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VNF1248F Datasheet(PDF) 65 Page - STMicroelectronics

Part # VNF1248F
Description  High-side switch controller with intelligent fuse protection for 12 V, 24 V and 48 V automotive applications
PDF  79 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VNF1248F Datasheet(HTML) 65 Page - STMicroelectronics

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14
Application information
Figure 21. Application diagram (MCU 3.3 V)
VNF1248F
VBATT
CP
VS
EXT_LDO
GND
V3V3
CP
CS2
CP2P
CP2M
CP1P
CP1M
VSPI
DIAG
HWLO
SPI
4
VBATT
CP1
CP2
OUTST
DIN
VS
RPD
RPROT(VSPI)
RPU
CVSPI
CV3V3
CS1
HOST MICRO
3.3V Voltage
regulator
RPROTB
RPROTB
RPROTB
RPROT(SPI)
RSENSE
SENSE_N
SENSE_P
LOAD
HS_GATE
NTC
RNTC
RREF
OUT
RGATE
D1
NTC_M
TEST2
TEST1
RPROTA
RPROTA
470nF
EXT_REG 3.3V
Optional circuit to externally
supply EXT_LDO pin. If used,
remove the pull-down on EXT_LDO.
RPROTA
VSENSE
Figure 22. Application diagram (MCU 5 V)
VNF1248F
VBATT
CP
VS
EXT_LDO
GND
V3V3
CP
CS2
CP2P
CP2M
CP1P
CP1M
VSPI
DIAG
HWLO
SPI
4
VBATT
CP1
CP2
OUTST
DIN
VS
RPD
RPROT(VSPI)
RPU
CVSPI
CV3V3
CS1
HOST MICRO
5V Voltage
regulator
RPROTB
RPROTB
RPROTB
RPROT(SPI)
RSENSE
SENSE_N
SENSE_P
LOAD
HS_GATE
NTC
RNTC
RREF
OUT
RGATE
D1
NTC_M
TEST2
TEST1
RPROTA
RPROTA
470nF
EXT_REG 3.3V
Optional circuit to externally
supply EXT_LDO pin. If used,
remove the pull-down on EXT_LDO.
RPROTA
RA
RB
VSENSE
VNF1248F
Application information
DS14109 - Rev 7
page 65/79



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