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VNF9D5F Datasheet(PDF) 86 Page - STMicroelectronics

Part # VNF9D5F
Description  2-channel high-side driver with STi²Fuse protection for automotive power distribution applications
PDF  108 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VNF9D5F Datasheet(HTML) 86 Page - STMicroelectronics

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Table 72. Component values
Reference
Value
Comment
RVDD
330 Ω for VDD = 5 V
150 Ω for VDD = 3.3 V
Device logic protection
CVCC
100 nF
Battery voltage spikes filtering mounted close to IC
RCSN
2.7 kΩ
Microcontroller protection during overvoltage and reverse
polarity
RSCK
2.7 kΩ
Microcontroller protection during overvoltage and reverse
polarity
RSDI
2.7 kΩ
Microcontroller protection during overvoltage and reverse
polarity
RSDO2
220 Ω
Microcontroller protection during overvoltage and reverse
polarity
RSDO1
50 Ω
Optional
D1
BAT54
Microcontroller protection during overvoltage and reverse
polarity
RPWM_CLK,
RSTDBY_NOT
2.2 kΩ
Microcontroller protection during: overvoltage, reverse polarity,
and loss of GND
RDI0
15 kΩ
Microcontroller protection during: overvoltage, reverse polarity,
and loss of GND
RDI1
15 kΩ
Microcontroller protection during: overvoltage, reverse polarity,
and loss of GND
D2
Suppressor 20 V
Negative transient protection.
D3
Suppressor 36 V
Overvoltage protection.
RGND
4.7 kΩ
-
DGND
BAS21 for VDD = 5 V,
Schottky (that is, BAT54-Y) for VDD = 3.3 V
Reverse polarity protection. Usage of Schottky or standard
diode is dependent on VDD
DVCC
Schottky 40 V
Typical components used in the applicative environment are
1N5822 or STPS1H100
CDD
1 nF
RDD
100 Ω
CREG
2.2 μF
RREG
120 Ω
VNF9D5F
Application schematics
DS13946 - Rev 8
page 86/108



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