Function and Features
Copyright© Itech Electronics Co., Ltd. 50
Supply Voltage Transient Drop
Simulate the affect from short circuit when fuse element of another circuit is
melt. Detect the function status of the DUT at transient drop of Voltage.
When the given test pulse is applied at all input terminals of the DUT, the
rise and fall time between U
low
and 16V level shall not be longer than 10ms.
Reset Performance at Transient Drop of Voltage
Detect the reset performance of the DUT at different Voltage drops.
Applicable for devices with reset function (for example, device installed with
one or several micro controllers)
As shown in the figure, apply test pulse and detect the reset performance of
the DUT.
The supply voltage drops from U
low
to 0.95U
low
by 5% and keeps for 5s, and
then rise to U
low
and keep for at least 10s for function test. Then, drop
Voltage to 0.9U
low
, and so on. As shown in the figure, drop the voltage from
U
low
to 0V by 5% and raise the voltage to U
low
. The Rise and Fall time shall
be between 10ms and 1s.
Start-up Characteristics
Detect DUT characteristics before and after vehicle startup.
Apply the startup characteristic parameters as shown in the figure and table
t: time (in s)
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