OM9369SP Ver la hoja de datos (PDF) - International Rectifier
Número de pieza
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Fabricante
OM9369SP
International Rectifier
OM9369SP Datasheet PDF : 14 Pages
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OM9369
PHASE OUTPUTS (Phase A, Pins 41 and 42;
Phase B, Pins 36 and 37; Phase C, Pins 31 and 32)
These outputs are connected to either Vmotor via
the pull-up driver or Source via the pull-down driver,
depending upon the Hall-Effect and Direction Inputs
(see Commutation Truth Table). The two pins associated
with each Phase Output must be connected to one of
the three phases of the motor driven by the OM9369.
VMOTOR (Pins 33, 38, and 43) - These pins are
connected to the most positive terminal of the motor
supply (Vm+). For proper operation, all three pins
must be connected together externally with a low
impedance power bus. The Vmotor power bus should
be bypassed with an adequately voltage-rated
ceramic capacitor, 0.1µF (typical), and a low-ESR
electrolytic capacitor, whose capacitance can be
selected by the following: 10µF-per-Ampere of average
motor current from Vmotor to Motor Return.
Note: All connections, including the power bus
capacitor connections, must be made as close as
possible to the Vmotor and Motor Return pins to
minimize parasitic effects.
Pin Designation
Pin No. Designation Pin No. Designation Pin No.
1
Vcc
12
ISH
23
2
EA1 "-" Input
13
ISL
24
3
EA2 "+" Input
14
Quad Select Input
25
4
EA1 "+" Input
15 Tachometer Output 26
5 +5V Reference Output 16 Brake/Tach Timing Input 27
6
EA2 "-" Input
17 Overvoltage/Coast Input 28
7
EA2 Output
18
Soft-Start Input
29
8
EA1 Output
19
Ground
30
9
PWM Input
20
H3 Input
31
10 Oscillator Timing Input 21
H2 Input
32
11
Isense
22
H1 Input
33
Designation
Speed Input
Direction Input
CSH
CSL
Motor Return
Motor Return
Source C
Source C
Phase C Output
Phase C Output
Vmotor
Pin No. Designation
34
Source B
35
36
37
38
39
40
41
42
43
Case
Source B
Phase B Output
Phase B Output
Vmotor
Source A
Source A
Phase A Output
Phase A Output
Vmotor
(No Connection)
12
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