OM9375 International Rectifier Corp., OM9375 Datasheet - Page 2
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OM9375
Manufacturer Part Number
OM9375
Description
25 Amp. Push-pull 3-phase Brushless Dc Motor Controller/driver Module In A Power Flatpack
Manufacturer
International Rectifier Corp.
Datasheet
1.OM9375.pdf
(12 pages)
OM9375
This table shows the Phase Output state versus
the state of the Hall-Effect and Direction Inputs.
Please note that the OM9375 Hall-Effect Inputs
are Grey-encoded; that is, only one input is
allowed to change from one input state to
another at a time.
The commutation coding shown reflects Hall-
Effect sensors that are spaced at 120
mechanical
protection logic disables all three Phase
Outputs when the Hall-Effect Inputs are set to
an illegal condition (i.e. all logic low or all logic
high).
COMMUTATION TRUTH TABLE
increments.
Also,
SIMPLIFIED BLOCK DIAGRAM
internal
2.1 - 2
Dir
X
X
1
1
1
1
1
1
0
0
0
0
0
0
DIGITAL INPUTS
H1
0
0
0
1
1
1
1
1
1
0
0
0
0
1
H2
0
1
1
1
0
0
0
0
1
1
1
0
0
1
H3
1
1
0
0
0
1
1
0
0
0
1
1
0
1
Source
Source
Source
Source
Hi-Z
Sink
Sink
Hi-Z
Sink
Sink
Hi-Z
Hi-Z
Hi-Z
Hi-Z
PHASE OUTPUTS
A
Source
Source
Source
Source
Sink
Hi-Z
Hi-Z
Sink
Hi-Z
Sink
Sink
Hi-Z
Hi-Z
Hi-Z
B
Source
Source
Source
Source
Hi-Z
Sink
Sink
Hi-Z
Hi-Z
Hi-Z
Sink
Sink
Hi-Z
Hi-Z
C