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PD-95805

Closed Loop Speed Controller For

3-Phase Brushless DC Motor

MP-3T Package

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.

OMC506

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

V

M

V

M

pk

I

O

I

OP

I

OSC

V

REF

I

REF

V

SPEED

V

TACH

V

CNTL

V

CS

T

OP

Parameter

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 ( I

REF

= 1.0mA )

Digital Inputs ( Fwd / Enable / Brake / SA /SB / SC )

Reference Output Current ( V

REF

= 6.2V )

Speed Control Input Voltage

Tachometer Input Voltage

Temperature Control Input Voltage

Regulator Output Current ( V

REG

+ 15V )

Current Sense Input Voltage

Operating Temperature Range

32

48

10

30

30

6.5

6.5

10

-0.3 to V

REF

-0.3 to V

REF

6.2

100

-0.3 to 5.0

-25 to 85

Units

Vdc

V

A

mA

V

mA

V

mA

V

擄C

www.irf.com

1

11/24/03

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