OMNIREL OM9369CM Datasheet

205 Crawford Street, Leominster, MA 01 453 USA (978) 534-5776 FAX (978) 537-4246 Visit Our Web Site at www.omnirel.com

PRELIMINARY

FULL-FEA TURED POWER MODULE FOR HIGH-VOLT AGE DIRECT DRIVE OF 3-PHASE BRUSHLESS DC MOTORS

25 Amp. Push-Pull 3-Phase Brushless DC Motor Controller/Driver Module in a Ceramic-to-Metal Sealed Module

FEATURES

• Fully integrated 3-Phase Brushless DC Motor Control Subsystem includes power stage, non-isolated driver stage, and controller stage

• Rugged IGBT Power Output Stage with Soft Recovery Diode

• 25AAverage Phase Current with 300V 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 Lightweight Hermetic Ceramic-to-Metal Sealed Module (CERMOD

• (4.255" x 2.475" x .74")

)

OM9369CM

APPLICATIONS

• Fans and Pumps

• Hoists

• Actuator Systems

DESCRIPTION

The OM9369CM is one of a series of versatile, integrated three-phase brushless DC motor controller/driver subsystems housed in a CERMOD quadrant speed controller for controlling/driving fans, pumps, and motors in applications which require small size. Typical size brushless DC motors that the OM9369CM can effectively control range from fractional HP up to several HP. The OM9369CM is ideal for use on DC distribution busses up to and including 270Vdc. Many integral control features provide the user much flexibility in adapting the OM9369CM to specific system requirements.

The small size of the complete subsystem is ideal for aerospace, military, and high-end industrial applications.

8 10 R2 Supersedes 6 11 R1

. The OM9369CM is best used as a two

OM9369CM

SIMPLIFIED BLOCK DIAGRAM

VCC (1) Delay (2) Ground (20)

EA1+ (5) EA1- (3) EA1_Out (9) EA2+ (4) EA2- (7) EA2_Out (8) Osc (11) PWM_In (10) SStart (19) +5V_Ref (6) Hall_1 (23) Hall_2 (22) Hall_3 (21) Direction (25)

Quad_Sel (15) OV_Coast (18) I_Sense (12) ISH (13) ISL (14) Tach_Out (16) RC_Brake (17) Speed_In (24) CSH (26) CSL (27)

Vcc Delay Delay

SStart

RC_Brake

Quad_Sel OV_Coast

ISH ISL

RC_Brake

SStart

R/C

Startup Circuit

R/C

V_Ref

Quad_Sel OV_Coast

ISH ISL

V_Ref

25 15

1 27 26 28

9 10

6 21 22 23 24

RC_OSC GND E/A_IN(+) E/A_OUT PWM_IN E/A_IN(-) VREF H1 H2 H3 DIR RC_BRAKE QUAD_SEL OV_COAST SSTART ISENSE ISENSE_1 ISENSE_2 SPEED_IN

UC1625

Vcc

VCC

PWR_VCC

TACH_OUT

PUA

PDA

PUB

PDB

PUC

PDC

High-Side/ Low-Side Drivers

with Bootstrap and Charge Pump

High-Side/ Low-Side Drivers

with Bootstrap and Charge Pump

High-Side/ Low-Side Drivers

with Bootstrap and Charge Pump

Tach_OutTach_Out

R_Sense

V_Motor (B)

Phase_A (E)

Phase_B (D)

Phase_C (C)

Pwr_Gnd (A)

Filter

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 HallEffect 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).

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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OM9369CM

ABSOLUTE MAXIMUM RATINGS

Motor Supply Voltage, Vm.................................................. 300 Vdc

Peak Motor Supply Voltage V

Average Phase Output Current, Io ................................... 25 Amperes DC*

Peak Phase Output Current, Iom................................... 50 Amperes Peak**

Control Supply Voltage, V

Logic Input Voltage (Note 1) ............................................ -0.3 V to +8 V

Reference Source Current ................................................ -30 mAdc

Error Amplifier Input Voltage Range, (EA1+/EA1-) ....................-0.3 Vdc to 10 Vdc

Error Amplifier Output Current .............................................. ±8 mAdc

Spare Amplifier Input Voltage (EA2+/EA2-) ...........................-0.3 Vdc to 10 Vdc

Spare Amplifier Output Current ............................................. ±8 mAdc

Current Sense Amplifier Input Voltage (ISH/ISL) ....................... -0.3 V to +6 Vdc

Current Sense Amplifier Output Current.....................................±10 mAdc

Tachometer Output Current................................................±10 mAdc

PWM Input Voltage ..............................................-0.3 Vdc to +6 Vdc

Operating Junction Temperature .....................................-55°C to +150° C

Storage Temperature Range........................................-65° C to +150° C

Power Switch Junction-to-Case Thermal Resistance, Rθ

Package Isolation Voltage .................................................600 Vrms

Lead Soldering Temperature .............300°C, 10 seconds maximum, 0.125” from case

* Tcase = 25° C ** Tcase = 25° C, Maximum pulse width = 10mSec

........................................... 500 Vdc

m pK

................................................... +18 V

jc......................0.48°C/W

RECOMMENDED OPERATING CONDITIONS (Tcase = 25° C)

Motor Power Supply Voltage, Vm ......................................... +270Vdc

Average Phase Output Current, I

With Internal Current Sense Resistor (Note 2)

Each Power Switch .............................................25 A

Control Supply Voltage, V

Logic Low Input Voltage, Vil........................................... 0.8 Vdc (max)

Logic High Input Voltage, Vih........................................... 2.0 Vdc (min)

Note 1: Logic Inputs: Direction, Hall Inputs (H1...H3) Overvoltage - Coast, Speed, and Quad Select. Note 2: The internal 5mΩ current sense resistor is limited to 6 Wdc power dissipation. Other values are available.

Please contact the factory for more information.

............................................ 15Vdc ±10%

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