Rev. 03.13.06

DS850-3

1of 4

Embedded Power for

Business-Critical Continuity

DS850-3

850 Watts 12V

Distributed Power System

Special Features

• Active Power Factor Correction

• EN61000-3-2 Harmonic

Compliance

• Active AC Inrush Control

• 1U X 2U Form Factor

• +12Vdc Output

• +3.3vdc Stand-By

(5V standby - consult factory)

• No Minimum Load Required

• Hot Plug Operation

• N + 1 Redundant

• Internal OR'ing Fets

• Active Current Sharing

(10 - 100% load)

• Built-in Cooling Fans

(40mm x 28mm)

• EERPOM for FRU Data

• Red/Green Bi-Color LED Status

• Internal Fan Speed Control

• Fan Fail Tach Output Signal

• INTEL, SSI Std. Logic Timing

• INTEL, SSI Std. FRU Data Format

• One Year Warranty

Distributed Power Bulk Front-End

Total Output Power: 850 Watts

+3.3vdc Stand-by Output

Wide Range Input voltage: 90 - 264VAC

Electrical Specifications

Safety

Input

Input range

90-264 VAC (wide range)

Frequency

47-63 Hz, single phase AC

Inrush current

55A 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

1.40mA @ 240VAC

Hold up time

20ms minimum

Output

Main DC voltage

+12V @ 70A

Stand-By

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

Adjustment range

Factory Set, no pot adjustments

Regulation

+12Vdc; +5%/-5%

+3.3vsb; +5%/-5%

Over current

+12Vdc; 77A - 105A latches off if overcurrent lasts over

1 second, otherwise it is auto recovery.

+3.3vsb, 9A max (hiccup mode)

Over voltage

+12Vdc; 13.2 - 14.4vdc

+3.3vsb; 3.76 - 4.30vdc

Under voltage

+12Vdc; 9 - 10.8V (latch off)

Turn-on delay

2 Second max, 5 - 50mS, Monotonic Rise

+12VOutput Rise Time

5 - 50mS, Monotonic Rise

UL/cUL 60950 (UL Recognized)

NEMKO+ CB Report EN60950

EN60950

CE Mark

China CCC