NXP Semiconductors S32K3X4EVB-Q172 - Page 14

NXP Semiconductors
S32K3X4EVB-Q172 HWUM
S32K3X4EVB-Q172 | S32K3X4EVB-S172 - Hardware User Manual
S32K344EVB-Q172 | -S172 HWUM
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NXP Semiconductors
REV A – 10/2021
Page 14 of 31
Table 7. S32K3X4EVB-Q172 – VDD_HV_B
Reference
Jumper Position
Description
Comments
J19
1-2
P3V3 (+3.3V from the FS26) is selected for the
VDD_HV_B_MCU reference
Default closed
3-4
VDD_HV_A_MCU is routed to VDD_HV_B_MCU
reference
5-6
VDD_HV_B domain is isolated and unpowered
J15
1-2
VDD_HV_B is routed to VDD_HV_B_MCU reference.
This jumper can be used to current measurements in the
VDD_HV_ domain
Default closed
OPEN
Without this jumper the VDD_HV_B domain will not be
powered. The S32K344 MCU will be turned-OFF
7.4.2 S32K3X4EVB-Q172 | -S172 – VREFH
The VREFH reference of the S32K344 MCU is directly routed to the VDD_HV_A_MCU domain.
Figure 10. S32K3X4EVB-Q172 | -S172 – VREFH power supply
TP14
SILK = VREFH_MCU
1
NC
U7
BZX84-A5V6
1
3
2
GND
R110
DNP
0402
VREFH_MCU
R104
0
0402
VDD_HV_A_MCU
C29
1UF
GND
C22
1000pF
0402
C108
0.22UF
0402