VN02NPT STMicroelectronics, VN02NPT Datasheet - Page 5

• Manufacturer Part Number: VN02NPT
• Manufacturer: STMicroelectronics

Specifications of VN02NPT

• Switch Type: High Side
• Power Switch Family: VN02NPT
• Power Switch On Resistance: 400mOhm
• Output Current: 6A
• Number Of Outputs: Single
• Mounting: Surface Mount
• Supply Current: 15mA
• Package Type: PPAK
• Operating Temperature (min): -40C
• Operating Temperature (max): 150C
• Operating Temperature Classification: Automotive
• Pin Count: 4 +Tab
• Power Dissipation: 46W
• Lead Free Status / RoHS Status: Supplier Unconfirmed

ELECTRICAL CHARACTERISTICS (cont’d)
Table 8. Protections and Diagnostics
Note: 3. Status determination > 100 ms after the switching edge.
FUNCTIONAL DESCRIPTION
The device has a diagnostic output which
indicates open circuit (no load) and over
temperature conditions. The output signals are
processed by internal logic.
To protect the device against short circuit and
over-current condition, the thermal protection
turns the integrated Power MOS off at a minimum
junction temperature of 140 °C. When the
temperature returns to about 125 °C the switch is
automatically turned on again.
In short circuit conditions the protection reacts with
virtually no delay, the sensor being located in the
region of the die where the heat is generated.
PROTECTING THE DEVICE AGAINST
REVERSE BATTERY
The simplest way to protect the device against a
continuous reverse battery voltage (-26V) is to
insert a Schottky diode between pin 1 (GND) and
ground, as shown in the typical application circuit
(Figure 7).
Symbol
V
V
V
STAT
T
SCL
I
I
I
t
T
USD
TSD
OV
AV
OL
sc
R
(3)
(3)
Status Voltage Output
Low
Under Voltage Shut Down
Status Clamp Voltage
Switch-off Time in Short
Circuit Condition at Start-
Up
Over Current
Average Current in Short
Circuit
Open Load Current Level
Thermal Shut-down
Temperature
Reset Temperature
Parameter
I
I
I
R
R
R
STAT
STAT
STAT
LOAD
LOAD
LOAD
= 1.6 mA
= 10 mA
= –10 mA
< 10 mΩ;Tc = 25 °C
< 10 mΩ –40 ≤ T
< 10 mΩ; Tc = 85 °C
Test Conditions
The consequences of the voltage drop across this
diode are as follows:
– If the input is pulled to power GND, a negative
– The undervoltage shutdown level is increased
If there is no need for the control unit to handle
external analog signals referred to the power
GND, the best approach is to connect the
reference potential of the control unit to node (1)
(see application circuit in Figure 8), which
becomes the common signal GND for the whole
control board.
In this way no shift of V
place and no negative voltage appears on the
INPUT pin; this solution allows the use of a
standard diode, with a breakdown voltage able to
handle any ISO normalized negative pulses that
occurs in the automotive environment.
voltage of -V
thresholds and V
respect to power GND).
by V
c
≤ 125 °C
F
.
F
is seen by the device. (V
STAT
Min.
140
125
5
are increased by V
IH
VN02NSP/VN02NPT
, V
Typ.
–0.7
6.5
1.5
0.9
6
IL
and V
Max.
0.4
28
70
5
STAT
IL
Unit
F
mA
takes
ms
°C
°C
, V
V
V
V
V
A
A
with
5/12
IH