3.5.3.Input Transient, and Reverse Voltage Protection
The DSATX has components that prevent the DSATX from being damaged from the harsh conditions
present in a motor vehicle. Transients above 24 volts (Load Dump) are shunted by the protection components.
Reverse voltage conditions will blow the fuse before damaging components on the DSATX.
The DSATX is equipped with a temperature sensor that monitors the ambient temperature around the
DSATX. The DSATX is programmed to only allow operation while the temperature is inside the window of -10c
to 55c. If outside this range, the LED will flash 4 times and the DSATX will not provide power. Once the out of
range condition goes away, the DSATX will behave like ACC was applied right at that point. This protects the
DSATX, and the computer hardware from temperature extremes and potentially damaging over and under
3.5.5.Output Voltage Protection/Monitoring
The DSATX is constantly monitoring the Output Rails while operating. If the rails are ever overloaded,
or shorted to ground or each other, the DSATX will detect that within 50ms and turn off all outputs and go into
the “Fault” state. This will protect the computer hardware in the event that the DSATX is over loaded, or if the
DSATX should fail for any reason. When rails are shorted, for example 5 volts to 12 volts, other power
supplies on the market will not detect an over voltage condition, which will damage 5-volt rated computer
3.5.6.Output Current Limiting
The output rails of the DSATX are designed to current limit such that they will begin to sag before the
components are overloaded beyond their manufacturer rating in a way that could cause a fire or meltdown.
The current limiting will be detected by the continuous output voltage monitoring and trigger a fault condition.