Data Sheet
August 12, 2010
EQD075 Series (Eighth-Brick)DC-DC Converter Power Modules
18- 60Vdc Input; 3.3 to 5.0Vdc Output; 75W
RoHS Compliant
Features
Applications
Distributed power architectures
Wireless Networks
Optical and Access Network Equipment
Enterprise Networks
Options
Positive logic, Remote On/Off
Auto restart after fault protection shutdown
Pin length
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)
High efficiency – 92% at 5.0Vo, full load, 24Vin
Industry standard Eighth brick footprint and pin out
57.9 mm x 22.8 mm x 8.5 mm
(2.28 in. x 0.90 in. x 0.335 in.)
3:1 Input voltage range: 18 - 60 Vdc
Input under/overvoltage protection
Output overcurrent/voltage protection
Over-temperature protection
Tightly regulated output
Remote sense
No reverse current during output shutdown
Negative logic, Remote On/Off
Output voltage programmable from 3.0 Vdc to
5.5Vdc
Input-to-output isolation (Basic Insulation: 1500V)
Wide operating temperature range (-40°C to 85°C)
Meets conducted emissions requirements of
FCC/EN55022 Class A without external filter
Within FCC and VDE Class A Radiated Limits
UL* 60950-1Recognized, CSA† C22.2 No. 60950-103 Certified, and VDE‡ 0805:2001-12 (EN60950-1)
Licensed
Meets the voltage and current requirements for ETSI
300-132-2 and complies with and licensed for Basic
insulation rating per EN60950-1
ISO** 9001 and ISO 14001 certified manufacturing
facilities
Description
The EQD075 series DC-DC converters are a new generation of open-frame DC/DC power modules designed to
support a 3:1 input voltage range, that allows operation in both 24V or 48V nominal input voltage systems, thus
eliminating the need for separate power modules for each input voltage range. These single output DC-DC
converters operate over an input voltage range of 18 to 60 Vdc. The series is also designed to provide a wide output
voltage set/trim range of 3.0 to 5.5Vdc, with output current up to 20A at 3.3Vdc or 15A at 5.0Vdc in an industry
standard eighth brick package. The output is isolated from the input, allowing versatile polarity configurations and
grounding connections. Built in filtering for both input and output minimizes the need for external filtering.
* 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.
** ISO is a registered trademark of the International Organization of Standards
‡
Document No: DS05-031 ver. 1.31
PDF name: EQD075A.pdf
Data Sheet
August 12, 2010
EQD075 Series Single Output: Eighth Brick Power Modules:
18-60Vdc Input; 3.3 to 5.0Vdc Output; 75W
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
A
VIN
-0.3
60
Vdc
VIN, trans
-0.3
75
Vdc
A
TA
-40
85
°C
A
Tstg
-55
125
°C
1500
Vdc
Transient (100 ms)
Operating Ambient Temperature
(see Thermal Considerations section)
Storage Temperature
I/O Isolation (100% factory Hi-Pot tested)
Input - Output
A
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
Parameter
Device
Symbol
Min
Typ
Max
Unit
A
VIN
18
24/48
60
Vdc
A
IIN,max
6
Adc
A
IIN, Stby
25
mA
A
IIN, NL
110
mA
Inrush Transient
A
It
2
1
As
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance;
o
Ta 25 C, Cin = 33μF)
A
30
mAp-p
Input Ripple Rejection (100 - 120Hz)
A
Operating Input Voltage
Maximum Input Current
(VIN=0 to VIN, max , Vo = Vo,set, IO=IO, max )
Input Stand-by Current
Module on / off disabled (VIN = VIN, nom, Vo = 0 V)
Input No Load Current
Module on / off enabled (VIN = VIN, nom, Io = 0 A)
50
2
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 being
part of a complex power architecture. 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 very
fast acting surface mount fuse with a maximum rating of 6.3 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 12, 2010
EQD075 Series Single Output: Eighth Brick Power Modules:
18-60Vdc Input; 3.3 to 5.0Vdc Output; 75W
Electrical Specifications (continued)
Parameter
Output Voltage Set-point
Device
Symbol
Min
A
VO, set
-1.6
A
VO
-3
Typ
Max
Unit
+1.6
% VO, set
+3
% VO
(VIN = VIN, min=24/48, IO =IO, max, TA =25°C)
Output Voltage
-
(Over all line, load, and
Temp Conditions Until end of life)
Output Regulation
Line (VIN = VIN, min to VIN, max)
A
0.05
0.2
% VO, nom
Load (IO = IO, min to IO, max)
A
0.05
0.2
% VO, nom
Temperature (Tref =TA, min to TA, max)
A
0.25
1
% VO, nom
RMS (5Hz to 20MHz bandwidth)
A
5
20
mVrms
Peak-to-Peak (5Hz to 20MHz bandwidth)
A
50
80
mVpk-pk
CO
0
5000
μF
Output Ripple and Noise on nominal output
(VIN =VIN, nom and IO = IO, min to IO, max,
Cout = 1μF ceramic // 10μF Tantalum capacitor)
3.3 to 5.0V output
External Capacitance
ESR ≥ 10 mΩ
A
Output Current
@ Vo = 3.3V
A
Io
0
20
A dc
@ Vo = 5V
A
Io
0
15
A dc
Output Current Limit Inception (Hiccup Mode)
(Vo = 95% Vo, set )
A
IO, lim
105
115
150
% Io, max
Output Short-Circuit Current
A
IO, s/c
150
% Io, max
@ Vo = 3.3V, IO = 20A
A
η
87
%
@ Vo = 5V, IO = 15A
A
η
92
%
@ Vo = 3.3V, IO = 20A
A
η
88
%
@ Vo = 5V, IO = 15A
A
η
90
A
fsw
o
VO ≤ 250 mV @ 25 C
Efficiency
VIN= 24V, TA=25°C, IO= IO, max A
VIN= 48V, TA=25°C, IO= IO, max A
Switching Frequency
LINEAGE POWER
160
%
KHz
3
Data Sheet
August 12, 2010
EQD075 Series Single Output: Eighth Brick Power Modules:
18-60Vdc Input; 3.3 to 5.0Vdc Output; 75W
Electrical Specifications (continued)
Parameter
Device
Symbol
Min
A
Vpk
ts
Vpk
ts
Typ
Max
Unit
2
4
%Vo
80
150
s
2
4
%Vo
80
150
s
Dynamic Load Response
(dIo/dt= 1A / 10s; VIN = VIN, nom; TA=25°C)
Load Change from Io= 50% to 75% of Io,max
Peak Deviation
Settling Time (Vo