LX7720MLF-DB

The following are key features of the LX7720MLF-DB Evaluation Board:

• A linker board supports direct connection to FPGA evaluation boards with an FMC-HPC connector such as RTG4 FPGA DEV-KIT, RT PolarFire FPGA RTPF-DEV-KIT, PolarFire FPGA MPF300-EVAL-KIT, and SmartFusion2 SoC FPGA M2S150-ADV-DEV-KIT
• A 2x20 0.1" pin header provides alternative access to signals for connection to non-FPGA control systems
  
• Linker boards support direct connection to the SAMRH71F20-EK evaluation kit and SAMRH71-TFBGA-EK evaluation kit for the radiation hardened SAMRH71F20 MCU
• A linker board supports direct connection to the SAMRH707F18-EK evaluation kit for the radiation hardened SAMRH707F18 MCU
• Includes the eight NFETs and output current sensing for the full four half-bridges supported by the LX7720, allowing direct connection to typically 3-phase PMSM and BLDC motors, or 2-phase bipolar stepper motors
• Space grade hi-reliability 1N5809US power diodes are fitted for the four high-side NFET charge pumps to help evaluating half-bridge performance in flight 
• The eight NFETs on board can be switched out and surplanted by user-fitted alternative NFETs on the underside of the board. The pads suit Microchip's range of JANS-qualified, SMD-05 surface mount power MOSFETs, such as the JANSR2N7587U3 100V, 22A NFET
• Each of the four half-bridges is controlled by a switch allowing any half-bridge to controlled manually, interrupting the control signals to just that half-bridge
• On-board test waveform generators provide 24kHz and full-step stepper waveforms to be switched to the half-bridges for evaluation purposes. A small stepper motor is provided with the kit, allowing LX7720 motor drive operations to be examined without any firmware development
• The motor VMPS supply is switchable between the either included 24V DC adapter or an external 0V to 60V supply
• On-board regulators generate a switchable 12V or 15V VGS gate drive supply, the 5V VCC analog supply, and the  3.3V VDD logic supply required by the LX7720
• Any internal regulator can be switched out and an alternative external supplies used instead
• The resolver/LVDT primary drive supply is switchable between VGS and an external supply
• All supplies (VMPS, VGS, VDD, VCC, and resolver/LVDT) are supplied through current sensing resistors for easy current monitoring
• The LX7720's MOD_CLK clock is switchable between an on-board 25MHz oscillator module and the 2x20 0.1" pin signals header, to be provided by an external FPGA, MCU, or other source
  
• The LX7720's CP_CLK clock is  is switchable between an on-board 195kHz oscillator module and the 2x20 0.1" pin signals header, to be provided by an external FPGA, MCU, or other source
• A 0.1" pin header provides access to the LX7720's six BLI bi-level comparator inputs. The corresponding six BLO comparator outputs are routed to the 2x20 0.1" pin signals header
• The LX7720's resolver/LVDT primary drive is configured with a balanced LC filter targetting applications using PWM synthesis of a sine drive waveform