TDK Network Card iEB Series User Manual

Advance Data Sheet: FReta iEB Series –Single Output Eighth Brick Bus Converter  
FReta iEB Series DC/DC Power Modules  
48V Input, 200W Output  
Eighth Brick  
The FReta Series offers an industry  
standard 200W Eighth brick power module  
featuring a high operating efficiency that  
results in true useable power. The FReta  
modules offer a fixed conversion ratio of 4:1.  
The unregulated power train topology  
provides a low cost, high performance, high  
reliability solution that is suitable for  
distributed power architectures that utilize an  
intermediate voltage bus to power non-  
isolated point of load converters.  
Standard Features:  
Size – 58.4mm x 22.9 mm x 12.3  
mm (2.30 in. x 0.90 in. x 0.485 in.)  
Long Thru-hole pins 4.57 mm  
(0.180”)  
High efficiency – greater than 94%  
2250Vdc isolation voltage  
Meets basic insulation spacing  
requirements  
Constant switching frequency  
Industry Standard Footprint  
Remote on/off (negative logic)  
Auto-recovering input over-voltage  
protection  
Auto-recovering over-temperature  
protection  
Applying for UL 60950 (U.S. and  
Canada), VDE 0805, CB scheme  
(IEC950), CE Mark (EN60950)  
ISO Certified manufacturing  
facilities  
Optional Features:  
Remote on/off (positive logic)  
Short Thru-hole pins 3.68 mm  
(0.145”)  
Auto-recovering output over-  
current protection  
Auto-recovering output short circuit  
protection  
(877) 498-0099  
©2004-2007 TDK Innoveta Inc.  
10/29/2007  
1/12  
 
Advance Data Sheet: FReta iEB Series –Single Output Eighth Brick Bus Converter  
Mechanical Specification:  
Dimensions are in mm [in]. Unless otherwise specified tolerances are: x.x ± 0.5 [0.02], x.xx and x.xxx ± 0.25 [0.010].        
Recommended Hole Pattern: (top view)  
Pin Assignment:  
FUNCTION  
PIN FUNCTION  
PIN  
1
Vin(+)  
On/Off  
Vin(-)  
4
5
Vo(-)  
2
Vo(+)  
3
Pin base material is copper with plating; the maximum module weight is 30g (1.05 oz).  
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©2004-2007 TDK Innoveta Inc.  
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Advance Data Sheet: FReta iEB Series –Single Output Eighth Brick Bus Converter  
Absolute Maximum Ratings:  
Stress in excess of Absolute Maximum Ratings may cause permanent damage to the device  
Characteristic  
Min  
-0.5  
---  
Max  
75  
Unit  
Vdc  
Vdc  
Vdc  
˚C  
Notes & Conditions  
Continuous Input Voltage  
Transient Input Voltage  
Isolation Voltage  
---  
---  
2250  
125  
Basic insulation  
Storage Temperature  
-55  
Measured at the location specified in the thermal  
measurement figure. Maximum temperature varies  
with model number, output current, and module  
orientation – see curve in thermal performance  
section of the data sheet.  
Operating Temperature Range (Tc)  
*Engineering estimation  
-40  
123*  
˚C  
Input Characteristics:  
Unless otherwise specified, specifications apply over all Rated Input Voltage, Resistive Load, and Temperature conditions.  
Characteristic  
Operating Input Voltage  
Maximum Input Current  
Turn-on Voltage  
Min  
38  
Typ  
48  
Max  
53  
Unit  
Vdc  
A
Notes & Conditions  
---  
---  
6.5*  
---  
Vin = 0 to Vin,max  
---  
36  
Vdc  
Vdc  
Vdc  
mS  
Turn-off Voltage  
31*  
0.5*  
---  
34.5  
1.5  
3
---  
Hysteresis  
---  
Startup Delay Time from application of input  
voltage  
---  
Vo = 0 to 0.1*Vo,nom; on/off =on,  
Io=Io,max, Tc=25˚C  
Startup Delay Time from on/off  
---  
3
---  
mS  
Vo = 0 to 0.1*Vo,nom; Vin = Vi,nom,  
Io=Io,max,Tc=25˚C  
Output Voltage Rise Time  
Input Over-voltage Turn-off  
Input Over-voltage Turn-on  
Input Over-voltage Hysteresis  
Inrush Transient  
---  
---  
---  
---  
---  
---  
4
---  
---  
mS  
Vdc  
Vdc  
Vdc  
A2s  
Io=Io,max,Tc=25˚C, Vo=0.1 to 0.9*Vo,nom  
61  
59  
2
Input rising  
Input falling  
---  
---  
---  
50  
0.2  
---  
Input Reflected Ripple  
mApp  
See input/output ripple and noise  
measurements figure; BW = 20 MHz  
*Engineering estimation  
Caution: The power modules are not internally fused. An external input line normal blow fuse with a maximum value of  
10A is required; see the Safety Considerations section of the data sheet.  
(877) 498-0099  
©2004-2007 TDK Innoveta Inc.  
10/29/2007  
4/12  
 
Advance Data Sheet: FReta iEB Series –Single Output Eighth Brick Bus Converter  
iEB48017A120V-000 through -007: 12V, 17A Output  
Electrical Data:  
Characteristic  
Min  
Typ  
Max  
Unit  
Notes & Conditions  
Output Voltage Initial Setpoint  
---  
12  
---  
Vdc  
Vin=Vin,nom; Io=no load(0A); Tc = 25˚C  
Over all rated input voltage, load, and  
temperature conditions to end of life  
Output Voltage Tolerance  
7.9*  
12  
13.7  
Vdc  
Efficiency  
---  
---  
94.5  
3.8  
---  
---  
%
V
Vin=Vin,nom; Io=Io,max; Tc = 25˚C  
Line Regulation  
Vin=Vin,min to Vin,max; Io=0A; Tc = 25˚C  
Io=Io,min to Io,max; Vin=Vin,nom; Tc =  
25˚C  
Load Regulation  
---  
---  
0.6  
50  
---  
V
Temperature Regulation  
---  
19.5  
17  
mV  
Tc=Tc,min to Tc,max; Io=Io,min  
Vin=Vin,min  
At loads less than Io,min the module will  
operate correctly, but the output ripple may  
increase.  
Output Current  
1*  
---  
A
Vin=Vin,nom  
Vin=Vin,max  
16  
Output Current Limiting Threshold  
Short Circuit Current  
---  
---  
23  
7
---  
A
A
Vo = 0.9*Vo,nom, Tc<Tc,max  
Vo = 0.25V, Tc = 25˚C  
---  
mVpp  
---  
---  
100  
30  
200*  
---  
Measured across one 0.1uF, and 2x22uF  
ceramic capacitors– see input/output ripple  
measurement figure; BW = 20MHz  
Output Ripple and Noise Voltage  
mVrms  
Dynamic Response:  
Recovery Time  
di/dt = 1A/uS, Vin=Vin,nom; load step from  
0% to 100% of Io,max  
---  
---  
25*  
---  
---  
uS  
700*  
Transient Voltage  
mV  
Output Voltage Overshoot during startup  
Ouput ripple Frequency  
---  
---  
0
---  
330  
---  
5
---  
%
Vin=Vin,nom; Io=Io,max,Tc=25˚C  
Fixed  
kHz  
uF  
External Load Capacitance  
Isolation Resistance  
4000*&  
---  
10  
---  
MΩ  
& Contact TDK Innoveta for applications that require additional capacitance or very low esr  
*Engineering estimation  
(877) 498-0099  
©2004-2007 TDK Innoveta Inc.  
10/29/2007  
5/12  
 
Advance Data Sheet: FReta iEB Series –Single Output Eighth Brick Bus Converter  
Electrical Characteristics:  
iEB48017A120V-000 through -007: 12V, 17A Output  
96  
95  
94  
93  
92  
91  
90  
14  
12  
10  
8
6
4
2
0
0
2
4
6
8
10 12 14 16 18 20  
0
2
4
6
8
10 12 14 16 18 20  
Output Current (A)  
Output Current (A)  
Vin = 38V  
Vin = 48V  
Vin = 53V  
Vin = 38V  
Vin = 48V  
Vin = 53V  
iEB48017A120V-000 Typical Efficiency vs. Input  
Voltage at Ta=25 degrees.  
iEB48017A120V-000 Typical Power Dissipation vs.  
Input Voltage at Ta=25 degrees  
14  
13  
12  
11  
10  
9
8
0
2
4
6
8
10 12 14 16 18 20  
Output Current (A)  
Vin = 38V  
Vin = 53V  
Vin = 48V  
Vin = 42V  
iEB48017A120V-000 Typical Output Voltage vs. Load  
Current at Ta = 25 degrees  
iEB48017A120V-001 Typical startup characteristic from  
on/off at full load, 1mS/div. Lower trace - on/off signal  
2V/div, upper trace – output voltage 5V/div.  
iEB48017A120V-000 Typical startup characteristic  
from input voltage application at full load, 1mS/div.  
Lower trace - input voltage 20V/div, Upper trace –  
output voltage 5V/div  
iEB48017A120V-000 Typical transient response  
10uS/div. Output voltage response to load step from  
0% to 100% of full load with output current slew rate of  
1A/uS, Upper trace – output voltage 1V/div.  
(877) 498-0099  
©2004-2007 TDK Innoveta Inc.  
10/29/2007  
6/12  
 
Advance Data Sheet: FReta iEB Series –Single Output Eighth Brick Bus Converter  
Electrical Characteristics (continued):  
iEB48017A120V-000 through -007: 12V, 17A Output  
14  
13  
12  
11  
10  
9
8
0
2
4
6
8
10 12 14 16 18 20 22 24 26  
Output Current (A)  
Vin = 38V  
Vin = 48V  
Vin = 53V  
iEB48017A120V-000 Typical Output Current Limit  
Characteristics vs. Input Voltage at Ta=25 degrees.  
iEB48017A120V-000 Typical Output Ripple at nominal  
Input voltage and full load at Ta=25 degrees  
14  
6
5
4
3
2
1
12  
10  
8
6
4
2
0
0
31 33 35 37 39 41 43 45 47 49 51 53  
31 33 35 37 39 41 43 45 47 49 51 53  
Input Voltage (V)  
Input Voltage (V)  
Io_min = 0A  
Io_mid = 10.1A  
Io_max = 20.1A  
Io_min = 0A  
Io_mid = 10.1A  
Io_max = 20.1A  
iEB48017A120V-000 Typical Input Current vs. Input  
Voltage Characteristics  
iEB48017A120V-000 Typical Output Voltage vs. Input  
Voltage Characteristics  
(877) 498-0099  
©2004-2007 TDK Innoveta Inc.  
10/29/2007  
7/12  
 
Advance Data Sheet: FReta iEB Series –Single Output Eighth Brick Bus Converter  
Thermal Performance:  
iEB48017A120V-000 through -007: 12V, 17A Output  
18  
18  
16  
16  
14  
14  
12  
12  
10  
NC  
10  
8
8
6
4
2
0
NC  
0.5 m/s (100 LFM)  
1.0 m/s (200 LFM)  
2.0 m/s (400 LFM)  
Tc MAX  
0.5 m/s (100 LFM)  
1.0 m/s (200 LFM)  
2.0 m/s (400 LFM)  
Tc MAX  
6
4
2
0
25 35 45 55 65 75 85 95 105 115 125  
25 35 45 55 65 75 85 95 105 115 125  
Temperature (oC)  
Temperature (oC)  
iEB48017A120V-000 maximum output current vs. ambient  
temperature at nominal input voltage for airflow rates natural  
convection (60lfm) to 400lfm with airflow from pin 3 to pin 1.  
iEB48017A120V-000 maximum output current vs. ambient  
temperature at nominal input voltage for airflow rates natural  
convection (60lfm) to 600lfm with airflow from output to input.  
1.3  
1.2  
1.1  
1.0  
0.9  
0.8  
0.7  
35  
40  
45  
50  
55  
60  
Input Voltage (V)  
iEB48017A120V-000 thermal measurement location –  
top view  
iEB48017A120V-000 typical current derating versus  
line voltage with airflow = 1m/s (200lfm) and load  
current greater than 4A.  
Both the thermal curves provided and the example given above are based upon measurements made in TDK Innoveta’s  
experimental test setup that is described in the Thermal Management section. Due to the large number of variables in  
system design, TDK Innoveta recommends that the user verify the module’s thermal performance in the end application.  
The critical component should be thermo coupled and monitored, and should not exceed the temperature limit specified in  
the derating curve above. It is critical that the thermocouple be mounted in a manner that gives direct thermal contact or  
significant measurement errors may result. TDK Innoveta can provide modules with a thermocouple pre-mounted to the  
critical component for system verification tests.  
(877) 498-0099  
©2004-2007 TDK Innoveta Inc.  
10/29/2007  
8/12  
 
Advance Data Sheet: FReta iEB Series –Single Output Eighth Brick Bus Converter  
to the airflow direction can have a significant  
Thermal Management:  
impact on the module’s thermal  
performance.  
An important part of the overall system  
design process is thermal management;  
thermal design must be considered at all  
Thermal Derating: For proper application of  
the power module in a given thermal  
levels to ensure good reliability and lifetime  
environment, output current derating curves  
of the final system. Superior thermal design  
are provided as a design  
Adjacent PCB  
and the ability to operate in severe  
application environments are key elements  
of a robust, reliable power module.  
Module  
Centerline  
A finite amount of heat must be dissipated  
from the power module to the surrounding  
environment. This heat is transferred by the  
three modes of heat transfer: convection,  
conduction and radiation. While all three  
modes of heat transfer are present in every  
application, convection is the dominant mode  
of heat transfer in most applications.  
A
I
R
F
L
12.7  
(0.50)  
O
W
However, to ensure adequate cooling and  
proper operation, all three modes should be  
considered in a final system configuration.  
76 (3.0)  
AIRFLOW  
The open frame design of the power module  
provides an air path to individual  
components. This air path improves  
convection cooling to the surrounding  
environment, which reduces areas of heat  
concentration and resulting hot spots.  
Air Velocity and Ambient  
Temperature  
Measurement Location  
Air Passage  
Centerline  
Test Setup: The thermal performance data  
of the power module is based upon  
Wind Tunnel Test Setup Figure Dimensions are  
in millimeters and (inches).  
measurements obtained from a wind tunnel  
test with the setup shown in the wind tunnel  
figure. This thermal test setup replicates the  
typical thermal environments encountered in  
most modern electronic systems with  
distributed power architectures. The  
electronic equipment in networking, telecom,  
wireless, and advanced computer systems  
operates in similar environments and utilizes  
vertically mounted PCBs or circuit cards in  
cabinet racks.  
guideline on the Thermal Performance  
section for the power module of interest.  
The module temperature should be  
measured in the final system configuration to  
ensure proper thermal management of the  
power module. For thermal performance  
verification, the module temperature should  
be measured at the component indicated in  
the thermal measurement location figure on  
the thermal performance page for the power  
module of interest. In all conditions, the  
power module should be operated below the  
maximum operating temperature shown on  
the derating curve. For improved design  
margins and enhanced system reliability, the  
power module may be operated at  
The power module, as shown in the figure, is  
mounted on a printed circuit board (PCB)  
and is vertically oriented within the wind  
tunnel. The cross section of the airflow  
passage is rectangular. The spacing  
between the top of the module and a parallel  
facing PCB is kept at a constant (0.5 in).  
The power module’s orientation with respect  
temperatures below the maximum rated  
operating temperature.  
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10/29/2007  
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Advance Data Sheet: FReta iEB Series –Single Output Eighth Brick Bus Converter  
Heat transfer by convection can be  
enhanced by increasing the airflow rate that  
the power module experiences. The  
Remote On/Off: - The power modules have  
an internal remote on/off circuit. The user  
must supply an open-collector or compatible  
switch between the Vin(-) pin and the on/off  
pin. The maximum voltage generated by  
the power module at the on/off terminal is  
15V. The maximum allowable leakage  
current of the switch is 50uA. The switch  
must be capable of maintaining a low signal  
Von/off < 1.2V while sinking 1mA.  
maximum output current of the power  
module is a function of ambient temperature  
(TAMB) and airflow rate as shown in the  
thermal performance figures on the thermal  
performance page for the power module of  
interest. The curves in the figures are shown  
for natural convection through 2 m/s (400  
ft/min). The data for the natural convection  
condition has been collected at 0.3 m/s (60  
ft/min) of airflow, which is the typical airflow  
generated by other heat dissipating  
components in many of the systems that  
these types of modules are used in. In the  
final system configurations, the airflow rate  
for the natural convection condition can vary  
due to temperature gradients from other heat  
dissipating components.  
The standard on/off logic is positive logic.  
The power module will turn on if terminal 2 is  
left open and will be off if terminal 2 is  
connected to terminal 3. If the positive logic  
circuit is not being used, terminal 2 should  
be left open.  
An optional negative logic is available. The  
power module will turn on if terminal 2 is  
connected to terminal 3, and it will be off if  
terminal 2 is left open. If the negative logic  
feature is not being used, terminal 2 should  
be shorted to terminal 3.  
Operating Information:  
Over-Current Protection: The power  
modules have current limit protection to  
protect the module during output overload  
and short circuit conditions. During overload  
conditions, the power modules may protect  
themselves by entering a hiccup current limit  
mode. The modules will operate normally  
once the output current returns to the  
specified operating range  
Vin (+)  
On/ Off  
Vin(-)  
Thermal Protection: When the power  
modules exceed the maximum operating  
temperature, the modules may turn off to  
safeguard the power unit against thermal  
damage. The module will auto restart as the  
unit is cooled below the over temperature  
threshold.  
On/Off Circuit for positive or negative  
logic  
(877) 498-0099  
©2004-2007 TDK Innoveta Inc.  
10/29/2007  
10/12  
 
Advance Data Sheet: FReta iEB Series –Single Output Eighth Brick Bus Converter  
EMC Considerations: TDK Innoveta power  
modules are designed for use in a wide  
variety of systems and applications. For  
assistance with designing for EMC  
compliance, please contact TDK Innoveta  
technical support.  
automated final test. The MTBF is  
calculated to be greater than 3.9M hours at  
full output power and Ta = 40˚C using the  
Telcordia SR-332 calculation method.  
Improper handling or cleaning processes can  
adversely affect the appearance, testability,  
and reliability of the power modules. Contact  
TDK Innoveta technical support for guidance  
regarding proper handling, cleaning, and  
soldering of TDK Innoveta’s power modules.  
Input Impedance:  
The source impedance of the power feeding  
the DC/DC converter module will interact  
with the DC/DC converter. To minimize the  
interaction, a 33-100uF input electrolytic  
capacitor should be present if the source  
inductance is greater than 2uH.  
Quality:  
TDK Innoveta’s product development  
process incorporates advanced quality  
planning tools such as FMEA and Cpk  
analysis to ensure designs are robust and  
reliable. All products are assembled at ISO  
certified assembly plants.  
Reliability:  
The power modules are designed using TDK  
Innoveta’s stringent design guidelines for  
component derating, product qualification,  
and design reviews. Early failures are  
screened out by both burn-in and an  
Input/Output Ripple and Noise Measurements:  
12uH  
1
2
Battery  
+
+
RLoad  
Cext  
Vinput  
-
Voutput  
-
33uF  
220uF  
esr<0.1  
100KHz  
esr<0.7  
100KHz  
Ground Plane  
The input reflected ripple is measured with a current probe and oscilloscope. The ripple  
current is the current through the 12uH inductor.  
The output ripple measurement is made approximately 9 cm (3.5 in.) from the power module  
using an oscilloscope and BNC socket. The capacitor Cext is located about 5 cm (2 in.) from  
the power module; its value varies from code to code and is found on the electrical data page  
for the power module of interest under the ripple & noise voltage specification in the Notes &  
Conditions column.  
(877) 498-0099  
©2004-2007 TDK Innoveta Inc.  
10/29/2007  
11/12  
 
Advance Data Sheet: FReta iEB Series –Single Output Eighth Brick Bus Converter  
Safety Considerations:  
When the supply to the DC-DC converter is  
less than 60Vdc, the power module meets  
all of the requirements for SELV. If the  
input voltage is a hazardous voltage that  
exceeds 60Vdc, the output can be  
considered SELV only if the following  
conditions are met:  
Check with TDK Innoveta for the current  
status of safety approval on the iEB product  
family.  
For safety agency approval of the system in  
which the DC-DC power module is installed,  
the power module must be installed in  
compliance with the creepage and clearance  
requirements of the safety agency. The  
isolation is basic insulation. For  
1) The input source is isolated from the  
ac mains by reinforced insulation.  
2) The input terminal pins are not  
accessible.  
applications requiring basic insulation, care  
must be taken to maintain minimum  
creepage and clearance distances when  
routing traces near the power module.  
3) One pole of the input and one pole  
of the output are grounded or both  
are kept floating.  
4) Single fault testing is performed on  
the end system to ensure that under  
a single fault, hazardous voltages  
do not appear at the module output.  
As part of the production process, the power  
modules are hi-pot tested from primary and  
secondary at a test voltage of 1500Vdc.  
Warranty:  
To preserve maximum flexibility, the power  
modules are not internally fused. An  
external input line normal blow fuse with a  
maximum value of 10A is required by safety  
agencies. A lower value fuse can be  
selected based upon the maximum dc input  
current and maximum inrush energy of the  
power module.  
TDK Innoveta’s comprehensive line of  
power solutions includes efficient, high-  
density DC-DC converters. TDK Innoveta  
offers a three-year limited warranty.  
Complete warranty information is listed on  
our web site or is available upon request  
from TDK Innoveta.  
Information furnished by TDK Innoveta is believed to be accurate and reliable. However, TDK Innoveta assumes no  
responsibility for its use, nor for any infringement of patents or other rights of third parties, which may result from its use. No  
license is granted by implication or otherwise under any patent or patent rights of TDK Innoveta. TDK Innoveta components  
are not designed to be used in applications, such as life support systems, wherein failure or malfunction could result in injury  
or death. All sales are subject to TDK Innoveta’s Terms and Conditions of Sale, which are available upon request.  
3320 Matrix Drive Suite 100  
Richardson, Texas 75082  
Phone (877) 498-0099 Toll Free  
(469) 916-4747  
Fax  
(877) 498-0143 Toll Free  
(214) 239-3101  
Specifications are subject to change without notice.  
is a trademark or registered trademark of TDK Corporation.  
(877) 498-0099  
©2004-2007 TDK Innoveta Inc.  
10/29/2007  
12/12  
 

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