DSP56F803EVM Freescale Semiconductor, DSP56F803EVM Datasheet - Page 31

• Manufacturer Part Number: DSP56F803EVM
• Description: KIT EVALUATION FOR DSP56F803
• Manufacturer: Freescale Semiconductor

Specifications of DSP56F803EVM

• Processor To Be Evaluated: 56F803
• Data Bus Width: 16 bit
• Interface Type: RS-232, JTAG
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

2.14.1 UNI-3 Motor Protection Logic
The UNI-3 DC Bus Over-Voltage signal is connected to the controller’s PWM group’s fault
input, FAULT0. The UNI-3 DC Bus Over-Current signal is connected to the device’s PWM
group’s fault input, FAULT1. Additionally, the UNI-3 DC Bus Over-Voltage and Over-Current
analog signals are connected to two A/D inputs, AN0 and AN1, respectively.
contains the diagram of the DC Bus Over-Voltage and DC Bus Over-Current circuit for the
UNI-3 interface.
Freescale Semiconductor
Figure 2-11. DC Bus Over-Voltage and Over-Current Detection Schematic Diagram
V_sense_DCB
I_sense_DCB
DC BUS CURRENT SENSE
DC BUS VOLTAGE SENSE
+5.0V
Technical Summary, Rev. 5
+5.0V
+5.0V
+5.0V
+
–
+
–
LM393
LM393
+3.3V
+3.3V
Figure 2-11
FAULT1
FAULT0
Motor Protection Logic
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