Embedded Power for
Business-Critical Continuity
Rev.06.06.08
qb2gibc
1 of 4
Quarter-Brick
Series
2nd Generation IBC
Total Power: 336 - 450W
Input Voltage: 36 - 75 Vdc
Electrical Specifications
Output
Special Features
Output setpoint accuracy See table
48V input with isolated 12 V
Line regulation: Low line to high line See table
output
Load regulation Full load to min. load See table
Ultra-high efficiency, 95.5% 12
Total error band IBC38AQT4812J 9.70 - 13.40 Vdc
V @ 37.5 A
3
High power density (337 W/in )
(including setpoint, line, IBC30AQS4812J 11.52 - 12.48 Vdc
open-frame technology
load and temperature) IBC28AQW4812J 11.40 - 12.60 Vdc
Wide operating ambient
Minimum load 0 A
temperature range
Overshoot At turn on and turn-off None
Industry standard quarter-brick
footprint and pinout
Undershoot None
Low profile, 0.40 (10.2 mm)
Ripple and noise (See note 2) 100 mV pk-pk typ.
Meets basic insulation
5 - 20 MHz 40 mV rms typ.
requirements of EN60950-1
Remote ON/OFF and
Input
overtemperature protection
Input voltage range See table
Available RoHS compliant
2 Year Warranty
Input current Remote OFF 6 mA typ.
Input current (max.) (See note 1) 12 A max. @ lo max.
and Vin = min. rated
Input reflected ripple (See note 4) 1000 - 1560 mA (pk-pk)
Remote ON/Off (See note 6)
Logic compatiblity Open collector ref. to- input
On >2.4 Vdc
OFF <0.4 Vdc
Undervoltage lockout (non-latching): Power-up 40 V
Safety
IBC38AQT4812J and Power-down 38 V
UL/cUL : CAN/CSA 22.2
IBC30AQS4812J Power up 35.2 V
No. 60950-1
IBC28AQW4812J Power down 34 V
UL60950-File No. E135734
Startup time (see note 3) Power-up 15 ms
VDE File No. 10401-3336-0206
Remote ON/OFF 5 ms
Licence No. 40012752Embedded Power for
Business-Critical Continuity
Rev.06.06.08
All specifications are typical at nominal input, full load at 25 C unless otherwise stated.
qb2gibc
2 of 4
EMC Charateristics
Immunity:
ESD air enclosure EN61000-4-2 8 kV, 6 kV (O/P within spec.)
Radiated field enclosure
EN61000-4-3 10 V/m (O/P within spec.)
Conducted (DC power)
EN61000-4-6 10 V (O/P within spec.)
Input transients
60 V to 100 V. 100 ms
General Specifications
Efficiency See table
Environmental Specifications
Basic insulation Input/output 2250 Vdc
Thermal Operating ambient, -40 C to +85 C
Switching frequency Fixed 400 kHz typ.
performance temperature
Approvals and EN60950-1 VDE
standards (see note 5) UL/cUL60950-1
Non-operating -55 C to +125 C
Material flammability UL94V-0
Protection
Weight 49 g (1.73 oz)
Short-circuit Hiccup
MTBF Telcordia Tech SR-332 5,500,000 hours
Overvoltage (See note 9) Non-latching
Representative model: 48 Vin, 40 C, 50% load
ground benign Thermal 125 C hot spot
Ordering Information
2
Output Output Regulation
Input Output Output Current Efficiency
Power Current Model Number
Set Point
Voltage Voltage (Max.) (Typ.)
Line %Load
(Max.) (Min.)
Accuracy %
(7)
450 W 42 - 53 Vdc 12 V 0 A 37.5 A 95.5% --- +10, -12.5% 1.5% IBC38AQT4812J
360 W 42 - 53 Vdc 12 V 0 A 30 A 94.5% 0.25% 0.3% 1.5% IBC30AQS4812J
336 W 36 - 75 Vdc 12 V 0 A 28 A 94.5% 0.25% 1.0% 1.5% IBC28AQW4812J
CAUTION: Hazardous internal voltages and high temperatures.
Ensure that unit is not user accessible.
Part Number System with Options
Rated Output Form Factor Input Voltage Type Input Output Remote Package, Body Pin Length RoHS
Product Family
(7, 8)
Current Voltage Voltage ON/OFF Logic Height Options Compliance
IBC 30A Q S 48 12 - R A N J
30 A = Q = Quarter- T = Narrow Input 48 = 48 V 12 = 12 V Blank = A = Open-frame Blank = 0.188 J = Pb-free
IBC =2nd
30 Amps etc. brick Fixed Ratio Positive 0.40 in (10.2 (4.78 mm) (RoHS 6/6
Generation IBC
S = Narrow Input R = Negative mm) N = 0.145 compliant)
Semi-reguated (See Note 6) E = Open-rame, (3.68 mm)
W = Wide Telecom 0.45 in (11.4 K = 0.110
Semi-reguated mm) (2.79 mm)
Notes
1. Recommended input fusing is a 20 A HRC 200 V rated fuse.
7. Output is rated at 450W constant power.
2. Maximum is model dependent, Measured with external filter. See Application
V = 42 V: I = 42.9 A
in max
Note 190 for details.
V = 48 V: I = 37.5 A
in max
3. Start-up into resistive load.
V = 53 V: I = 34.0 A
in max
4. Maximum is model dependent, measured without external Pi filter. Significant 8. E option clearance is required to maintain Basic creepage and clearance requirements when
minimally insulated conductor paths are placed directly underneath the converter.
reduction is possible with external filter. See Application Note 190 for details.
9. TSE RoHS 5/6 (non Pb-free) compliant versions may be available on special request, please
5. This product is only for inclusion by professional installers within other equipment
contact your local sales representative for details.
and must not be operated as a stand alone product.
10. NOTICE: Some models do not support all options. Please contact your local Emerson Network
6. Negative remote ON/OFF option is available. Please add the suffix -R to the part
Power representative or use the on-line model number search tool at
number, e.g. IBC30AQS4812-RAJ.