PSON is an active low TTL compatible signal that turns on the main power rails.
PSON Signal
3.7. Power Good Signal
Power Good, also called PG or PWOK, is an active high TTL compatible
signal.
PG signal is to indicate that all output voltages are in regulation and
ready for use.
Below is for a representation of the timing characteristics of PG signal.
Power Good on delay time
Power Good off delay time
4. Protection
4.1. Over Current Protection
4.1. Over Current Protection
Output
+3.3V
+5V
+12V
4.2. Over Voltage Protection
4.2. Over Voltage Protection
Output
+3.3V
+5V
+12V
4.3. Short Circuit Protection
4.3. Short Circuit Protection
Output
+3.3V
+5V
+12V
4.4.Over Temperature Protection
The power supply would be protected against over temperature condition by
loss of cooling or excessive ambient temperature. The PSU will shutdown in
an OTP condition.
PSU On
LOW (0.8V max.)
g
Min.
Max.
110%
150%
110%
150%
110%
150%
Min.
Max.
3.9V
3.7V
5.7V
13.1V
13.3V
14.5V
Comment
PSU shutdown
PSU shutdown
PSU shutdown
HI (2V min.)
100ms to 500ms
1ms (min.)
PSU shutdown
PSU shutdown
PSU shutdown
4.5V
PSU shutdown
6.5V
PSU shutdown
PSU shutdown
PSU Off
g
Comment
Comment