DS1200-3 ARTESYN, DS1200-3 Datasheet - Page 27

• Manufacturer Part Number: DS1200-3
• Description: AC/DC Power Supply Single-OUT 12V 98.4A 1.2KW 30-Pin
• Manufacturer: ARTESYN

Specifications of DS1200-3

• Input Voltage: 90 to 264 V
• Output Voltage: 12 V
• Maximum Current Rating: 15(rms) A
• Maximum Output Current: 98.4 A
• Number Of Outputs: 1
• Maximum Output Power: 1200 W
• Efficiency: 89(Min) %
• Input Frequency: 47 to 63 Hz
• Operating Temperature: -10 to 70 °C

PS_SEATED – (pin A4)
This signal pin is connected to Main Output Return inside the power supply via a 220 ohm resistor. This pin
is to be pull high on the system side by a resistor of 4.7K or higher. A TTL logic LOW indicates the power supply is
inserted and seated into the system power supply connector. A Logic HIGH indicated the removal of the power supply.
StandBy Output, StandBy Output Return – (pins A5, A6, B5, B6, C5, C6, D5, D6)
The DS1200-3 provides a regulated 3.3 volt 6 amp (or 5.0 volt 4 amp) auxiliary output voltage to power critical circuitry that
must remain active regardless of the on/off status of the power supply’s main output. The Standby Output (V
available whenever a valid AC input voltage is applied to the unit. The StandBy Output is independently short circuit
protected and is referenced to the StandBy Output Return pins (A6, B6, C6, D6).
AC_OK – (pin B1)
The AC_OK signal is a normally LOW level TTL logic signal when the AC input voltage is within the allowable limits. A
TTL logic HIGH level, with a 5mS early warning will be sent before the main output loses regulation. This signal is an open
drain output internally pulled up in the power supply to StandBy Output via a 1K ohm resistor. It is capable of driving the
output below 0.4V with a load of 4mA.
Main Output Current Share – (pin B3)
The DS1200-3 supports active current sharing through a single wire connection between the power supplies. This
input/output signal pin allows two or more power supplies to share the main output load current to increase the overall
power capability or to operate the units in a N+1 configuration for redundancy purposes.
The voltage of this signal will be a linear slope from no load to full load. At 49.2A, the output of the Main Output Current
Share pin will be between 3.90 and 4.10V. At 98.4A output current, this signal will be between 5.90 and 6.10V.
When two or more power supplies are connected and operating in parallel and each is delivering 40-100% of its rated
output to the load, the power supplies will current share within 5% accuracy. When supplying light loads between 10% and
40% of its rated load, the power supplies will share within 20% accuracy. (Below 10% load, there is no guarantee of
output current sharing). If any power supply is hot swapped, no glitch will occur that violates the regulation limits of the
power supply defined in this specification.
SB
Rev.10.03.30_#0.1
DS1200-3 Series
) voltage is
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