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PDF OM9375 Data sheet ( Hoja de datos )
| Número de pieza | OM9375 | |
| Descripción | Brushless DC Motor Controller/Driver Module | |
| Fabricantes | ETC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de OM9375 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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FULL-FEATURED POWER MODULE FOR DIRECT DRIVE
OF 3-PHASE BRUSHLESS DC MOTORS
OM9375
25 Amp. Push-Pull 3-Phase Brushless
DC Motor Controller/Driver Module
in a Power Flatpack
FEATURES
• Fully integrated 3-Phase Brushless DC Motor Control Subsystem
includes power stage, non-isolated driver stage, and controller stage
• MOSFET Output Stage
• 25A Average Phase Current with 160V Maximum Bus Voltage
• Internal Precision Current Sense Resistor (6W max. dissipation)
• Speed and Direction Control of Motor
• Brake Input for Dynamic Braking of Motor
• Overvoltage/Coast Input for Shutdown of All Power Switches
• Soft Start for Safe Motor Starting
• Unique Hermetic or Plastic Ring Frame Power Flatpacks
• Hermetic (3.10" x 2.10" x 0.385")
• Plastic Ring Frame (4.13" x 2.00" x 0.49")
APPLICATIONS
• Fans and Pumps
• Hoists
• Actuator Systems
DESCRIPTION
The OM9375 is one of a series of versatile, integrated three-phase brushless DC motor
controller/driver subsystems housed in a 43 pin power flatpack. The OM9375 is best used as a two
quadrant speed controller for controlling/driving fans, pumps, and motors in applications which require
small size. Many integral control features provide the user much flexibility in adapting the OM9375 to
specific system requirements.
The small size of the complete subsystem is ideal for aerospace, military, and high-end industrial
applications. Two package types provide a broad range of cost and screening options to fit any
application.
8 10 R2
Supersedes 6 11 R1
205 Crawford Street, Leominster, MA 01453 USA (978) 534-5776 FAX (978) 537-4246
Visit Our Web Site at www.omnirel.com
1 page  
OM9375
Parameter
Symbol
Soft-Start Section
Soft-Start Pull-Up Current
Ip
Soft-Start Discharge Current
Id
Soft-Start Reset Threshold Voltage Vth
Tachometer/Brake Section
Tachometer Output High Level
Voh
Tachometer Output Low Level
Vol
Tachometer On-Time
Tachometer On-Time Variation
Brake/Tach Timing Input Current
Brake/Tach Timing
Threshold Voltage
Brake/Tach Timing
Voltage Hysteresis
Speed Input Threshold Voltage
Speed Input Current
ton
--
Iin
Vth
Vh
Vth
Iin
Oscillator Section
Oscillator Frequency
fo
Conditions (Note 1)
V(pin) 18) = 0V
V(pin 18) = 2.5V
Tc over operating range
(Pin 15) 10kΩ to 2.5 V
Tc over operating range
(Pin 15) 10kΩ to 2.5 V
Tc over operating range
V (pin 16) = 0V
Tc over operating range
Tc over operating range
Measured at pin 10
MIN.
-16
0.1
0.1
4.7
85
-4.0
0.8
220
-30
13.5
TYP.
-10
0.4
0.2
5.0
100
0.1
-1.9
1.0
0.09
257
-5
14.8
MAX.
-5
3.0
0.3
5.3
0.2
140
1.2
290
30
20.0
Units
uA
mA
V
V
V
us
%
mA
V
V
mV
uA
kHz
SPECIFICATION NOTES:
1. All parameters specified for Ta = 25°C, Vcc = 15Vdc, Rosc = 75KΩ (to Vref), Cosc = 1800 pF, and all Phase Outputs unloaded (Ta ~ Tj). All negative currents shown
are sourced by (flow from) the pin under test.
2. Either ISH or ISL may be driven over the range shown.
3. Bold parameters tested at -55°C, 25°C, 125°C for SFB.
4. Pulse Test: Pulse Width < 300 µSec, Duty Cycle < 2%.
PINOUT
PIN#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
NAME
VCC
EA1 “-” Input
EA2 “+” Input
EA1 “+” Input
+5V Reference Output
EA2 “-” Input
EA2 Output
EA1 Output
PWM Input
Oscillator Timing Input
Isense
ISH
ISL
Quad Select Input
Tachometer Output
Brake/Tach Timing Input
Overvoltage/Coast Input
Soft-Start Input
Ground
H3 Input
H2 Input
H1 Input
PIN#
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
(Case)
NAME
Speed Input
Direction Input
CSH
CSL
Motor Return
Motor Return
Source C
(No Connection)
Phase C Output
Phase C Output
Vmotor
Source B
Source B
Phase B Output
Phase B Output
Vmotor
Source A
Source A
Phase A Output
Phase A Output
Vmotor
(No Connection)
2.1 - 5
5 Page 
OM9375
Fig 3: Optional Start-Up Circuit
+15V
3.24k
COMMAND
1k
1.50k
FROM MOTOR HALL SENSORS
H3
H2
H1
10uF
+
.1uF
.1uF
10k
.1uF
4700pF
232
232
1
Vcc
2
3 EA1-
EA2+
4
EA1+
5
6 VREF
EA2-
7
EA2_OUT
8
9 EA1_OUT
PWM_IN
10
OSCILLATOR
11
12 I_SENSE
13 ISH
ISL
14
QUAD_SEL
15
16 TACH_OUT
BRAKE
17
OV_COAST
18
19 SOFT_START
GROUND
20
H3_HALL_INPUT
21
22 H2_HALL_INPUT
H1_HALL_INPUT
23
SPEED_IN
24
25 DIRECTION
CSH
26
CSL
43
V_MOTOR
PHASE_A_OUT
PHASE_A_OUT
42
41
SOURCE_A
SOURCE_A
40
39
38
V_MOTOR
PHASE_B_OUT
PHASE_B_OUT
37
36
SOURCE_B
SOURCE_B
35
34
33
V_MOTOR
PHASE_C_OUT
PHASE_C_OUT
32
31
N/C
SOURCE_C
30
29
28
MOTOR_RETURN
27
MOTOR_RETURN
V_MOTOR
C_BUS
+
C_FILT
MOTOR
H1
H2
H3
HALL SENSORS
Fig 4: Implementation of a Voltage-Mode Controller
2.1 - 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet OM9375.PDF ] | |
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