ITech IT6512C User Manual page 58

Supply Voltage Transient Drop
t: time (in s)
U: voltage (in V)
Reset Performance at Transient Drop of Voltage
Start-up Characteristics
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
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
then rise to U and keep for at least 10s for function test. Then, drop
low
Voltage to 0.9U , and so on. As shown in the figure, drop the voltage from
low
U to 0V by 5% and raise the voltage to U
low
be between 10ms and 1s.
t: time (in s)
Y: U (in %)
low
Detect DUT characteristics before and after vehicle startup.
Apply the startup characteristic parameters as shown in the figure and table
Copyright© Itech Electronics Co., Ltd.
and 16V level shall not be longer than 10ms.
low
to 0.95U by 5% and keeps for 5s, and
low low
. The Rise and Fall time shall
low
Function and Features
50