
WIN2
1.2V to
VCC1-1V
W phase Hall element input and reverse
detector U phase Schmitt comparator input pin.
Logic High indicates WIN1 > WIN2.
13
11
15
200
200
14
12
16
VCC1
25
A
25
A
25
A
10
VH
Hall element lower side bias voltage supply pin.
10
VCC1
75
A
2k
30k
6
S/S
OV to VCC1
When this pin is at 0.7V or lower, or when it is
open, all circuits are inactive. When driving
motor, set this pin to 2V or higher.
6
VCC1
50k
75k
5
SIG GND
GND pin for all circuits except output.
24
FC
Control loop frequency compensator pin.
Connecting a capacitor between this pin and
GND prevents closed loop oscillation in current
limiting circuitry.
24
VCC1
5k
20k
2k
23
VCREF
0V to 3.5V
Control reference voltage supply pin.
Determines control start voltage.
23
VCC1
200
15
A
25
A25A
68k
15
A
Continued on next page.
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