OM9375

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 160V 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

Motor Supply Voltage, V_m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 Vdc
Peak Motor Supply Voltage V_{m pK} . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200 Vdc
Average Phase Output Current, I_o . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Amperes DC*
Peak Phase Output Current, I_om . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 Amperes Peak**
Control Supply Voltage, V_cc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +18 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, R_jc. . . . . . . . . . . . . . . . . . . . . .  . . 0.35°C/W
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


Description

The OM9375 is one of a series of versatile, integrated three-phase brushless DC motor controller/driver subsystems housed in a 43 pin power flatpack. The OM9375 is best used as a two quadrant speed controller for controlling(driving fans), pumps, and motors in applications which require small size. Many integral control features provide the user much flexibility in adapting the OM9375 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.