GE Industrial Solutions EHHD015A0A User Manual

GE

Data Sheet

EHHD015A0A Hammerhead™ Series; DC-DC Converter Power Modules

18-75Vdc Input; 5Vdc, 15.0A, 75W Output

Features

 Compliant to RoHS II EU “Directive 2011/65/EU (-Z versions)

 Compliant to REACH Directive (EC) No 1907/2006

 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

RoHS Compliant

 Output Voltage adjust: 80% to 110% of V

O,nom

 Constant switching frequency

Applications

 Distributed Power Architectures

 Wireless Networks

 Access and Optical Network Equipment

 Industrial Equipment

 Positive remote On/Off logic
 Input under/over voltage 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

 ANSI/UL*60950-1-2011 and CAN/CSA† C22.2 No. 60950-1-

Options

 Negative Remote On/Off logic (preferred)

 Over current/Over temperature/Over voltage protections

(Auto-restart) (preferred)

 Heat plate versions (-H)

 Surface Mount version (-S)

07, Second Edition + A1:2011 (MOD), dated March 19, 2011;
and DIN EN 60950-1 (VDE‡ 0805 Teil 1):2011-01; EN 60950­1:2006 + A11:2009 + A1:2010, DIN EN 60950-1/A12 (VDE
0805-1/A12):2011-08; EN 60950-1/A12:2011-02, IEC 60950­1(ed.2);am1:2009

§

 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

standards

**

 ISO

9001 and ISO 14001 certified manufacturing facilities

Description

The EHHD015A0A [Hammerhead™] Series, eighth-brick, low-height power modules are isolated dc-dc converters
which provide a single, precisely regulated output voltage over an ultra wide input voltage range of 18-75V
EHHD015A0A provides 5V

nominal output voltage rated for 15Adc output current. The module incorporates GE’s vast heritage for

dc

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, enable
designers to develop cost and space efficient solutions. The module achieves typical full load efficiency greater than 90% at

=24Vdc and VIN=48Vdc. Standard features include remote On/Off, remote sense, output voltage adjustment, overvoltage,

V

IN

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

. The

dc

¤

PoE

April 4, 2013 ©2012 General Electric Company. All rights reserved. Page 1

GE

Data Sheet

EHHD015A0A Hammerhead™

Series; DC-DC Converter Power Modules

18-75Vdc Input; 5Vdc, 15.0A, 75W Output

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 V

Transient, operational (≤100 ms) All V

Operating Ambient Temperature All T

Maximum Heat Plate Operating Temperature -18H, H T

(see Thermal Considerations section)

Storage Temperature All T

Altitude* All

I/O Isolation voltage (100% factory Hi-Pot tested) All

IN

IN,trans

A

C

stg

 

-0.3 80 Vdc

-0.3 100 Vdc

-40 85 °C

-40 105 °C

-55 125 °C

4000 m

2250 Vdc

* For higher altitude applications, contact your GE Sales Representative for alternative conditions of use.

Electrical Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions.

Parameter Device Symbol Min Typ Max Unit

Operating Input Voltage All VIN 18 24/48 75 Vdc

Maximum Input Current

(VIN= V

Input No Load Current

(VIN = 48V, IO = 0, module enabled)

Input Stand-by Current All

(VIN = 48V, module disabled)

Inrush Transient All I2t 0.5 A2s

IN, min

to V

IN, max

, VO= V

O, set

, IO=I

O, max

)

All I

All I

IN,No load

I

IN,stand-by

IN

4.4 5.0 Adc

70 mA

5 8 mA

Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; V
Test configuration section)

Input Ripple Rejection (120Hz) All 50 dB

IN, min

to V

IN, max, IO

= I

Omax

; See

All 30 mA

p-p

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.

April 4, 2013 ©2012 General Electric Company. All rights reserved. Page 2

GE

Data Sheet

EHHD015A0A Hammerhead™

Series; DC-DC Converter Power Modules

18-75Vdc Input; 5Vdc, 15.0A, 75W Output

Electrical Specifications (continued)

Parameter Device Symbol Min Typ Max Unit

Nominal Output Voltage Set-point

VIN= 24V to 48V IO=I

O, max

, TA=25°C)

All V

O, set

Output Voltage

(Over all operating input voltage, resistive load, and temperature

All V

O

conditions until end of life)

Output Regulation

Line (VIN=V
Load (IO=I

Temperature (T

IN, min

O, min

to V

to I

O, max

ref=TA, min

) All

IN, max

)

to T

) All

A, max

All

Output Ripple and Noise

(VIN=V

IN, min

to V

IN, max

, IO= I

O, max

, TA=T

A, min

to T

)

A, max

RMS (5Hz to 20MHz bandwidth) All

Peak-to-Peak (5Hz to 20MHz bandwidth) All

External Capacitance All C

Output Current All I

Output Current Limit Inception (Hiccup Mode )
(VO= 90% of V
Output Short-Circuit Current

(VO≤250mV) ( Hiccup Mode )

) 5.0

O, set

All I

O, max

O

I

O, lim

O, s/c

Efficiency

VIN=24V, TA=25°C, IO=7.5A, VO = 5.0V All η 90.5 %

VIN=24V, TA=25°C, IO=15A, VO = 5.0V All η 90.5 %

VIN=48V, TA=25°C, IO=7.5A, VO = 5.0V All η 89.0 %

VIN=48V, TA=25°C, IO=15A, VO = 5.0V All η 90.0 %

Switching Frequency All f

sw

Dynamic Load Response

(dIo/dt=0.1A/s; VIN = 24V or 48V; TA=25°C; CO>100μF)

Load Change from Io= 50% to 75% or 25% to 50% of I

o,max

Peak Deviation All V

Settling Time (Vo<10% peak deviation)

All t

pk

s

4.92 5.0 5.08 V

4.85

 

 




0





10 20 mV

35 80 mV


5.15 % V

±0.2 % V
±0.2 % V
±1.0

5,000 μF

% V

dc

O, set

O, set

O, set

O, set

rms

pk-pk

0 15 Adc

16 19 24 Adc

5 A

rms

330 kHz




3

200




% V

s

O, set

Isolation Specifications

Parameter Device Symbol Min Typ Max Unit

Isolation Capacitance All C

Isolation Resistance All R

I/O Isolation Voltage (100% factory Hi-pot tested) All All

iso

iso



100

 

1000

 



2250 Vdc

pF

MΩ

General Specifications

Parameter Device Symbol Min Typ Max Unit

Calculated Reliability based upon Telcordia SR-332 Issue 2: Method I
Case 3 (I

=80%I

O

, TA=40°C, airflow = 200 lfm, 90% confidence)

O, max

All FIT 339.0

All MTBF 2,949,583 Hours

Weight (Open Frame) All 19 (0.7) g (oz.)

Weight (with Heatplate) All 30 (1.1) g (oz.)

9

10

/Hour

s

April 4, 2013 ©2012 General Electric Company. All rights reserved. Page 3

GE

Data Sheet

EHHD015A0A Hammerhead™

Series; DC-DC Converter Power Modules

18-75Vdc Input; 5Vdc, 15.0A, 75W Output

Feature Specifications

Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See
Feature Descriptions for additional information.

Parameter Device Symbol Min Typ Max Unit

Remote On/Off Signal Interface

(VIN=V
Signal referenced to V
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

Turn-On Delay and Rise Times

(IO=I

Case 1: Input power is applied for at least 1 second,

Case 2: On/Off input is set to Logic Low (Module
ON) and then input power is applied (T
instant at which V

Output voltage Rise time (time for Vo to rise from 10%
of V

Output voltage overshoot – Startup
IO= I
Remote Sense Range All V

Output Voltage Adjustment Range All 80 110 % V

Output Overvoltage Protection

Overtemperature Protection – Hiccup Auto Restart

Input Undervoltage Lockout All V

to V

IN, min

Logic Low - Remote On/Off Current All I

Logic Low - On/Off Voltage All V

Logic High Voltage – (Typ = Open Collector) All V

Logic High maximum allowable leakage current All I

O, max , VIN=VIN, nom, TA

and then the On/Off input is set from OFF to ON

= on/off pin transition until VO = 10% of V

(T

delay

to 90% of V

o,set

; VIN=V

O, max

Turn-on Threshold

Turn-off Threshold

; open collector or equivalent,

IN, max

terminal)

IN-

on/off

on/off

on/off

on/off



-0.7


 

0.3 1.0 mA


1.2 Vdc

5 V

10 μA

= 25oC)

— 12 — msec

delay

— — 150 msec

delay

rise

SENSE

O, limit

T

ref

T

ref

UVLO

— 5 12 msec

— 3 % V

10 % V

5.7



6.5 Vdc

135 OC

120 OC



17 18 V

14 15 16 Vdc

IN, min

IN

o, set

to V

)

O, set

from

= V

IN, min

until Vo=10% of V

delay

O,set

)

)

, TA = 25 oC

IN, max

All T

All T

All

All V

Open

frame

Heat

Plate

All T

dc

O, set

O, set

O, set

dc

Hysteresis 1 2 Vdc

Input Overvoltage Lockout All V
Turn-on Threshold 76 79

Turn-off Threshold

Hysteresis 1 2

OVLO

Vdc

Vdc





81 83 Vdc



April 4, 2013 ©2012 General Electric Company. All rights reserved. Page 4

GE

t

Data Sheet

EHHD015A0A Hammerhead™

Series; DC-DC Converter Power Modules

18-75Vdc Input; 5Vdc, 15.0A, 75W Output

Characteristic Curves

The following figures provide typical characteristics for the EHHD015A0A (5.0V, 15A) at 25 OC. The figures are identical for either
positive or negative remote On/Off logic.

(V) (200mV/div)

O

EFFICIENCY,  (%)

OUTPUT CURRENT, IO (A) TIME, t (200µs/div)

Figure 1. Converter Efficiency versus Output Current. Figure 4. Transient Response to 0.1A/µS Dynamic Load Change

Io(A) (5A/div) V

OUTPUT CURRENT OUTPUT VOLTAGE

from 50% to 75% to 50% of full load, Vin=48V, C

>100μF.

O

(V) (50mV/div)

O

V

OUTPUT VOLTAGE

TIME, t (2s/div)

Figure 2. Typical output ripple and noise (I

(V) (200mV/div)

O

Io(A) (5A/div) V

OUTPUT CURRENT OUTPUT VOLTAGE

TIME, t (200µs/div) TIME, t (10ms/div)

o = Io,max).

Figure 3. Transient Response to 0.1A/µS Dynamic Load
Change from 50% to 75% to 50% of full load, Vin=24V,

>100μF.

C

O

(V) (5V/div)

On/Off

(V) (2V/div) V

O

OUTPUT VOLTAGE On/Off VOLTAGE

V

TIME, t (10ms/div)

Figure 5. Typical Start-up Using Remote On/Off, negative logic
version shown (V

(V) (20V/div)

IN

(V) (2V/div) V

O

OUTPUT VOLTAGE INPUT VOLTAGE

V

Figure 6. Typical Star

o,max).

I

IN = 48V, Io = Io,max).

-up Using Input Voltage (VIN = 48V, Io =

April 4, 2013 ©2012 General Electric Company. All rights reserved. Page 5

GE



Data Sheet

EHHD015A0A Hammerhead™

18-75Vdc Input; 5Vdc, 15.0A, 75W Output

Test Configurations

Vout+

Vout-

33-10 0μF

V

CURRENT PROBE

RESISTIVE

LOAD

R

contact Rdistribution

O

R

contact Rdistribution

x 100 %

Vin +

Vin-

R

LOAD

TO OSCILLOSCOPE

L

TEST

12μH

CS 220μF

BATTERY

NOTE: M easure inpu t reflected ri pple current wi th a simula ted

E.S .R.< 0.1 

@ 20 °C 100kH z

sourc e inductanc e (L
possi ble batt ery impedan ce. Mea sure curre nt as show n
abov e.

) of 12μH. Capacito r CS offsets

TEST

Figure 7. Input Reflected Ripple Current Test Setup.

COPPER STRIP

V O (+)

SCOP E

V O ( – )

NOT E: All v oltage me asurem ents to be taken a t the mod ule

1uF

10uF

GROUND PLANE

termin als, as s hown ab ove. If sockets are used then
Kelvin c onnections are requ ired at th e module term inals
to av oid me asureme nt errors due to sock et conta ct
resistance.

Figure 8. Output Ripple and Noise Test Setup.

R

R

contact

distribution

R

R

contact

distribution

NOTE: All voltage measurements to be taken at the module

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.

Vin+

V

IN

Vin-

Figure 9. Output Voltage and Efficiency Test Setup.

V

. I

O

Efficiency

=

VIN. I

O

IN

Series; DC-DC Converter 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<0.7 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 VDE0805­1(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:

 The input source is to be provided with reinforced

insulation from any other hazardous voltages, including
the ac mains.

 One V

pin and one V

IN

pin are to be grounded, or

OUT

both the input and output pins are to be kept floating.

 The input pins of the module are not operator

accessible.

 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.

Note: Do not ground either of the input pins of the module

without grounding one of the output pins. This may
allow a non-SELV voltage to appear between the
output pins and ground.

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.

April 4, 2013 ©2012 General Electric Company. All rights reserved. Page 6