Datasheet DHF1K2PS48 Datasheet (IPSI)

1200 Watts

DHF1K2 Series

SSI Compliant

•

Active Current Share

•

Hot-Swap N+1 Redundancy

•

I

2

C Bus, EEPROM Built-in

•

International Safety Agency Approvals

•

EMI Class “B”

•

•

•

Specification

Input

Input Voltage • 90-264 VAC
Input Frequency • 47-63 Hz
Inrush Current • Limited to <35A
Input Current • 4A/115VAC & 2A/230VAC
Remote On/Off • Active low to enable 48V

Output

Output Voltage • 48 VDC and 12 VDC standby
Output Power • 1200 watts for 220 VAC input

800 watts for 110 VAC input
Minimum Load • 0 minimum load required
Line Regulation • ±0.1% from low line to high line
Load Regulation • ±0.55% for 5V, ±0.125% for 12V
Ripple & Noise • 250mV pk-pk for 48V, 120mV pk-pk

for 12V
Transient Response • 3% Max Deviation 500µS recover y time

for a 50% load change
Temperature • ±0.3%°C

Coefficient
Hold Up Time • >20ms at low line
Overvoltage • 109% to 115%, auto recover y

Protection
Overcurrent • 110% to 150%, constant current with

Protection auto recovery
Reverse Rating • 24A
Undervoltage • 39.6V-42V sensed on annode side

Protection

Overtemperature • 95°C at PFC heatsink, 100°C at
Protection rectifier heatsink

Current Share • Single wire current sharing

General

Efficiency (typical) • 85% typical at low line and full load
Power Factor • 0.99
Power Density • 6.6 W/in

3

MTBF • 101445.7 hrs using Bellcore Method 1
Signals • 3 LED Indicators. Power good,

DC OK, Fan OK, Fail, Present

Weight • 7 lbs

Environmental

Operating • 0°C to 50°C
Temperature

Cooling • Internal Fan
Humidity • <95% RH, non condensing
Storage Temperature • -20°C to +85°C
Shock and Vibration • MIL STD-810F

Safety and EMC

Safety Approvals • UL1950, CSA C22.2 No 234,

EN60950, CE Mark LVD

EMI/EMC • Meets EN61000-3-2,-3, EN55022

Class B and FCC 20780 level B
conducted

Immunity and Surge • Meets EN50082-2 (EN61000-4-2,

-3, -4, -5). Performance criteria A

Warranty • 1 year

Intelligent Design Quality Product

XPiQ inc.

AC/DC Front End

PH: 508 429.9883

FAX: [phone]

Email: [e-mail]

Holliston, MA 01746 USA

www.XP-iQ.com

103

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LED INDICATORS

OUTPUT VOLTAGE & CURRENT RATINGS DHF1K2

Voltage Output Output Current Current Limit OVP Model Number

V1 48.0 VDC 24 A 26.4-36.0 A 52.1-55.0 VA

DHF1K2PS48

V2 12.5 VDC 4 A 4.1-6.5 A 13.4-14.2 V

OUTPUT CONNECTOR PIN CHART

12 345 6
D 12VSB 12VSB RETURN 48LS N/U SCL A0
C 12VSB 12VSB RETURN ACOK PRFL RESERVED A1
B 12VSB 12VSB RETURN PSON PSKILL (Note 1) SDA A2
A FANP RESERVED PRESENT PWROK FAIL FANC

POWER BLADE

P1 P2

48 VDC RETURN 48 VDC

NOTE 1: B4 - Shortened pin

POWER SUPPLY CONDITION PWR (Green) PRFL (Amber) FAIL (Amber)

NO AC POWER TO ALL PSU OFF OFF OFF
NO AC POWER TO THIS PSU ONLY OFF OFF ON
AC PRESENT / STAND BY OUTPUT ON BLINKING OFF OFF
POWER SUPPLY DC OUTPUTS ON & OK ON OFF OFF
POWER SUPPLY FAILURE OFF OFF ON
CURRENT LIMIT ON 48 VDC OUTPUT ON OFF BLINKING
PREDICTIVE FAILURE ON BLINKING/LATCHED OFF

PH: 508 429.9883

FAX: [phone]

Email: [e-mail]

Holliston, MA 01746 USA

www.XP-iQ.com

104

SIGNAL DESCRIPTION
48LS 48V LOAD SHARE BUS
12VSB 12V STANDBY OUT PUT (V2)
12VSB RETURN 12V STANDBY RETURN (V2 RTN)
PSON POWER ENABLE INPUT
PRESENT POWER SUPPLY PRESENT
FANC FAN CONTROL SIGNAL

SIGNAL DESCRIPTION
PWROK POWER OK OUTPUT
ACOK AC OK OUTPUT
PSKILL SUPPLY FAST SHUTDOWN
FAIL FAILURE SIGNAL
PRFL PREDICTIVE FAILURE
SCL CLOCK SIGNAL

SIGNAL DESCRIPTION
SDA DATA SIGNAL
A0 ADDRESS BIT 0
A1 ADDRESS BIT 1
A2 ADDRESS BIT 2
FANP FAN PWR INPUT PIN

PSKILL : This Must be tied to 12V stand by return to turn on V1.
ACOK : Open Collector Signal. Low = Input ≥85VAC.

High = Input ≤75VAC.

PWOK : Open Collector Signal. High = Power is good.

Low = Power not good. (when any output

voltage falls below regulation limits).

PRFL : Open Collector Signal. High = Fan is not operating within limits.

Low = Fan is OK.
FAIL : An Open Collector Signal. High = Power Supply Failed.
PRESENT# : This signal is connected to the Low = Present.

12V RTN inside the power supply. High = Not Present.
Pull up to VSB located in system.

FANC : Accepts an input voltage from the system.

FANC < 1V, fan in sleep mode.
2V < FANC < 3.0, fan in low speed.
3V < FANC < 10.5, fan ramps from low to high speed.
FANC > 10.5, fan in high speed.

Mechanical Details

Output Connector (Berg P/N 51415-00)

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