LB1929 データシートの表示（PDF） - ON Semiconductor
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LB1929
ON Semiconductor
LB1929 Datasheet PDF : 11 Pages
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Package Dimensions
unit : mm (typ)
3147C
LB1929
Pd max -- Ta
24
With an arbitrary large heat sink
20
16
12
8
4 Without heat sink
3
0
-20
0
20
40
60
80
100
Ambient temperature, Ta -- °C
Pin Assignment
OUT1 F/R IN3+ IN3- IN2+ IN2- IN1+ IN1- GND1 S/S FGIN+ FGIN- FGOUT LD
28 27 26 25 24 23 22 21 20 19 18 17 16 15
LB1929
1
2
3
4
5
6
7
8
9
OUT2 OUT3 GND2 VCC VM VREG PWM CSD XI
10 11 12 13 14
XO INTOUT INTIN POUT DOUT
Top view
Relationship between crystal oscillator frequency fOSC and FG frequency fFG is as follows.
fFG (servo) = fOSC/ (ECL divide-by-16×count number)
= fOSC/8192
Truth Table
1
2
3
4
5
6
Source
Sink
OUT2→OUT1
OUT3→OUT1
OUT3→OUT2
OUT1→OUT2
OUT1→OUT3
OUT2→OUT3
F/R = “L”
IN1 IN2 IN3
H
L
H
H
L
L
H
H
L
L
H
L
L
H
H
L
L
H
F/R = “H”
IN1
IN2 IN3
L
H
L
L
H
H
L
L
H
H
L
H
H
L
L
H
H
L
No.7099-4/11
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