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VND9012AJ Datasheet(PDF) 23 Page - STMicroelectronics

Part # VND9012AJ
Description  Double channel high-side driver with current sense analog feedback for automotive applications
PDF  40 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VND9012AJ Datasheet(HTML) 23 Page - STMicroelectronics

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Figure 15. CurrentSense and diagnostic – block diagram
GADG2004171456PS
1
n
R
R
V
MUX
I
I
T
0
VCC
Gate Driver
VCC – OUT
Clamp
Limitation
Current
Power Limitation
Overtemperature
Open-Load in OFF
Short to VCC
K factor
Sense
Current
Control & Diagnostic
shut-down
Undervoltage
Internal Supply
Clamp
VCC – GND
Diagnostic
Fault
SENSEH
CURRENT
MONITOR
GND
INPUT
SEL
SEL
SE
SENSE
PROT
To µC ADC
SENSE
FaultRST
Fault
OUT
OUT
CS
4.4.1
Principle of current sense signal generation
Figure 16. CurrentSense block diagram
INPUT
Vcc
OUT
To uC ADC
RPROT
RSENSE
Main MOS
Sense MOS
Fault
CS
Current sense Switch Block
Current sense
GAPG2307131200CFT
VND9012AJ
CS - analog current sense
DS12727 - Rev 3
page 23/40



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