VN920B5HTR-E STMicroelectronics, VN920B5HTR-E Datasheet - Page 16

• Manufacturer Part Number: VN920B5HTR-E
• Description: Power Switch ICs - Power Distribution Single Ch High Side SSR 16mOhm 30A 36V
• Manufacturer: STMicroelectronics

Specifications of VN920B5HTR-E

• Product Category: Power Switch ICs - Power Distribution
• Rohs: yes
• Operating Supply Voltage: 5.5 V to 36 V

Application information
3
3.1
3.1.1
16/26
Application information
Figure 19. Application schematic
GND protection network against reverse battery
Solution 1: resistor in the ground line (R
This can be used with any type of load.
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 varies depending on how many devices are ON in the case of several high-
side drivers sharing the same R
If the calculated power dissipation leads to a large resistor or several devices have to share
the same resistor then ST suggests to utilize Solution 2 (see below).
D
GND
= (-V
R
R
+5V
μC
produces a shift (I
GND
GND
GND
CC
≤ 600 mV / (I
≥ (-V
)
2
/ R
is the DC reverse ground pin current and can be found in the absolute
GND
R
CC
R
prot
prot
R
SENSE
) / (-I
GND
GND
S(on)max
S(on)max
(when V
)
INPUT
CURRENT SENSE
Doc ID 17608 Rev 1
GND
)
* R
CC
GND
.
< 0: during reverse battery situations) is:
) in the input thresholds and the status output
V
GND
R
GND
GND
GND
GND
S(on)max
only)
V
CC
resistor.
D
GND
becomes the sum of the
OUTPUT
VN920B5-E
D
ld