Data Sheet
August 29, 2011
EHHD006A0B Series (Eighth-Brick) DC-DC Converter Power Modules
18 - 75V
dc
Input; 12V/6A
dc
Output
Hammerhead Series™
Features
Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
Compliant to ROHS EU Directive 2002/95/EC with
lead solder exemption (non-Z versions)
Flat and high-efficiency curve
Industry standard, DOSA compliant footprint
57.9mm x 22.8mm x 7.6mm
(2.28 in x 0.9 in x 0.30 in)
Low-profile height and reduced component skyline
Ultra-wide input voltage range: 18-75 V
dc
Tightly regulated output
Remote sense
Output voltage adjust: 90% to 110% of V
O,nom
Constant switching frequency
Positive remote On/Off logic
Input under/overvoltage protection
Output overcurrent and overvoltage protection
Overtemperature protection
No reverse current during output shutdown
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
RoHS Compliant
Applications
Distributed Power Architectures
Wireless Networks
Access and Optical Network Equipment
Industrial Equipment
Options
Negative Remote On/Off logic (preferred)
Overcurrent/Overtemperature/Overvoltage
protections (Auto-restart) (preferred)
Heat plate version (-H)
Surface Mount version (-S)
Description
The EHHD006A0B [Hammerhead™] Series, eighth-brick, low-height power modules are isolated DC-DC converters
that provide a single, precisely regulated output voltage over an ultra-wide input voltage range of 18-75V
dc
. The
EHHD006A0B provides 12V
dc
nominal output voltage rated for 6A
dc
output current. The module incorporates Lineage
Power’s vast heritage for reliability and quality, while also using the latest in technology and component and process
standardization to achieve highly competitive cost. The open frame module construction, available in both surface
mount and through-hole packaging, enables designers to develop cost and space efficient solutions. The module
achieves typical full load efficiency greater than 92% at V
IN
=24V
dc
and greater than 90% at V
IN
=48V
dc
. Standard
features include remote On/Off, remote sense, output voltage adjustment, overvoltage, overcurrent and
overtemperature protection. An optional heat plate allows for external standard, eighth-brick heat sink attachment to
achieve higher output current in high temperature applications.
*
UL
is a registered trademark of Underwriters Laboratories, Inc.
CSA
is a registered trademark of Canadian Standards Association.
‡
VDE
is a trademark of Verband Deutscher Elektrotechniker e.V.
§
This product is intended for integration into end-user equipment . All of the required procedures of end-use equipment should be followed.
¤ IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Incorporated.
** ISO is a registered trademark of the International Organization of Standards
†
Document No: DS09-012 ver. 1.03
PDF name: EHHD006A0B.pdf
Data Sheet
August 29, 2011
Absolute Maximum Ratings
EHHD006A0B Series Eighth-Brick Power Modules
18 - 75Vdc Input; 12V/6A
dc
Output
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
Input Voltage
Continuous
Transient, operational (≤100 ms)
Operating Ambient Temperature
(see Thermal Considerations section)
Storage Temperature
I/O Isolation Voltage (100% factory Hi-Pot tested)
All
All
T
stg
-55
125
2250
°C
V
dc
All
All
All
V
IN
V
IN,trans
T
A
-0.3
-0.3
-40
80
100
85
V
dc
V
dc
°C
Device
Symbol
Min
Max
Unit
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load and temperature
conditions.
Parameter
Operating Input Voltage
Maximum Input Current
(V
IN
= V
IN, min
to V
IN, max
, V
O
= V
O, set
, I
O
=I
O, max
)
Input No Load Current
(V
IN
= 48V, I
O
= 0, module enabled)
Input Stand-by Current
(V
IN
= 48V, module disabled)
Inrush Transient
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; V
IN, min
to V
IN, max,
I
O
= I
Omax
; See test configuration section)
Input Ripple Rejection (120Hz)
All
Device
All
All
All
All
Symbol
V
IN
I
IN
I
IN,No load
I
IN,stand-by
It
2
Min
18
Typ
24/48
4.4
80
5
Max
75
5.0
Unit
V
dc
A
dc
mA
8
0.5
mA
As
2
All
30
mA
p-p
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 10 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.
LINEAGE
POWER
2
Data Sheet
August 29, 2011
EHHD006A0B Series Eighth-Brick Power Modules
18 - 75Vdc Input; 12V/6A
dc
Output
Electrical Specifications
(continued)
Parameter
Nominal Output Voltage Set-point
V
IN
= 24V to 48V I
O
=I
O, max
, T
A
=25°C)
Output Voltage
(Overall operating input voltage, resistive load, and
temperature conditions until end of life)
Output Regulation
Line (V
IN
=V
IN, min
to V
IN, max
)
Load (I
O
=I
O, min
to I
O, max
)
Temperature (T
ref
=T
A, min
to T
A, max
)
Output Ripple and Noise
(V
IN
=V
IN, min
to V
IN, max
, I
O
= I
O, max
, T
A
=T
A, min
to T
A, max
)
RMS (5Hz to 20MHz bandwidth)
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance
Output Current
Output Current Limit Inception (Hiccup Mode )
(V
O
= 90% of V
O, set
)
Output Short-Circuit Current
(V
O
≤250mV)
( Hiccup Mode )
Efficiency
V
IN
=24V, T
A
=25°C, I
O
=3A, V
O
= 12V
V
IN
=24V, T
A
=25°C, I
O
=6A, V
O
= 12V
V
IN
=48V, T
A
=25°C, I
O
=3A, V
O
= 12V
V
IN
=48V, T
A
=25°C, I
O
=6A, V
O
= 12V
Switching Frequency
Dynamic Load Response
(dI
o
/dt=0.1A/s; V
IN
= 24V or 48V; T
A
=25°C;
C
O
>100μF)
Load Change from Io= 50% to 75% or 25% to 50% of
I
o,max
Peak Deviation
Settling Time (Vo<10% peak deviation)
Device
All
All
Symbol
V
O, set
V
O
Min
11.80
11.64
Typ
12.00
Max
12.24
12.36
Unit
V
dc
V
dc
All
All
All
±0.2
±0.2
±1.0
% V
O, set
% V
O, set
% V
O, set
All
All
All
All
All
All
C
O, max
I
O
I
O, lim
I
O, s/c
0
0
6.6
25
75
50
200
2,000
6
mV
rms
mV
pk-pk
μF
A
dc
A
dc
A
rms
7.8
5
9.0
All
All
All
All
All
η
η
η
η
f
sw
90.0
92.5
90.0
90.5
280
%
%
%
%
kHz
All
All
V
pk
t
s
3
200
% V
O, set
s
Isolation Specifications
Parameter
Isolation Capacitance
Isolation Resistance
I/O Isolation Voltage (100% factory Hi-pot tested)
Device
All
All
All
Symbol
C
iso
R
iso
All
Min
100
Typ
1000
Max
2250
Unit
pF
MΩ
V
dc
General Specifications
Parameter
Calculated Reliability based upon Telcordia SR-332
Issue 2: Method
I
Case 3 (I
O
=80%I
O, max
, T
A
=40°C,
airflow = 200 lfm, 90% confidence)
Weight (Open Frame)
Weight (with Heat Plate)
Device
All
All
All
All
Symbol
FIT
MTBF
Min
Typ
381.7
2,619,994
19 (0.7)
30 (1.1)
Max
Unit
10 /Hours
Hours
g (oz.)
g (oz.)
9
LINEAGE
POWER
3
Data Sheet
August 29, 2011
Feature Specifications
EHHD006A0B Series Eighth-Brick Power Modules
18 - 75Vdc Input; 12V/6A
dc
Output
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load and temperature
conditions. See Feature Descriptions for additional information.
Parameter
Remote On/Off Signal Interface
(V
IN
=V
IN, min
to V
IN, max
; open collector or equivalent,
Signal referenced to V
IN-
terminal)
Negative Logic: device code suffix “1”
Logic Low = module On, Logic High = module Off
Positive Logic: No device code suffix required
Logic Low = module Off, Logic High = module On
Logic Low - Remote On/Off Current
Logic Low - On/Off Voltage
Logic High Voltage – (Typ = Open Collector)
Logic High maximum allowable leakage current
Turn-On Delay and Rise Times
(I
O
=I
O, max ,
V
IN
=V
IN, nom,
T
A
= 25 C)
Case 1: Input power is applied for at least 1 second
then the On/Off input is set from OFF to ON
(T
delay
= On/Off pin transition until V
O
= 10% of V
O, set
)
Case 2: On/Off input is set to Logic Low (Module
ON) then input power is applied
(T
delay
= V
IN
reaches V
IN, min
until V
o
=10% of V
O,set
)
Output voltage Rise time (time for V
o
to rise from 10%
of V
o,set
to 90% of V
o, set
)
Output Voltage Overshoot – Startup
I
O
= I
O, max
; V
IN
=V
IN, min
to V
IN, max
, T
A
= 25 C
Remote Sense Range
Output Voltage Adjustment Range
Output Overvoltage Protection
Overtemperature Protection – Hiccup Auto Restart
Open
frame
Heat
Plate
All
T
ref
T
ref
V
UVLO
14
1
All
V
OVLO
76
1
77
79
2
81
Vdc
Vdc
Vdc
17
15.5
2.0
18
16
V
dc
V
dc
V
dc
135
120
O
o
o
Device
Symbol
Min
Typ
Max
Unit
All
All
All
All
I
on/off
V
on/off
V
on/off
I
on/off
-0.7
2.5
0.15
0.6
6.7
25
mA
V
dc
V
dc
μA
All
T
delay
―
12
―
msec
All
All
All
All
All
All
T
delay
T
rise
―
―
25
15
―
35
25
3
10
msec
msec
% V
O, set
% V
O, set
% V
O, set
V
dc
V
SENSE
90
V
O, limit
13.8
110
16.5
C
C
Heat Plate
Input Undervoltage Lockout
Turn-on Threshold
Turn-off Threshold
Hysteresis
Input Overvoltage Lockout
Turn-on Threshold
Turn-off Threshold
Hysteresis
O
LINEAGE
POWER
4
Data Sheet
August 29, 2011
Characteristic Curves
EHHD006A0B Series Eighth-Brick Power Modules
18 - 75Vdc Input; 12V/6A
dc
Output
The following figures provide typical characteristics for the EHHD006A0B (12.0V, 6A) at 25 C. The figures are
identical for either positive or negative remote On/Off logic.
OUTPUT VOLTAGE OUTPUT CURRENT
o
EFFICIENCY,
(%)
OUTPUT CURRENT, I
O
(A)
V
O
(V) (200mV/div)
Io(A) (1A/div)
TIME, t (200µs/div)
Figure 1. Converter Efficiency versus Output Current.
Figure 4. Transient Response to 0.1A/µS Dynamic
Load Change from 50% to 75% to 50% of full load,
Vin=48V, C
O
>100μF.
On/Off VOLTAGE
OUTPUT VOLTAGE
V
On/Off
(V) (5V/div)
V
O
(V) (5V/div)
OUTPUT VOLTAGE
V
O
(V) (100mV/div)
TIME, t (2s/div)
TIME, t (10ms/div)
Figure 2. Typical output ripple and noise (I
o
= I
o,max
).
Figure 5. Typical Start-up Using Remote On/Off,
negative logic version shown (V
IN
= 24V or 48V, I
o
=
I
o,max
).
INPUT VOLTAGE
OUTPUT VOLTAGE
V
IN
(V) (20V/div)
V
O
(V) (5V/div)
OUTPUT VOLTAGE OUTPUT CURRENT
V
O
(V) (200mV/div)
Io(A) (1A/div)
TIME, t (200µs/div)
TIME, t (10ms/div)
Figure 3. Transient Response to 0.1A/µS Dynamic
Load Change from 50% to 75% to 50% of full load,
Vin=24V, C
O
>100μF.
Figure 6. Typical Start-up Using Input Voltage (V
IN
=
24V, I
o
= I
o,max
).
LINEAGE
POWER
5
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