LB1975 查看數據表（PDF） - ON Semiconductor
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LB1975 Datasheet PDF : 10 Pages
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Pin Assignment
LB1975
VCOUT VCTL OSC (NC) VCREF IN1− IN1+ IN2− IN2+ IN3− IN3+ FG1 FG2 GND1
28 27 26 25 24 23 22 21 20 19 18 17 16 15
LB1975
1
2
3
5
5
6
7
8
9 10 11 12 13 14 Top view
VCC VREG S/S F/R (NC) OUT1 OUT2 OUT3 (NC) (NC) GND3 GND2 RF VM
Truth Table
Input
IN1
IN2
IN3
1
H
L
H
2
H
L
L
3
H
H
L
4
L
H
L
5
L
H
H
6
L
L
H
Forward/reverse control
F/R
L
H
L
H
L
H
L
H
L
H
L
H
Output
Source → Sink
OUT2 → OUT1
OUT1 → OUT2
OUT3 → OUT1
OUT1 → OUT3
OUT3 → OUT2
OUT2 → OUT3
OUT1 → OUT2
OUT2 → OUT1
OUT1 → OUT3
OUT3 → OUT1
OUT2 → OUT3
OUT3 → OUT2
FG output
FG1
FG2
L
L
L
H
L
L
H
H
H
L
H
H
F/R
Forward rotation Low 0V to 1.5V
Reverse rotation High VCC − 1.5V to VCC
FG output
FG1
FG2
100
Duty -- VCTL characteristics
80
60
40
20
0
VCTL1
VCTL2
Control voltage, VCTL -- V
No.6087-4/10
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