Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

DIM3R3300SFA Datasheet(PDF) 9 Page - Delta Electronics, Inc.

Part # DIM3R3300SFA
Description  300W Dual Input Power Processing DC/DC Power Modules
Download  13 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  DELTA [Delta Electronics, Inc.]
Direct Link  http://www.deltaww.com
Logo DELTA - Delta Electronics, Inc.

DIM3R3300SFA Datasheet(HTML) 9 Page - Delta Electronics, Inc.

Back Button DIM3R3300SFA_09 Datasheet HTML 5Page - Delta Electronics, Inc. DIM3R3300SFA_09 Datasheet HTML 6Page - Delta Electronics, Inc. DIM3R3300SFA_09 Datasheet HTML 7Page - Delta Electronics, Inc. DIM3R3300SFA_09 Datasheet HTML 8Page - Delta Electronics, Inc. DIM3R3300SFA_09 Datasheet HTML 9Page - Delta Electronics, Inc. DIM3R3300SFA_09 Datasheet HTML 10Page - Delta Electronics, Inc. DIM3R3300SFA_09 Datasheet HTML 11Page - Delta Electronics, Inc. DIM3R3300SFA_09 Datasheet HTML 12Page - Delta Electronics, Inc. DIM3R3300SFA_09 Datasheet HTML 13Page - Delta Electronics, Inc.  
Zoom Inzoom in Zoom Outzoom out
 9 / 13 page
background image
PRELIMINARY DATASHEET
DS_DIM3R3_03252009
9
FEATURES AND DESIGN
CONSIDERATIONS
Introduction
The DIM3R3/050 module is designed to simplify the task
and reduce the board space of an ATCA (Advanced
Telecommunications Computing Architecture) power
entry distribution requirements in the system board.
The main functionality of the module is to provide dual,
redundant -48V A/B Feed OR’ing, inrush protection for
hot swap capability, EMI filtering to attenuate the noise
generated by the downstream DC/DC converters, and a
72V output voltage for charging the holdup capacitor.
The module also has a management power supply
which provides an 8W, 3.3V or 5V management power
and/or a 5V/100mA output (optional) to power the blue
LED per PICMG 3.0 requirement.
The module provides A/B feed/fuse open alarm, over
current protection, over voltage protection, and over
temperature protection. It also provides input under
voltage lock-out and input reverse polarity protection.
A/B Feed OR’ing
To improve the total power distribution efficiency, four
internal MOSFETs are used to function as the OR’ing
diodes. A control circuit is designed to keep about
100mV voltage drop across MOSFET. During full load
operation, the MOSFETs are fully turned on. During light
load, the MOSFETs work under a high Rdson condition.
If the output current decreases to zero, the MOSFETs
will be turned off. This design provides module a reverse
voltage sustain function. The module shall not be
damaged from reverse polarity connection in the event
of mis-wiring of either input feeds at the shelf input
terminals. Furthermore, a fast shut down circuit is
designed for the negative current case. This design
protects the common DC bus against hard short faults at
the sourcing power supply output.
Hot Swap Functionality
The hot-swap function is designed to limit the inrush
current charged to the bulk capacitor of the down stream
bus converter. The current value and duration comply
with the PICMG 3.0’s Inrush Transient specs.
Although the inrush current for bulk capacitor is under
control, special attentions need to be paid to the current
for EMI filter because this circuit is in front of hot-swap
circuit.
EMI Filtering
An internal EMI filter is designed for the ATCA board to
meet the system conducted emission requirements of
CISPR 22 Class B when used with Delta DC/DC
converters.
Figure 17 shows the EMI performance of DIM3R3 when
it worked with Delta power module Q48SH12025NRFA
(36~75Vin, 12V/25A output Quarter brick). It meets
CISPR 22 Class B requirement.
Figure 11: EMI test result with Q48SH12025NRFA:
Holdup
Capacitor
Charging
Current
(72V_CAP)
An off line holdup capacitor (C_HLDP) is needed to
store energy for the holdup time requirement. C_HLDP
is charged to 72V (+/- 3% tolerance). For a fixed energy
storage requirement, high capacitor voltage reduces
capacitor capacitance and size. A constant current
circuit charges C_HLDP before its voltage reaches the
high limitation and isolates it from power train circuit.
The discharge switch will turn on if both A&B feeds have
dropped below –38V (typical). C_HLDP will be
connected to power train and provided the energy for
system operation.
C_HLDP is calculated by the following equation:
2
2
72
_
*
*
2
_
Vth
V
HLDP
T
Power
HLDP
C
=
Where Power is the input power to the downstream
DC/DC converter; T_HLDP is the holdup time
requirement; Vth is the minimum input voltage threshold
of the downstream DC/DC converter.


Similar Part No. - DIM3R3300SFA_09

ManufacturerPart #DatasheetDescription
logo
Delta Electronics, Inc.
DIM3R3300SFA DELTA-DIM3R3300SFA_14 Datasheet
379Kb / 14P
   Delphi Series DIM, 300W Dual Input Power Processing DC/DC Power Modules
More results

Similar Description - DIM3R3300SFA_09

ManufacturerPart #DatasheetDescription
logo
Delta Electronics, Inc.
DIM3R3300SFA DELTA-DIM3R3300SFA Datasheet
376Kb / 13P
   Delphi Series DIM, 300W Dual Input Power Processing DC/DC Power Modules
DIM3R3300SFA DELTA-DIM3R3300SFA_14 Datasheet
379Kb / 14P
   Delphi Series DIM, 300W Dual Input Power Processing DC/DC Power Modules
E48SD12025 DELTA-E48SD12025 Datasheet
1Mb / 27P
   300W DC/DC Power Modules
Q48SC12025 DELTA-Q48SC12025 Datasheet
1Mb / 28P
   300W DC/DC Power Modules
E48SC12025 DELTA-E48SC12025 Datasheet
1Mb / 28P
   300W DC/DC Power Modules
logo
General Electric Compan...
QBVW025A0B GEC-QBVW025A0B Datasheet
1Mb / 19P
   Barracuda* Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output
Version 1.3 May 9, 2013
logo
BOSER Technology Co., L...
BPW-830C BOSER-BPW-830C Datasheet
78Kb / 1P
   300W DC-DC ATX power supply Input Range: 19~32VDC
MPD-830R BOSER-MPD-830R Datasheet
82Kb / 1P
   300W DC-DC ATX Power Supply
BPW-830V BOSER-BPW-830V Datasheet
78Kb / 1P
   300W DC-DC ATX power supply Input Range: -40~-72VDC
logo
Delta Electronics, Inc.
Q48SH12025 DELTA-Q48SH12025 Datasheet
392Kb / 13P
   300W Quarter Brick Family DC/DC Power Modules: 48V in, 12V/25A out
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com