Custom Power Supplies
Custom Industrial Power Supplies


850 Watt, ATX Power Supply


Product Description

This is a 850 Watt, power factor controlled ATX power supply designed to provide output flexibility to address unbalance ATX loads for a variety of computer based applications.

Product Features

  • PS/2 Size
  • Operating Temperature Range: 0º to +50º C
  • Up to 8 ATX Output Combinations
AC Input
  • Voltage Input Range: 100-240VAC (nominal range)
  • Frequency: 47-63Hz
  • Phase: Single Phase, 2 wire plus ground
  • Typical Input Current: <12A (115Vrms at full load)  
  • Leakage Current: <1mA (AC Line/Neutral to Chassis at 240Vac, 60Hz)
  • Typical Inrush Current: <30A (Cold start at 240Vrms input at 25ºC ambient) 
  • Input Protection: Internal fast blow fuse for over-current protection

Output

Output Rail

Output Voltage Maximum Current

Load Regulation

Line Regulation

Over-Current Protection

Ripple
(mV pk/pk)

V1

+12Vdc 70A

1%

±5%

130% max

120

V1A

+12 Fan 15A

1%

±5%

120

V2

+3.3Vdc 30A

1%

±5%

150% max

50

V2A

+3.3Vdc 30A

1%

±5%

50

V3

+5Vdc 30A

1%

±5%

150% max

50

V3A

+5Vdc 30A

1%

±5%

50

V4

-12Vdc 2A

1%

±5%

120

V5

+5.0 SB 4A

1%

±5%

110 - 125%

50

  • Output Power: 850 Watt (Maximum, continuous)
  • Maximum combined output current for V1 & V1a is 70A
  • The peak current of V1 (+12Vdc) is 77A for 12mSecs
  • Output Ripple/Noise is measured at nominal input; full load; 20MHz bandwidth (Include a 10uF and .1uF cap)
  • Set Point Accuracy: ± 1.0% of Output Voltage (Nominal input; full load; 25°C)
  • Transient Response: The output voltages will remain within regulation limits for load-changing repetition rate is 50Hz to 10KHz, and transient load slew rate 0.5A/us based on step load change of 30%, capacitive load dependent.
  • Overshoot: Turn-on and turn-off overshoot should not exceed 10% over the nominal voltage.

Electrical Characteristics

  • Efficiency: 80% Minimum (Measuring at 115Vrms or 230Vrms at 50% load)
  • Minimum Load: Not Required
  • Turn On Delay:1 second maximum at 120 VAC
  • Hold-Up Time: Minimum 16mS at loss of AC power at low line, full load.
  • Isolation Voltage:
    • Input to Output: 4242Vrms
    • Input to Chassis: 2800Vrms

Protection

  • Over-Voltage Protection: ~113 to 135% of nominal main. Unit latched, recycle AC input to reset at 25°C.
  • Short Circuit: For 5V, 3.3V, 12V, & -12V – Latch off. Auto-Recovery after short circuit condition is removed.
  • Over temperature Protection: The power supply is protected for over temperature conditions with thermal shutdown. Auto-Recovery when temperature returns to normal.
Environmental
  • Operating Temperature: 0º to +50º C (Ambient)
  • Storage Temperature: -40º to 85º C
  • Operating Humidity: 10% to 90% RH, Non-condensing
  • Storage Humidity: 5% to 95% RH, Non-condensing
  • Operating Altitude: Sea-level to 10,000 ft.
  • Conducted EMI: FCC Part 15 and EN55022, Class B
  • Cooling: Fan with variable speed control

Safety

  • cUL: UL60950 (replaced by cTUVus)
  • TUV: EN60950-1
  • CB: IEC6950-1: 2006 (2nd Edition)

EMC Directive

  • Immunity: EN55024: 1998+A1: 2001+A2: 2003
  • EN61000-3-2: 2006 Class D
  • EN61000-3-3: 1995+A1: 2001+A2: 2003
  • IEC61000-4-2, 4-3, 4-4, 4-5, 4-6 Criterion A
  • IEC61000-4-11: Criterion A/B/B

Mechanical

  • Outline Dimensions: ~150mm X 140mm X 86mm (W X L X H)
  • Weight: ~1.75 lbs.
  • AC Input Connector: IEC320 C14
  • Output Connector: Configurable – 24Pin, 4-pin, 6-pin

Controls and Alarms

  • Power Good: PWR_OK is +5V TTL compatible
  • DC Soft Start: PS_ON is an active-low, TTL compatible signal.
  • Power Sequencing:  +5V and +12V output up, 3.3V within 20mSec.
  • DC Good Signal: N/A

Notes

  • Product specifications subject to change without notice.
  • All rights reserved. Contents of this document may not be reproduced in any form without the prior written permission of DSC Power Solutions.
  • The information and specifications contained in this document are believed to be correct and accurate at the time of publication. DSC Power Solutions, Inc. accepts no responsibility for consequences arising from printing errors or inaccuracies pertaining to any use or application of this document.



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