VN920B5HTR-E STMicroelectronics, VN920B5HTR-E Datasheet - Page 17

• 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

VN920B5-E
3.1.2
3.2
3.3
Solution 2: diode (D
A resistor (R
inductive load.
This small signal diode can be safely shared amongst several different HSDs. Also in this
case, the presence of the ground network produces a shift (≈600mV) in the input threshold
and in the status output values if the microprocessor ground is not common to the device
ground. This shift not varies if more than one HSD shares the same diode/resistor network.
Series resistor in INPUT and STATUS lines are also required to prevent that, during battery
voltage transient, the current exceeds the absolute maximum rating.
Safest configuration for unused INPUT and STATUS pin is to leave them unconnected.
Load dump protection
D
V
that are greater than the ones shown in the ISO 7637-2: 2004(E) table.
MCU I/Os protection
If a ground protection network is used and negative transient are present on the V
the control pins are pulled negative. ST suggests to insert a resistor (R
the microcontroller I/Os pins to latch-up.
The value of these resistors is a compromise between the leakage current of microcontroller
and the current required by the HSD I/Os (Input levels compatibility) with the latch-up limit of
microcontroller I/Os.
-V
Calculation example:
For V
5 kΩ ≤ R
Recommended values: R
CC
ld
CCpeak
is necessary (Voltage Transient Suppressor) if the load dump peak voltage exceeds the
max DC rating. The same applies if the device is subject to transients on the V
CCpeak
/I
prot
latchup
= -100 V and I
GND
≤ 65 kΩ.
≤ R
= 1 kΩ) should be inserted in parallel to D
prot
≤ (V
prot
GND
latchup
OH
=10 kΩ.
Doc ID 17608 Rev 1
) in the ground line
µ
C
≥ 20 mA; V
- V
IH
- V
GND
OH
) / I
µ
C
IHmax
≥ 4.5 V
GND
if the device drives an
Application information
prot
) in line to prevent
CC
CC
line,
line
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