Level 2
With classic voltage-controlled gate driver, series resistors or a network of resistors / diode at the gate of the external MOSFETs are required to control the gate charge and the discharge currents, and therefore the MOSFET switching times.
With the current-controlled gate drivers of the TLE956x/TLE9185, series resistors at the gate of the external MOSFETs are not required.This reduces the bill of material and the required PCB area.
For more information, refer to the elearning about the advanced motor control solutions.
A series resistor might be used in order damp eventual oscillations (not observed so far in Infineon evaluations). For this purpose, it is recommended to test first with a 0 Ohm resistor. If no oscillations are observed, then the gate resistors can be removed for an updated board version.
With the current-controlled gate drivers of the TLE956x/TLE9185, series resistors at the gate of the external MOSFETs are not required.This reduces the bill of material and the required PCB area.
For more information, refer to the elearning about the advanced motor control solutions.
A series resistor might be used in order damp eventual oscillations (not observed so far in Infineon evaluations). For this purpose, it is recommended to test first with a 0 Ohm resistor. If no oscillations are observed, then the gate resistors can be removed for an updated board version.
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