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参数资料
| 型号： | LB1978V |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.6 A, PDSO30 |
| 封装： | SSOP-30 |
| 文件页数： | 4/9页 |
| 文件大小： | 78K |
| 代理商： | LB1978V |
LB1978V
No. 6186-4/9
Equivalent Circuit Block Diagram
Sample Application Circuit
Oscillator
Divider
Rotation
detector
Brake
circuit
Constant
current circuit
Startup
detection
Current bias
Reference
voltage
Speed
select
divider
d/dt
Pulse
Current
buffer
VI
PGND
DU
FC
W2
V2
U2
W1
V1
U1
BR2
BR1
P3
P2
P1
TC2
TC1
DR
IRF
COM
S/S
Vref
SGND
F/S
CI
PW
PV IV
VI
Startup
switching
Soft switching
Vcc
OSC
Logic
circuitry
FG
pulse
Drive
select
+
predriver
Soft
switch
Comparator
30
28
29
27
25
26
24
22
23
21
19
20
18
16
17
1
3
2
4
6
5
7
9
8
10
12
11
13
15
14
Vcc VREF S/S
DR
F/S
W1
V1
U1
PGND W2
V2
U2
DU SGND P3
OSC COM IRF
FC
CI
PW
PV
IV
VI
BR1 BR2 TC1 TC2
P1
P2
0.33
F
0.1
F
680k
180
k
6.2k
0.1
F
0.033
F
20k
68k
180
k
2.2
F
1500pF
0.01
F
1k
0.01
F
0.01
F
0.01
F
1
F
100
LB1978V
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