EHW007A0B41Z Lineage Power, EHW007A0B41Z Datasheet - Page 6

• Manufacturer Part Number: EHW007A0B41Z
• Description: CONVERTER DC/DC 12VDC 7A T/H
• Manufacturer: Lineage Power
• Series: EHW007A0Br
• Type: Power Over Ethernet (PoE)r

Specifications of EHW007A0B41Z

• Output: 12V
• Number Of Outputs: 1
• Power (watts): 84W
• Mounting Type: Through Hole
• Voltage - Input: 36 ~ 75V
• Package / Case: Module
• 1st Output: 12 VDC @ 7A
• Size / Dimension: 2.30" L x 0.90" W x 0.32" H (58.4mm x 22.8mm x 8.1mm)
• Power (watts) - Rated: 84W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 92.5%
• Approvals: CE, CSA, EN, UL, VDE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 555-1142; CC109145100

Data Sheet
October 2, 2009
Test Configurations
Figure 7. Input Reflected Ripple Current Test
Setup.
Figure 8. Output Ripple and Noise Test Setup.
Figure 9. Output Voltage and Efficiency Test
Setup.
LINEAGE
NOTE: All voltage measurements to be taken at the module
V
V
O
O
Efficiency
(+)
( – )
TO OSCILLOSCOPE
NOTE: Measure input reflected ripple current with a simulated
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
R
R
NOTE: All voltage measurements to be taken at the module
distribution
distribution
POWER
source inductance (L
possible battery impedance. Measure current as shown
above.
terminals, as shown above. If sockets are used then
Kelvin connections are required at the module terminals
to avoid measurement errors due to socket contact
resistance.
R
R
COPPER STRIP
contact
contact
1uF
η =
@ 20°C 100kHz
E.S.R.<0.1Ω
C
S
GROUND PLANE
12μH
L
V
220μF
TES T
10uF
IN
V
Vin+
V
Vin-
O
IN
TEST
. I
. I
) of 12μH. Capacitor C
O
IN
Vout+
Vout-
SCOPE
33-100μF
V
x 100 %
O
RESISTIVE
CURRENT PROBE
LOAD
R
R
contact
contact
Vin+
S
Vin-
offsets
R
R
36–75Vdc Input; 12.0Vdc Output; 7A Output Current
distribution
distribution
R
LOAD
EHW007A0B Series Eighth-Brick Power Modules
Design Considerations
Input Filtering
The power module should be connected to a low
ac-impedance source. Highly inductive source
impedance can affect the stability of the power
module. For the test configuration in Figure 7 a 33-
100μF electrolytic capacitor (ESR<0.7Ω at 100kHz),
mounted close to the power module helps ensure the
stability of the unit. Consult the factory for further
application guidelines.
Safety Considerations
For safety-agency approval of the system in which the
power module is used, the power module must be
installed in compliance with the spacing and
separation requirements of the end-use safety agency
standard, i.e. UL60950-1, CSA C22.2 No.60950-1,
and VDE0805-1(IEC60950-1).
If the input source is non-SELV (ELV or a hazardous
voltage greater than 60 Vdc and less than or equal to
75Vdc), for the module’s output to be considered as
meeting the requirements for safety extra-low voltage
(SELV), all of the following must be true:
Note: Do not ground either of the input pins of the
The power module has extra-low voltage (ELV)
outputs when all inputs are ELV.
All flammable materials used in the manufacturing of
these modules are rated 94V-0, or tested to the
UL60950 A.2 for reduced thickness.
For input voltages exceeding –60 Vdc but less than or
equal to –75 Vdc, these converters have been
evaluated to the applicable requirements of BASIC
INSULATION between secondary DC MAINS
DISTRIBUTION input (classified as TNV-2 in Europe)
and unearthed SELV outputs.
The input to these units is to be provided with a
maximum 6 A fast-acting fuse in the ungrounded lead.
The input source is to be provided with reinforced
One V
The input pins of the module are not operator
Another SELV reliability test is conducted on the
whole system (combination of supply source and
subject module), as required by the safety
agencies, to verify that under a single fault,
hazardous voltages do not appear at the
module’s output.
insulation from any other hazardous voltages,
including the ac mains.
grounded, or both the input and output pins are
to be kept floating.
accessible.
module without grounding one of the output
pins. This may allow a non-SELV voltage to
appear between the output pins and ground.
IN
pin and one V
OUT
pin are to be
6