STEVAL-IHM021V1 STMicroelectronics, STEVAL-IHM021V1 Datasheet - Page 14

• 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

Smart shut down function
7
14/22
Smart shut down function
L6390 integrates a comparator committed to the fault sensing function. The comparator has
an internal voltage reference V
input is available on pin 10. The comparator input can be connected to an external shunt
resistor in order to implement a simple over-current detection function. The output signal of
the comparator is fed to an integrated MOSFET with the open drain output available on pin
2, shared with the SD input. When the comparator triggers, the device is set in shut down
state and both its outputs are set to low level leaving the half-bridge in tri-state.
Figure 6.
the driver outputs are set in SD state
Smart shut down timing waveforms
immediately after the comparator
triggering even if the SD signal
open drain gate
the lower input threshold
HVG/LVG
(internal)
HIN/LIN
SD/OD
comp
threshold
threshold
Vref
upper
CP+
lower
has not yet reach
Fast shut down:
CONTROLLER
Doc ID 14493 Rev 5
FROM/TO
ref
connected to the inverting input, while the non-inverting
1
SHUT DOWN CIRCUIT
V
BIAS
R
C
SD
SD
SD/OD
PROTECTION
real disable time
TIME CONSTANTS
R
ON_OD
1
2
= (R
= R
SD
ON_OD
C
SMART
LOGIC
SD
// R
SD
2
SD
)
C
SD
L6390