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OM9369CM Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

Part # OM9369CM
Description  FULL-FEATURED POWER MODULE FOR HIGH-VOLTAGE DIRECT DRIVE OF 3-PHASE BRUSHLESS DC MOTORS
PDF  10 Pages
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Manufacturer  ETC [List of Unclassifed Manufacturers]
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OM9369CM Datasheet(HTML) 2 Page - List of Unclassifed Manufacturers

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COMMUTATION TRUTH TABLE
This table shows the Phase Output state versus
the state of the Hall-Effect and Direction Inputs.
Please note that the OM9369CM 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
increments.
Also,
internal
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).
2.1 - 2
SIMPLIFIED BLOCK DIAGRAM
OM9369CM
VCC (1)
Ground (20)
EA1+ (5)
Hall_1 (23)
Hall_2 (22)
Hall_3 (21)
Direction (25)
OV_Coast (18)
Tach_Out (16)
V_Motor (B)
Phase_A (E)
Phase_C (C)
EA1- (3)
EA1_Out (9)
EA2+ (4)
EA2- (7)
EA2_Out (8)
PWM_In (10)
Osc (11)
+5V_Ref (6)
Quad_Sel (15)
I_Sense (12)
ISH (13)
ISL (14)
CSL (27)
CSH (26)
Phase_B (D)
Pwr_Gnd (A)
Delay (2)
RC_Brake (17)
Speed_In (24)
SStart (19)
R/C
R/C
Filter
High-Side/
Low-Side
Drivers
with Bootstrap
and Charge Pump
High-Side/
Drivers
Low-Side
with Bootstrap
Low-Side
with Bootstrap
and Charge Pump
High-Side/
Drivers
and Charge Pump
Startup
Circuit
Vcc
Tach_Out
Tach_Out
V_Ref
Vcc
V_Ref
Quad_Sel
OV_Coast
Quad_Sel
OV_Coast
ISH
ISL
ISH
ISL
Delay
Delay
RC_Brake
RC_Brake
SStart
SStart
+
-
+
-
R_Sense
UC1625
RC_OSC
25
GND
15
E/A_IN(+)
1
E/A_OUT
27
PWM_IN
26
E/A_IN(-)
28
VREF
2
H1
8
H2
9
H3
10
DIR
6
RC_BRAKE
21
QUAD_SEL
22
OV_COAST
23
SSTART
24
PUA
18
PUC
16
PUB
17
PDC
12
PDB
13
PDA
14
ISENSE_1
4
ISENSE_2
5
SPEED_IN
7
ISENSE
3
TACH_OUT
20
DIGITAL INPUTS
PHASE OUTPUTS
Dir
H1
H2
H3
A
B
C
1
0
0
1
Hi-Z
Sink
Source
1
0
1
1
Sink
Hi-Z
Source
1
0
1
0
Sink
Source
Hi-Z
1
1
1
0
Hi-Z
Source
Sink
1
1
0
0
Source
Hi-Z
Sink
1
1
0
1
Source
Sink
Hi-Z
0
1
0
1
Sink
Source
Hi-Z
0
1
0
0
Sink
Hi-Z
Source
0
1
1
0
Hi-Z
Sink
Source
0
0
1
0
Source
Sink
Hi-Z
0
0
1
1
Source
Hi-Z
Sink
0
0
0
1
Hi-Z
Source
Sink
X
0
0
0
Hi-Z
Hi-Z
Hi-Z
X
1
1
1
Hi-Z
Hi-Z
Hi-Z



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