VN820-12-E STMicroelectronics, VN820-12-E Datasheet - Page 19

• Manufacturer Part Number: VN820-12-E
• Description: IC DRIVER HI SIDE 9A PENTAWATT-5
• Manufacturer: STMicroelectronics
• Type: High Sider

Specifications of VN820-12-E

• Input Type: Non-Inverting
• Number Of Outputs: 1
• On-state Resistance: 40 mOhm
• Current - Output / Channel: 9A
• Voltage - Supply: 5.5 V ~ 36 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Through Hole
• Package / Case: Pentawatt-5 (Straight Leads, Staggered Depth)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Peak Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

VN820-E
3.1.2
3.2
3.3
3.4
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 ( 600 mV) 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 µC I/Os pins to latch-up.
The value of these resistors is a compromise between the leakage current of C and the
current required by the HSD I/Os (Input levels compatibility) with the latch-up limit of C
I/Os.
-V
Calculation example:
For V
5 k
Recommended values: R
Open-load detection in off-state
Off-state open-load detection requires an external pull-up resistor (R
OUTPUT pin and a positive supply voltage (V
microprocessor.
The external resistor has to be selected according to the following requirements:
1.
2.
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
no false open-load indication when load is connected: in this case we have to avoid
V
V
no misdetection when load is disconnected: in this case the V
V
CCpeak
OUT
OUT
OLmax
R
/I
prot
latchup
= (V
to be higher than V
= - 100 V and I
; this results in the following condition R
GND
65 k .
PU
= 1k
/ (R
R
prot
L
+R
should be inserted in parallel to D
prot
PU
GND
(V
latchup
OH
)) R
=10 k .
Olmin
Doc ID 10890 Rev 6
) in the ground line
µ
C
L
-V
< V
; this results in the following condition
IH
20 mA; V
Olmin
-V
GND
.
) / I
OH
PU
IHmax
µ
) like the +5 V line used to supply the
C
PU
4.5 V
< (V
GND
PU
– V
if the device drives an
OLmax
OUT
Application information
PU
has to be higher than
prot
) connected between
) / I
) in line to prevent
L(off2)
.
CC
CC
line,
line
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