lb11889m Sanyo Semiconductor Corporation, lb11889m Datasheet - Page 4

• Manufacturer Part Number: lb11889m
• Description: For Vcr Capstan Three-phase Brushless Motor Driver
• Manufacturer: Sanyo Semiconductor Corporation

0
Truth Table and Control Function
Note) “H” for FR represents a voltage of 2.75V or greater ; “L” represents a voltage of 2.25V or lower (at V CC = 5V).
Note) Input “H” for all input represents that (+) is higher than each phase input (-) by 0.01V or greater ; input “L”
Note) Since this drive scheme is the 180° energizing scheme, phases other than Sink, Source phases are not turned OFF.
Control Function & Current Limiter Function
I OUT
1
2
3
4
5
6
represents that (+) is lower than each phase input (-) by 0.01V or greatre.
1
Gm1 = 0.65A/Vtyp
Source → Sink
2.35Vtyp
V → W
W → V
U → W
W → U
W → V
V → W
W → U
U → W
U → V
V → U
V → U
U → V
Control characteristics VLIM = 5V
2
CTLREF : OPEN
3
3.15Vtyp
U
H
H
H
L
L
L
10
Hall input
VCTL
Gm2 = 1.50A/Vtyp
H
H
H
V
L
L
L
5
LB11889M
W
H
H
H
L
L
L
FR
H
H
H
H
H
H
L
L
L
L
L
L
0
200mVtyp
I OUT
10
Current limiter characteristics VCTL = 5V
2
Slope = 0.50A/Vtyp
3
VLIM
CTLREF : OPEN
4
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