International Rectifier OM9373
The OM9373 is one of a series of versatile, integrated three-phase brushless DC motor controller/driver subsystems housed in a 43 pin power flatpack. The OM9373 is best used as a two quadrant speed controller for controlling/driving fans, pumps, and motors in applications which require small size. The small size of the complete subsystem is ideal for aerospace, military, and high-end industrial applications.DESCRIPTION
: Many integral control features provide the user much flexibility in adapting the OM9373 to specific system requirements. Two package types provide a broad range of cost and screening options to fit any application.FEATURES
: n Fully Integrated 3-Phase Brushless DC Motor n n n n n n n n 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”)APPLICATIONS
: n Fans and Pumps n Hoists n Actuator Systems 1 11/21/03 OM9373ABSOLUTE MAXIMUM RATINGS
Parameter Motor Supply Voltage Peak Motor Supply Voltage Average Phas...