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IRMCT3UF1AH Datasheet(PDF) 5 Page - International Rectifier |
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IRMCT3UF1AH Datasheet(HTML) 5 Page - International Rectifier |
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5 / 7 page  www.irf.com 5 IRMCT3UF1 RX, TX (Pins 27 & 28) - RS-232 interface pins for programming the controller. The interface operates at 57.6kBaud. SPD_CMD (Pin 29) - Speed command for the motor controller. For the IRMCT3UF1, there are two operating ranges for the speed command input: 0- 2.5V and 2.5-5V. In each case, 2.5V is zero speed and the other extreme (0V or 5V) is maximum speed. An external 2.5V reference is provided to help configure a particular speed command interface. GRN, RED (Pins 30 & 31) - Outputs for driving Green and Red LEDs. These outputs are provided as a visual interface to determine the status of the drive. The Green LED output indicates a clear condition and the Red LED indicates that a Fault has occurred. Each output is referenced to +3.3V and is capable of driving a maximum current of 30mA. Also, each output has an internal series resistance of 100 Ω. FLT_CLR, FAULT (Pins 32 & 33) - Fault indication and Fault Clear function. Use these pins to monitor the Fault status of the controller. When there is no fault (clear condition), the fault pin is low. It goes to 3.3V upon the occurrence of a Fault. The controller can be reset by pulsing the Fault Clear pin high for a minimum of 1µs. This is a Schmitt input and is 5.5V tolerant. START/STOP (Pin 34) - Start and Stop command for the controller. The drive will start on the rising edge of the command and will stop on the falling edge. This is a Schmitt input and is 5.5V tolerant. Input / Output Characteristics the circuit including logic and the iMotion digital controller. The +5.0V supply should be rated at 100mA and +3.3V supply at 200mA. I/O Pin Description Parameter Min. Typ. Max. Units Reference Voltage 2.475 2.5 2.525 V Drive Current 1.0 - 30 mA Internal Series Resistance - 100 - Ω No FAULT - - 0.2 FAULT 3.3 - - Clear Pulse 1.0 - - µs Clear Pulse Amplitude - - 5.5 0- 2.5 - Max Speed 1 -0 - Max Speed 2 -5.0 - Voltage 14.25 15 15.75 Load Current -100 - mA Voltage 4.75 5.0 5.25 V Load Current -100 - mA Voltage 3.135 3.3 3.465 V Load Current - 200 - mA Pin 29 Pin 7 V V Pin 24 Pin 26 RED, GREEN FAULT SPEED COMMAND +15V +5.0V 3.3V Pins 30, 31 Pins 32, 33 |
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