UM1756 datasheet(21/49 Pages) STMICROELECTRONICS

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UM1756

Device configuration

This section offers an overview of the basic configuration steps which are required to make

the demonstration board operative.

Warning:

Important - the device configuration is mandatory. The

default configuration is not operative.

Before changing the device configuration verify that the

device is in high impedance status (power stage is disabled).

4.1

Gate drivers

The system allows controlling a wide range of motors - thanks to a large driver's settings

choice.

For details please refer to the AN4354: “L648x devices: gate drivers setup” - application

note available on www.st.com.

The board includes 2 STL30N10F7 - half bridge N-channel MOSFETs. These MOSFETs

presents low RDSon adding high switching performance. Few several settings could by

applied depending on choice of supply voltage motors, EMI tolerance vs. speed of the

communication.

We propose two configurations according to the user choice:



Performance: low power dissipation vs. fast commutation - high electromagnetic

interference.



Recommended: medium power dissipation, commutation and electromagnetic

interference.

Table 6. Settings gate driving

Parameter

Performance solution

(value)

UM1756 Datasheet(PDF) 21 Page - STMicroelectronics