User`s manual

5
6
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
INPUT VOLTAGE 125 VAC
OUTPUT CURRENT 6 AMPS PEAK
DRIVER PLATE TEMPERATURE 70° C
STORAGE TEMPERATURE -40° TO +125° C
INPUT CURRENT (PINS 5,6,8,9) 15 mA
ELECTRICAL SPECIFICATIONS (TA=25EEC, V+ = 75VDC)
ITEM TEST MIN TYP MAX UNITS
CONDITION
Input Voltage 105 115 125 V
Phase Output Current RMS 1 4 A
Phase Output Current Peak 1.4 6 A
Quiescent Current Outputs Floating 13 mA
Active Power Iout=4 Amps 9 W
Dissipation RMS
Input Sink Current Input Pins 7 mA
5,6,8,9
Input Forward Voltage 1.4 1.7 V
+5Vdc Output Output Pin 10 5 V
+5Vdc Output Output Pin 10 50 mA
Input Reverse 5 V
Breakdown Voltage
Clock Pulse Width Off Time 215 nS
Clock Pulse Width On Time 50 nS
Direction Change Execution Time 100 nS
Microstep Select Execution Time 100 nS
Change
Reset Pulse Width 500 nS
DETERMINING OUTPUT CURRENT
The output current for the motor used when microstepping is determined
differently from that of a halfstep/fullstep unipolar driver. In the DPD60001
Driver Pack, a sine/cosine output current is used in rotating the motor. The
output current for a given motor is determined by the motors current rating and
the configuration for how the motor is hooked up. The current adjustment
potentiometer (Running Current) is used to set the output current of the
DPD60001. This sets the peak output current of the sine/cosine waves. The
specified motor current (which is the RMS value) is multiplied by a factor of 0.7,
1.0, or 1.4 depending on the motor configuration (series, half-coil, or parallel).
SETTING OUTPUT CURRENT
The output current on the DPD60001 is set by the Running Current
Potentiometer.
This resistance determines the per Phase Peak output current of the driver.
Running Current Current
Potentiometer Setting (Amps)
1 1.4
2 2
3 3
4 4
4 4.5
5 5
5.5 5.5
TABLE 3: Running Current Settings