Document
Embedded Power for Business-Critical Continuity
DS450DC-3/ DS550DC-3
450 - 550 Watts
Distributed Power System
Distributed Power Bulk Front-End
Total Output Power: 450 - 550 Watts +12 Vdc main Output +3.3 Vdc Stand-by Output DC Input 36 - 75 Vdc
DC Input
Rev. 10.13.09_79 DS450DC/DS550DC of 4
Connector input shown
Electrical Specifications
Special Features
• • • • • • • • • • • • • • • • • 1U X 2U Form Factor 10.3 W / in3 (DS550) 8.4 W / in3 (DS450) +12 Vdc Output +3.3 Vdc Stand-By No Minimum Load Required Hot Plug Operation N + 1 Redundant Internal OR’ing Fets Active Current Sharing Built-in Cooling Fans (40 mm x 28 mm) I2C Communication Interface Bus EERPOM for FRU Data Amber LED Status, Fan_Fail Green LED Status, Power Good / DC_OK Status (VIN_GOOD) Internal Fan Speed Control Fan Fail Tach Output Signal One Year Warranty
Input
Input range: Frequency: Inrush current: Efficiency: Conducted EMI: Radiated EMI: Power factor: Leakage current: Hold up time: 36 - 75 Vdc DC input 21 A maximum EVT: 87% @ 72 Vdc; 87.4% @ 75 Vdc FCC Subpart J EN55022 Class A FCC Subpart J EN55022 Class A N/A N/A No touch current required. 1 ms minimum +12 V +3.3 Vsb Factory Set, no pot adjustments +12 Vdc; +5%/-5% +3.3 Vsb; +5%/-5% See Table 1 next page +12 Vdc; 13.5 - 15 Vdc +3.3 Vsb; 3.76 - 4.30 Vdc +12 Vdc; 10.5 V - 11.0 V +3.3 Vsb; 2.77 - 3.00 Vdc < 3 seconds, EVT: 2 seconds 3 - 300 mS
Output
Main DC voltage: Stand-By: Adjustment range: Regulation: Over current: Over voltage: Under voltage: Turn-on delay: +12 V Output Rise Time:
Safety
• • • • • UL/cUL 60950 (UL Recognized) NEMKO+ CB Report EN60950 EN60950 CE Mark China CCC
Embedded Power for Business-Critical Continuity
Logic Control
PS_ON/L: (Power supply enable) VIN_GOOD/H (Input OK): The power supply output will be enabled when this signal is pulled low (< 0.8 V). HIGH = Output V1 OFF LOW = Output V1 ON Active High signal asserted when the input voltage rises above the min input voltage specified. This signal is internally pulled up through 4.7 K ohms to the 3.3 V housekeeping voltage. Active High signal asserted when the output is within regulation. This signal is internally pulled up through 1.0 K ohms to the 3.3 V housekeeping voltage. This open collector signal generates two pulses per each fan revolution. This signal is eternally pulled up to the housekeeping voltage. This signal will cause the output to shut down when drive high (> 24 V) or left floating. The PS_KILL will cause the output to latch off and requires recycle of PS_ON or DC input to reset. PMBus - I2C compliant
Rev. 10.13.09_79 DS450DC/DS550DC of 4
POK/H (Output OK): TACH_1: PS_KILL:
Digital Control:
Environmental Specifications
Operating temperature: Storage temperature: Altitude, operating: -10 °C to 50 °C -40 °C to +70 °C 10,000 ft.
Electromagnetic - EN61000-3-2, -3-3 susceptibility / Input transients: - EN61000-4-2, 4.3, 4-4, -4-5, 4-11 Level - EN55024:1998 RoHS & lead-free compliant (no tantalum cap.