Embedded Power for
Business-Critical Continuity
IBC
Eighth-Brick
Series
2nd Generation IBC
Total Power:
200 - 300W
Input Voltage:
36 - 75Vdc
Rev.05.29.08
eighth_brick_300w_ibc17
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Electrical Specifications
Output
Output setpoint accuracy
Line regulation:
Load regulation
Total error band
(including setpoint, line,
load and temperature)
Minimum load
Overshoot
Undershoot
Ripple and noise
5 - 20 MHz
Low line to high line
Full load to min. load
IBC25AET4812
IBC20AES4812
IBC17AEW4812
At turn on and turn-off
(See note 2)
See table
See table
See table
9.70 - 13.40 Vdc
11.52 - 12.48 Vdc
11.40 - 12.60 Vdc
0A
None
None
60 mV pk-pk typ.
20 mV rms typ.
See table
Remote OFF
(See note 1)
IBC25AET4812
IBC20AES4812
IBC17AEW4812
6 mA typ.
6.9 A max. @ lo max.
and Vin = min. rated
550 mA (pk-pk)
230 mA (pk-pk)
230 mA (pk-pk)
(see note 6)
Open collector ref. to- input
>2.4 Vdc
<0.4 Vdc
40 V
38 V
35.2 V
34 V
15 ms
5 ms
Special Features
• 48 V input with isolated 12 V
output
• Ultra-high efficiency, 95.5%
12 V @ 25 A
• Unprecedented usable out-
put power levels
• High power density
(362 W/in
3
) open-frame
technology
• Wide operating ambient
temperature range
• Industry standard eighth-
brick footprint and pinout
• Low profile, 0.40" (10.2 mm)
• Meets basic insulation
requirements of EN60950-1
• Remote ON/OFF and
overtemperature protection
• Available RoHS compliant
• 2 year warranty
Input
Input voltage range
Input current
Input current (max.)
Input reflected ripple
(See note 4)
Remote ON/Off
Logic compatiblity
On
OFF
Undervoltage lockout:
IBC25AET4812 and
IBC20AES4812
IBC17AEW4812
Startup time (see note 3)
Safety
UL/cUL 60950-1, 1st Edition
EN 60950-1 VDE
Power-up
Power-down
Power up
Power down
Power-up
Remote ON/OFF
Embedded Power for
Business-Critical Continuity
All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
EMC Charateristics
Immunity:
ESD air enclosure
Input transients:
EN61000-4-2 8 kV, 6 kV
IBC25AET4812
IBC20AES4812
IBC17AEW4812
(Air contact)
60 V. 100 ms
60 V. 100 ms
100 V. 100 ms
Rev.05.29.08
eighth_brick_300w_ibc17
2 of 3
General Specifications
Efficiency
Basic insulation
Switching frequency
Approvals and
standards (see note 5)
Material flammability
Weight
MTBF
Representative model:
Input/output
Fixed
See table
2250 Vdc
600 kHz typ.
EN60950-1 VDE
UL/cUL60950-1
UL94V-0
33 g (1.16 oz)
5,500,000 hours
Environmental Specifications
Thermal
Operating ambient, -40 °C to +85 °C
performance temperature
Non-operating
-55 °C to +125 °C
Protection
Short-circuit
Overvoltage (See note 9)
Thermal
Hiccup
Non-latching
125 °C hot spot
Telcordia Tech SR-332
48 Vin, 40 °C, 50% load
ground benign
Ordering Information
Output
Power
(Max.)
Input
Voltage
Output
Voltage
Output
Current
(Min.)
Output Current
(Max.)
Efficiency
(Typ.)
Regulation
2
Set Point
Accuracy %
Line %
Load
Model Number
300 W
240 W
200 W
42 - 53 Vdc
42 - 53 Vdc
36 - 75 Vdc
12 V
12 V
12 V
0A
0A
0A
25 A
20 A
17 A
95.5%
94.5%
94.0%
---
±0.25%
±0.25%
+10, -12.5%
±0.3%
±1.0%
±1.5%
±1.5%
±1.5%
IBC25AET4812J
IBC20AES4812J
IBC17AEW4812J
CAUTION: Hazardous internal voltages and high temperatures.
Ensure that unit is not user accessible.
Part Number System with Options
Product Family
Rated Output
Current
Form Factor
Input Voltage Type
Input
Voltage
Output
Voltage
Remote
ON/OFF Logic
Package, Body
Height
Pin Length
Options
RoHS
Compliance
(7, 8)
IBC
IBC Intermediate
Bus Converter
2nd Generation
17A
17 A =
17 Amps etc.
E
E = Eighth-
Brick
Q = Quarter-
brick
S = Sixteenth-
brick
W
T = Narrow Input
Fixed Ratio
S = Narrow Input
Semi-reguated
N = Narrow Telecom
Fixed Ratio
W = Wide Telecom
Semi-reguated
48
48 = 48 V
12
12 = 12 V
-
R
Blank =
Positive
R = Negative
(See Note 6)
A
A = Open-frame
0.40 in (10.2
mm)
E = Open-rame,
0.45 in (11.4
mm)
N
Blank = 0.188 ”
(4.78 mm)
N = 0.145 ”
(3.68 mm)
K = 0.110 ”
(2.79 mm)
J
J = Pb-free
(RoHS 6/6
compliant)
Y = RoHS 5/6
compliant
Notes
1
2
3
4
5
Recommended input fusing is a 20 A HRC 250 V rated fuse.
Measured with external filter. See Application Note 182 for details.
Start-up into resistive load.
Peak to peak measured without external Pi filter. Significant reduction
possible with external filter. See Application Note 182 for details.
This product is only for inclusion by professional installers within other
equipment and must not be operated as a stand alone product.
6
7
8
Active-low remote ON/OFF option is also available. Please add the suffix ‘-R’
to the part number, e.g. IBC17AEW4812-RAJ.
TSE RoHS 5/6 (non Pb-free) compliant versions may be available on special
request, please contact your local sales representative for details.
NOTICE: Some models do not support all options. Please contact your local
Sales representative or use the on-line model number search tool at
http://www.powerconversion.com to find a suitable alternative.
Embedded Power for
Business-Critical Continuity
Mechanical Drawing
Americas
2.30
[58.4]
2.000
[50.80]
5810 Van Allen Way
Carlsbad, CA 92008
USA
Telephone: +1 (760) 930 4600
Facsimile: +1 (760) 930 0698
Rev.05.29.08
eighth_brick_300w_ibc17
3 of 3
0.1450.020
[3.680.51]
1
2
3
4
5
Europe (UK)
Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX
United Kingdom
Telephone: +44 (0) 1384 842 211
Facsimile: +44 (0) 1384 843 355
0.90
[22.9]
0.300
[7.62]
0.300
[7.62]
Asia (HK)
0.45
[11.4]
14/F, Lu Plaza
2 Wing Yip Street
Kwun Tong, Kowloon
Hong Kong
Telephone: +852 2176 3333
Facsimile: +852 2176 3888
0.48 [12.2]
MAX
0.145 [3.68]
0.04 [1.0]
MIN
0.060 [1.52]
0.040 [1.02]
For global contact, visit:
www.powerconversion.com
techsupport.embeddedpower
@emerson.com
While every precaution has been taken to ensure
accuracy and completeness in this literature, Emerson
Network Power assumes no responsibility, and disclaims
all liability for damages resulting from use of this
information or for any errors or omissions.
ø0.093
[2.36]
ø0.062
[1.57]
Solder venting
feature
Emerson Network Power.
The global leader in enabling
business-critical continuity.
ø0.122
[3.10]
ø0.092 [2.34]
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Dimensions in Inches (mm)
Tolerances (unless otherwise specified)
x.xx 0.02 (x.x 0.5)
x.xxx 0.010 (x.xx 0.25)
Pin connections
Pin Number
Function
1
2
3
4
5
+Vin
Remote ON/OFF
-Vin
-Vout
+Vout
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