NXP Semiconductors S32K312EVB-Q172 - 7.5 S32 K312 EVB-Q172 - VREFH

NXP Semiconductors
S32K312EVB-Q172 HWUM
S32K312EVB-Q172 | S32K312EVBQ172ND - Hardware User Manual
S32K312EVB-Q172
S32K312EVBQ172ND
HWUM
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NXP Semiconductors
REV A1 – 01/2022
Page 13 of 25
Table 6. S32K312EVB-Q172 – VDD_HV_A
Reference
Jumper Position
Description
Comments
J18
1-2
P5V0 (+5.0V from the FS26) is selected for the
VDD_HV_A_MCU reference
Default closed
2-3
P3V3 (+3.3V from the FS26) is selected for the
VDD_HV_A_MCU reference
OPEN
VDD_HV_A domain is isolated and unpowered
J10
1-2
VDD_HV_A is routed to VDD_HV_A_MCU reference. This
jumper can be used to current measurements in the
VDD_HV_A domain
Default closed
OPEN
Without this jumper the VDD_HV_A domain will not be
powered. The S32K312 MCU will be turned-OFF
7.5 S32K312EVB-Q172 – VREFH
The VREFH reference of the S32K312 MCU is directly routed to the VDD_HV_A_MCU domain.
Figure 9. S32K312EVB-Q172 – VREFH power supply
cccc
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