SMCS6MXX-XX is an, integrated three-phase sensorless brushless DC motor controller/driver subsystems housed in a 43 Pin power flatpack. SMCS6MXX-XX is a completely self-contained motor controller that converts an analog input command signal into a motor speed. SMCS6MXX-XX is best used as a two quadrant speed controller for controlling/driving fans, pumps, and motors in applications which require small size. SMCS6MXX-XX is available with MOSFET power stage for DC bus voltage from 28V to 160V, and with IGBT power stage for DC 300V DC bus systems The small size of the complete subsystem is ideal for aerospace, military, high-end industrial, and medical applications.

FEATURES

Fully integrated 3-phase brushless DC motor control subsystem includes power stage, non-isolated driver stage, and controller stage
Up to 40A average DC bus current with up to 60VDC bus voltage, or 30A with up to 150VDC bus voltage.
sensorless commutation
Internal precision current sense resistor.
Cycle by cycle current limiting.
Fixed frequency PWM from zero speed to full speed.
Closed-loop speed control.
Direction input for direction reversal of motor
Tacho output with frequency output proportional to speed
Soft start input with adjustable starting time.
Under-voltage shutdown for the 15V VCC.
Duty-cycle is limited to 99% .
Current limit reference for programmable over-current limit.
DC bus current sense amplifier.
Two Quadrant Mode of Operation.
MOSFET Output Stage, with lowest Rdson.
Hermetic or non-hermetic device (3.10" x 2.10" x 0.385")

APPLICATIONS

Fans and Pumps

KEY PARAMETER ABSOLUTE MAXIMUM RATINGS

Characteristic	Maximum
Operating DC Bus Supply Voltage SMCS6M40-10-1 SMCS6M40-25-1	60 V 150 V
Maximum Peak DC Bus Supply Voltage SMCS6M40-10-1, SMCS6M40-25-1	100 V 250 V
RMS Output Motor Current for SMCS6M40-10-1 SMCS6M40-25-1	40 A 30 A
Instantaneous Peak Output Current for SMCS6M40-10-1 SMCS6M40-25-1	60 A 40 A
+15V Supply Voltage	+17 V
Logic Input Voltage	-0.3 V to +5.5 V
Operating & Storage Junction Temperature	-55 °C to +150 °C
Power Devices Thermal Resistance R_thjC for SMCS6M40-XX-1	0.60 °C/W
Pin-to-Case Voltage Isolation, at room conditions	600V DC
Lead Soldering Temperature, 10 seconds maximum, 0.125” from case * Tcase = 25°C	300°C