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Número de pieza | OMC506 | |
Descripción | Closed Loop Speed Controller For 3-Phase Brushless DC Motor MP-3T Package | |
Fabricantes | International Rectifier | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de OMC506 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
No Preview Available ! PD-95805
Closed Loop Speed Controller For
3-Phase Brushless DC Motor
MP-3T Package
OMC506
Description:
The OMC506 is an integrated, high density, three phase
Brushless DC (BLDC) motor, speed controller housed in a
MP-3Tpackage. The OMC506 contains the power, driver
and control electronics to adjust timing functions and speed
control loop parameters to optimize the controller for each
application. The electronics contained in the OMC506 are
assembled using mixed process technologies: surface
mount components on a printed circuit board and chip &
wire on an Insulated Metal Substrate.This combination
offers small size, excellent thermal characteristics and
electrically isolated heat sink.
MP-3T
Features:
n 10A Average Phase Output Current
n Over Temperature Protection
n Compensation Circuitry Adjustable to
Motor Parameters
n Speed Controlled by 0 to 5V Linear
Input Signal
n Forward or Reverse Direction
n Isolated, Low Profile Package
Absolute Maximum Ratings
Symbol
Parameter
VM
VM pk
IO
IOP
IOSC
VREF
Motor Supply Voltage
Peak Motor Supply Voltage
Average Phase Output Current
Pulsed Output Current ( <1% Duty Cycle )
Oscillator Input Current ( Source or Sink )
Reference Output Voltage ( IREF = 1.0mA )
IREF
VSPEED
VTACH
VCNTL
VCS
Digital Inputs ( Fwd / Enable / Brake / SA /SB / SC )
Reference Output Current ( VREF = 6.2V )
Speed Control Input Voltage
Tachometer Input Voltage
Temperature Control Input Voltage
Regulator Output Current ( VREG + 15V )
Current Sense Input Voltage
TOP Operating Temperature Range
32
48
10
30
30
6.5
6.5
10
-0.3 to VREF
-0.3 to VREF
6.2
100
-0.3 to 5.0
-25 to 85
Units
Vdc
V
A
mA
V
mA
V
mA
V
°C
www.irf.com
1
11/24/03
1 page OMC506
Current Limit
The OMC506 provides outputs from the internal current sense resistor (pin 7& 8). These outputs can be
directly wired to the C.S. +, C.S.- (pin 28 & 27) inputs. The outputs can also be used in external current limit
circuitry. Figure 1 shows a typical connection of the OMC506’s current limit circuitry.
Figure 1 - Current Limit Circuitry
Over Temperature Protection
The OMC506 has been designed with an internal over temperature protection circuit. The circuit provides a
diagnostic in the event an over temperature condition occurs in the power stage. The circuit normally outputs
a voltage level < 0.5Vdc. When the power stage reaches 140°C, the VOUT (pin19) will rise to +15Vdc. The
OMC506 also outputs a control function for this circuitry. A logic “0” at pin 18 will disable the over temperature
circuit and a logic “1” will force VOUT to go high. The over temperature circuitry has been designed to interface
with a system controller. The system controller can act on the pretense of an over temperature and shut the
OMC506 down. The system controller may opt to over ride the over temperature flag and disable the circuit
over temperature circuitry. In addition, the system controller can force the VOUT high as part of a built in test
(BIT) feature at the system level. The over temperature circuitry will reset when the power stage has cooled to
130°C. Finally, an internal diode can be jumpered causing the temperature circuitry to latch on trip, requiring
a power off reset.
www.irf.com
5
5 Page |
Páginas | Total 7 Páginas | |
PDF Descargar | [ Datasheet OMC506.PDF ] |
Número de pieza | Descripción | Fabricantes |
OMC506 | Closed Loop Speed Controller For 3-Phase Brushless DC Motor MP-3T Package | International Rectifier |
OMC506 | Closed Loop Speed Controller For 3-Phase Brushless DC Motor MP-3T Package | International Rectifier |
OMC507 | FULL-FEATURED CIRCUIT BOARD ASSEMBLY FOR DIRECT DRIVE OF 3-PHASE BRUSHLESS DC MOTORS | ETC |
OMC507 | FULL-FEATURED CIRCUIT BOARD ASSEMBLY FOR DIRECT DRIVE OF 3-PHASE BRUSHLESS DC MOTORS | ETC |
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