POWER

DS650/DS850

Distributed Power Bulk Front-End

Total Input

650/850 Watts

Power: +3.3 Vdc Standby Output

Wide Range

90 - 264 Vac

Output Voltage: 12, 24 and 48 V

SPECIAL FEATURES

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Active power factor correction

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EN61000-3-2 harmonic compliance

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Inrush control

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1U X 2U form factor

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12 Vdc, 24 Vdc and 48 Vdc output

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Available in +3.3 V and +5.0 V standby

output versions

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No minimum load required

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Hot plug operation

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N + 1 redundant

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Internal OR’ing fets

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Active current sharing (10 - 100% load)

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Built-in cooling fans (40 mm x 28 mm)

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EEPROM for FRU data

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Amber/Green bi-color LED status

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Internal fan speed control

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Fan Fail Tach output signal

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One year warranty

SAFETY

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UL/cUL 60950 (UL Recognized)

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NEMKO+ CB Report EN60950

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EN60950

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CE Mark

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China CCC

Electrical Specifications

Input

Input range

90 - 264 Vac (wide range)

Frequency

47 - 63 Hz, single phase AC

Inrush current

55 A maximum inrush current

Efficiency

> 82% typical at full load, high line

Conducted EMI

FCC Subpart J EN55022 Class B

Radiated EMI

FCC Subpart J EN55022 Class B

Power factor

0.99 typical

Leakage current

1.40 mA @ 240 Vac

Hold up time

20 ms minimum

Output

Main DC voltage

+12 V @ 52.5 A/70.0 A

+24 V @ 26.3 A/35.0 A

+48 V @ 13.1 A/17.5 A

Standby

+3.3 vsb @ 6 A (5 V @ 4 A available)

Adjustment range

Factory Set, no pot adjustments

Regulation

Main output; +5%/-5%

+3.3 vsb; +5%/-5%

Overcurrent

110% - 150% of nominal Latches off if overcurrent lasts

over 1 second, otherwise it is auto recovery.

+3.3 vsb, 9 A max (hiccup mode)

Over oltage

110% - 120% of nominal

+3.3 vsb; 3.76 - 4.30 Vdc

Undervoltage

75% - 90% of nominal

Turn-on delay

2 Second max, 5 - 50 mS, Monotonic Rise

Main output rise time

5 - 50 mS, Monotonic Rise

Data Sheet