STSPIN32G4 datasheet(23/48 Pages) STMICROELECTRONICS

No. de pieza	STSPIN32G4

Descripción Electrónicos	High performance 3-phase motor controller with embedded STM32G4 MCU

PDF	48 Pages

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Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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23 / 48 page

Figure 18. External bootstrap diode configuration

BOOTx

OUTx

x3 bootstrap circuitries

Buck

reg.

COUT

CBOOTx

5.2.5

VDS monitoring protection

The device monitors the VDS of the power stage’s MOSFETs in order to detect anomalous conditions. The VDS of

each MOSFET is compared to a reference threshold (VDSth).

The reference threshold (VDSth) is generated according to the voltage applied to the SCREF pin (VSCREF).

The SCREF voltage must be in the range between 0.2 V to VSCREF,en. If the voltage is above VSCREF,dis, the

protection is disabled.

When enabled, the protection triggers when one of the following conditions occur:

•

GLSx output is high and VOUTx > VDSth,LS for more than tDFSC

•

GHSx output is high and ‘VS – VOUTx’ > VDSth,HS for more than tDFSC

As soon as the protection is triggered, all the gate driver outputs are forced low and the protection is latched. In

this condition all the gate driver outputs are kept low whatever the driving inputs.

The device returns operative (i.e. the failure condition is cleared) forcing all the driving inputs low for at least

tFAULT,reset or setting all bits of the CLEAR register.

STSPIN32G4

Gate drivers

DS13630 - Rev 1

page 23/48

STSPIN32G4 Datasheet(PDF) 23 Page - STMicroelectronics