OM9373

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 80V 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")


Application

Fans and Pumps
Hoists
Actuator Systems


Specifications

Parameter	Symbol	Value	Units
Motor Supply Voltage	Vm	80	V
Peak Motor Supply Voltage	Vm pk	100
Average Phase Output Current	Io	25	A*
Peak Phase Output Current	Iom	50	Apeak **
Control Supply Voltage	Vcc	+18	V
Logic Input Voltage (Note 1)		-0.3 to +8.0
Reference Source Current		-30	mA
Error Amplifier Input Voltage Range	( EA1+ / EA1-)	-0.3 to +10	V
Error Amplifier Output Current		±8	mA
Spare Amplifier Input Voltage	( EA2+ / EA2-)	-0.3 to +10	V
Spare Amplifier Output Current		±8	mA
Current Sense Amplifier Input Voltage	(ISH / ISL)	-0.3 to +6.0	V
Current Sense Amplifier Output Current		±10	mA
Tachometer Output Current
PWM Input Voltage		-0.3 to +6.0	V
Operating Junction Temperature		-55 to 150	°C
Storage Temperature Range		-65 to 150
Lead Soldering Temperature, 10s maximum, 0.125" from case		300
Package Isolation Voltage		600	Vrms
Power Switch Junction-to-Case Thermal Resistance	RJC	0.35	°C/W

Description

The OM9373 is one of a series of versatile, integrated three-phase brushless DC motor controller/driver subsystems housed in a 43 pin power flat-pack. The OM9373 is best used as a two quadrant speed controller for controlling/driving fans, pumps, and motors in applications which require sm-all size.  Many integral control features provide the user much flexibility in adapting the OM9373 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.