STEVAL-IHM021V1 STMicroelectronics, STEVAL-IHM021V1 Datasheet - Page 16

• Manufacturer Part Number: STEVAL-IHM021V1
• Description: BOARD EVAL L6390/STD5NK52ZD
• Manufacturer: STMicroelectronics
• Type: Motor / Motion Controllers & Driversr

Specifications of STEVAL-IHM021V1

• Main Purpose: Power Management, Motor Control
• Embedded: Yes, MCU, 32-Bit
• Utilized Ic / Part: L6390, STD5NK52ZD-1
• Primary Attributes: 3-Ph PMSM, 100 W 3-Phase Inverter, 110 ~ 230VAC
• Secondary Attributes: Field-Oriented Control (FOC) of Sinusoidal-Shaped Back-EMF
• Input Voltage: 110 V to 230 V
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6390, STD5NK52ZD-1
• Other names: 497-8404

Board schematics
8.1
8.2
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Gate driving circuit
Figure 9
During the turn-on phase, the power MOSFET gate capacitances are charged through 50-Ω
resistors while the turn-off is secured by the D3 diode (or similar).
Use of the L6390D device always guarantees a minimum adjustable dead time (DT). This
dead time is applied to the HVG and LVG outputs whenever a dead time shorter than DT is
present on the HIN and LIN inputs. The R12, R32 and R52 values being equal to 47 kΩ,
set the minimum dead time to approximately 600 nsec.
Overcurrent protection
A hardware overcurrent protection has been implemented on the board taking advantage of
the comparator integrated inside the L6390D. The internal connection between the
comparator output and the shutdown block makes the intervention time of the overcurrent
protection extremely low, slightly above 100 nsec.
Figure 9.
Figure 10. Overcurrent protection
shows the circuit used to turn the power MOSFETs on and off.
Detailed gate driving circuit
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