GE
Data Sheet
EHW007A0B Series Eighth-Brick Power Modules
36–75Vdc Input; 12.0Vdc Output; 7A Output Current
Features
RoHS Compliant
Compliant to RoHS EU Directive 2011/65/EU (Z
versions)
Compliant to RoHS EU Directive 2011/65/EU under
exemption 7b (Lead solder exemption). Exemption
7b will expire after June 1, 2016 at which time this
produc twill no longer be RoHS compliant (non-Z
versions)
Compliant to ROHS EU Directive 2002/95/EC with
lead solder exemption (non-Z versions)
High efficiency 92.5% at 12.0V full load (Vin=48Vdc)
Industry standard, DOSA compliant footprint
58.4mm x 22.8mm x 8.1mm
Applications
Distributed Power Architectures
Wireless Networks
Access and Optical Network Equipment
Enterprise Networks including Power over Ethernet (PoE)
Options
Negative Remote On/Off logic
Over current/Over temperature/Over voltage protections
(Auto-restart)
Heat plate version (-H)
Surface Mount version (-S)
(2.30 in x 0.9 in x 0.32 in)
Low profile height and reduced component skyline
Wide input voltage range: 36-75 Vdc
Tightly regulated output
Constant switching frequency
Positive remote On/Off logic
Input under/over voltage protection
Output overcurrent and overvoltage protection
Over-temperature protection
Remote sense
No reverse current during output shutdown
Output Voltage adjust: 90% to 110% of Vo,nom
Wide operating temperature range (-40°C to 85°C)
Suitable for cold wall cooling using suitable Gap
Pad applied directly to top side of module
UL*Recognized to UL60950-1, CAN/CSA† C22.2
No.60950-1, and EN60950-1(VDE ‡ 0805-1) Licensed
CE mark meets 2006/95/EC directive§
Meets the voltage and current requirements for
ETSI 300-132-2 and complies with and licensed for
Basic insulation rating per EN60950-1
2250 Vdc Isolation tested in compliance with IEEE
802.3¤ PoE standards
ISO**9001 and ISO 14001 certified manufacturing
facilities
Description
The EHW007A0B, Eighth-brick low-height power module is an isolated dc-dc converters that can deliver up to 7A of
output current and provide a precisely regulated output voltage of 12.0V over a wide range of input voltages (VIN = 36 75Vdc). The modules achieve typical full load efficiency of 92.5%. The open frame modules construction, available in both
surface-mount and through-hole packaging, enable designers to develop cost and space efficient solutions.
Standard features include remote On/Off, remote sense, output voltage adjustment, overvoltage, overcurrent and
overtemperature protection.
October 1, 2015
©2012 General Electric Company. All rights reserved.
GE
Data Sheet
EHW007A0B Series Eighth-Brick Power Modules
36–75Vdc Input; 12.0Vdc Output; 7A Output Current
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress
ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the
operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the
device reliability.
Parameter
Device
Symbol
Min
Max
Unit
Input Voltage
Continuous
All
VIN
-0.3
80
Vdc
Transient, operational (≤100 ms)
All
VIN,trans
-0.3
100
Vdc
All
TA
-40
85
°C
Storage Temperature
All
Tstg
-55
125
°C
I/O Isolation voltage (100% factory Hi-Pot tested)
All
2250
Vdc
Operating Ambient Temperature
(see Thermal Considerations section)
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.
Parameter
Operating Input Voltage
Maximum Input Current
(VIN= VIN, min to VIN, max, IO=IO, max)
Input No Load Current
(VIN = VIN, nom, IO = 0, module enabled)
Input Stand-by Current
Device
Symbol
Min
Typ
Max
Unit
All
VIN
36
48
75
Vdc
All
IIN,max
2.75
3.0
Adc
All
IIN,No load
70
IIN,stand-by
5
All
(VIN = VIN, nom, module disabled)
I2t
mA
8
mA
0.5
A2s
Inrush Transient
All
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; VIN, min to VIN, max, IO=
IOmax ; See Test configuration section)
All
30
mAp-p
Input Ripple Rejection (120Hz)
All
50
dB
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This power module can be used in a wide variety of applications, ranging from simple standalone operation to an
integrated part of sophisticated power architectures. To preserve maximum flexibility, internal fusing is not included,
however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a
fast-acting fuse with a maximum rating of 6 A (see Safety Considerations section). Based on the information provided in this
data sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to
the fuse manufacturer’s data sheet for further information.
October 1, 2015
©2012 General Electric Company. All rights reserved.
Page 2
GE
Data Sheet
EHW007A0B Series Eighth-Brick Power Modules
36–75Vdc Input; 12.0Vdc Output; 7A Output Current
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
Typ
Max
Unit
All
VO, set
11.8
12.0
12.24
Vdc
All
VO
11.64
12.36
% VO, set
All
All
All
±0.2
±0.2
±1.0
% VO, set
% VO, set
% VO, set
All
20
30
mVrms
All
50
100
mVpk-pk
Nominal Output Voltage Set-point
VIN=VIN, min, IO=IO, max, TA=25°C)
Output Voltage
(Over all operating input voltage, resistive load, and
temperature conditions until end of life)
Output Regulation
Line (VIN=VIN, min to VIN, max)
Load (IO=IO, min to IO, max)
Temperature (Tref=TA, min to TA, max)
Output Ripple and Noise on nominal output
(VIN=VIN, nom ,IO= IO, max , TA=TA, min to TA, max)
RMS (5Hz to 20MHz bandwidth)
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance
All
CO, max
0
2,000
μF
Output Current
Output Current Limit Inception (Hiccup Mode )
(VO= 90% of VO, set)
Output Short-Circuit Current
(VO≤250mV) ( Hiccup Mode )
Efficiency
All
Io
0
7
Adc
All
IO, lim
105
120
130
% Io
All
IO, s/c
5
Arms
VIN= VIN, nom, TA=25°C, IO=IO, max , VO= VO,set
All
η
92.5
%
VIN= VIN, nom, TA=25°C, IO=0.5IO, max , VO= VO,set
All
η
91.5
%
All
fsw
400
kHz
Switching Frequency
Dynamic Load Response
(dIo/dt=0.1A/s; VIN = VIN, nom; TA=25°C)
Load Change from Io= 50% to 75% or 25% to 50% of
Io,max
Peak Deviation
Settling Time (Vo