VND5012AK STMicroelectronics, VND5012AK Datasheet - Page 15

• Manufacturer Part Number: VND5012AK
• Description: Double Channel High Side Driver With Analog Current Sense For Automotive Applications
• Manufacturer: STMicroelectronics

VND5012AK-E
3
Figure 24. Application schematic
3.1
3.1.1
Note: Channel 2 has the same internal circuit as channel 1.
µC
+5V
Application Information
GND Protection Network Against Reverse Battery
Solution 1:
Resistor in the ground line (R
The following is an indication on how to dimension the R
1.
2.
where -I
maximum rating section of the device datasheet.
Power Dissipation in R
P
This resistor can be shared amongst several different HSDs. Please note that the value of
this resistor should be calculated with formula (1) where I
maximum on-state currents of the different devices.
Please note that if the microprocessor ground is not shared by the device ground then the
R
values. This shift will vary depending on how many devices are ON in the case of several
high side drivers sharing the same R
D
GND
= (-V
R
R
C
will produce a shift (I
GND
GND
ext
CC
GND
R
R
R
)
prot
≤ 600mV / (I
≥ (−V
2
prot
prot
/R
R
is the DC reverse ground pin current and can be found in the absolute
SENSE
GND
CC
) / (-I
GND
CURRENT SENSE
S(on)max
GND
CS_DIS
INPUT
S(on)max
(when V
)
GND
).
only). This can be used with any type of load.
* R
CC
GND
<0: during reverse battery situations) is:
GND
.
V
GND
) in the input thresholds and the status output
R
GND
GND
V
GND
S(on)max
CC
D
resistor.
GND
OUTPUT
becomes the sum of the
Application Information
D
15/22
ld