Nuvo-2500 Series User’s Manual
Copyright © 2015 Neousys Technology Inc. All Right Reserved.
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for the system (e.g. a normal shutdown process for Windows system).
10. Nuvo-2510VTC is completely shut down.
11. As MCU detects system is off, it turns off the standby power for Nuvo-2510VTC, and
then operates in low power mode again (< 2mW power consumption).
In addition to the typical timing correlation, the ignition power control module offers some
further features to make Nuvo-2510VTC more reliable for in-vehicle applications.
Low battery detection
The ignition power control module is capable to continuously monitor the voltage of DC
input while system is running. If the detected input voltage meets the low battery voltage
criteria for over 60 seconds, it will shut down the system automatically. In mode 2 to 6, the
shutdown process will be initiated if the input voltage is less than 9V or keeps in the range
between 16V and 18V for over 60 seconds.
Guarded power-on/power-off delay duration
If ignition signal goes inactive during the power-on delay duration, the ignition power control
module will cancel the power-on delay process and go back to idle status. Likewise if
ignition signal goes active during the power-off delay duration, the ignition power control
module will cancel the power-off delay process and keep the system running.
System hard-off
In some cases, system may be failed to normally shutdown via a soft-off operation due to
system/application halts. The ignition power control module on Nuvo-2510VTC offers a
mechanism called “hard-off” to handle this unexpected condition. By detecting the system
status, it can determine whether the system is normally shutdown. If not, the ignition power
control module will compulsively cut off the system power 10 minutes after the power-off
delay duration.
Smart off-delay
The ignition power control module on Nuvo-2510VTC offers mode 6 which have very long
power-off delay duration for applications require some off-line processing after vehicle is
stopped. In these two modes, the ignition power control module will automatically detect the
system status during the power-off delay duration. If the system is shutdown (by the
application software) in prior to power-off delay expired, it will cut off the system power
immediately to prevent further consumption of battery power.
Parameters setting in BIOS