Hardware Description And Configuration; Table 1. Connector Description - STMicroelectronics EVALSTGAP4S User Manual

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Hardware description and configuration

The EVALSTGAP4S is provided with a ready-to-use hardware configuration.
The power stage is composed by two SiC MOSFETs in half-bridge configuration with a small capacitor bulk
connected to the HV BUS:
• SiC MOSFETs: SCTH100N65G2-7AG 650 V 20 mΩ - H7PAK
• Bulk capacitor: (2.2 uF//470 nF//470 nF) - 630 V (see
• High-voltage rail up to 520 V: limited by MOSFETs and capacitor ratings
• Maximum working voltage across isolation: 1200 V
The EVALSTGAP4S is provided with a linear regulator supplied by the VCC voltage that generates the 3.3 V
supply for the low-voltage side of both the STGAP4S present on the board. The VCC voltage is also used to
supply the two isolated flyback power supplies (one for each driver) that are driven by the controller integrated in
each STGAP4S and generates the positive and negative voltages for the driving side. Thus, only the VCC voltage
is needed to fully supply the board (except for the HV BUS voltage):
• Only VCC voltage needed to supply the board
• On-board 3.3 V linear regulator for the LV side supply (common to both drivers)
• Isolated flyback for HV +18/-5 V driving supply (one for each driver)
The STGAP4S features an SPI interface that is used to set the device parameters, enable or disable the device
functions, and access the advanced diagnostic. The EVALSTGAP4S is suitable to be used in combination with
STEVAL-PCC009V2 (with the dedicated firmware STSW-STGAP4_FW.hex installed) and STSW-STGAP4 GUI
software. However, it is also possible to operate the STGAP4S without using the SPI interface. In this case, the
driver works with the default configuration values and protections.
Name
J1 Power supply
J2 Board extension
J3 Control signal
J4 Board extension
J5 Power supply
J6 Power supply
J9 Control signal
J10 Control signal
HV Power connection
OUT Power connection
GNDPWR Power connection
UM3153 - Rev 1
Table 1.
Type
VCC supply voltage to the flyback and to the 3.3V on-board linear regulator. Optional 3V3IN
supply for the logic control side.
Connection to an optional slave EVALSTGAP4S board
PWM logic inputs
Connection to an optional master EVALSTGAP4S board
Optional external VH and VL supplies for the HV side of the LOW-side driver
Optional external VH and VL supplies for the HV side of the HIGH-side driver
SPI and diagnostic interfacing.
Suitable for STEVAL-PCC009V2 interface board.
Connector for SPI and diagnostic probing
Plated hole for connection to the positive pole of the high-voltage bus. Drain of the high-side
power MOSFET.
Plated hole for connection to a load. Source of the high-side power MOSFET and drain of the
low-side power MOSFET.
Plated hole for connection to the negative pole of the high-voltage bus. Source of the low-side
power MOSFET.
Hardware description and configuration
Figure 16 for details)
Connector description
Function
UM3153
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