参数资料
型号: LB11985H
元件分类: 运动控制电子
英文描述: BRUSHLESS DC MOTOR CONTROLLER, 1.5 A, PDSO28
封装: HSOP-28
文件页数: 8/9页
文件大小: 157K
代理商: LB11985H
No. 6209-8/9
LB11985H
Pin No.
Symbol
Pin Voltage
Description
Equivalent circuit
Frequency characteristics correction.
Oscillation in the current control system closed loop
can be prevented by inserting a capacitor between
this pin and ground.
23
300
18 k
15
k
20
k
50 A50 A
VCC
25
A13023
26
45 k
15
k
15
k
VCC
A13025
Current limiter function control.
The voltage applied to this pin modifies the output
current linearly.
Forward/reverse control.
The voltage applied to this pin selects forward or
reverse operation.
26
FR
Speed control.
Control consists of a constant current drive scheme
implemented by applying current feedback from
RF.
25
CTL
24
LIM
Continued from preceding page.
22
FC
23
CTLREF
Control reference voltage.
Although this voltage is set to VCC × (15/35)
internally, it can be modified by applying a voltage
from a low-impedance circuit.
22
6 S
VCC
A13022
60
k
20
k
24
1 k
VCC
A13024
0 V to VCC
External torque ripple correction ratio adjustment.
To adjust the correction ratio, apply the stipulated
voltage to the ADJ pin from a low-impedance
external circuit.
If the applied voltage is increased, the correction
ratio rises, and if the applied voltage is lowered, the
correction ratio falls.
27
ADJ
Power supply for all circuits other than the IC
internal output block.
This voltage must be stabilized so that ripple and
noise do not enter the IC.
28
VCC
27
6 k
500
10
k
10
k
10
k
10
k
VCC
A13026
1 V to 4 V
(VCC = 5 V)
0 V to VCC
4.5 V to 5.5 V
Unit (resistance :
, current : A )
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