Specifications

Figure 2 : Turn On/Off Timing
3.4 Remote On/Off Control : PSON#
The PSON# signal is required to remotely turn on/off the power supply. PSON# is an
active low signal that turns on the +5V, +3.3V, +12V and –12V power rails. When this
signal is not pulled low by the system, or left open, the outputs (except the +5VSB and
V bias) turn off. This signal is pulled to a standby voltage by a pull-up resistor internal
to the power supply.
Table 13 – PWOK Signal Characteristic
3.5 Efficiency
The efficiency is specified at 50% and 20% loading conditions to help reduce system
power consumption at typical system loading conditions.
Accepts an open collector/drain input
from the system. Pull-up to VSB located
in power supply.