Data Sheet
September 21, 2010
EQW010-040 Series (Eighth-Brick) DC-DC Converter Power Modules
36–75Vdc Input; 1.0 to 12.0Vdc Output; 10 to 40A Output Current
Features
Compliant to RoHS EU Directive 2002/95/EC
Compatible in a Pb-free or SnPb reflow environment
High efficiency – 92% at 3.3V full load
Industry standard, DOSA compliant, Eighth brick
footprint
57.9mm x 22.9mm x 8.5mm
(2.28in x 0.9in x 0.335in)
RoHS Compliant
Applications
Distributed power architectures
Wireless networks
Access and optical network Equipment
Enterprise Networks
Latest generation IC’s (DSP, FPGA, ASIC) and
Microprocessor powered applications
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/voltage protection
Over-temperature protection
Remote sense
No minimum load required
No reverse current during output shutdown
Output Voltage adjust: 80% to 110% of V
o,nom
Operating temperature range (-40°C to 85°C)
UL*
60950-1Recognized,
CSA
†
C22.2 No. 60950-1-
‡
03 Certified, and
VDE
0805:2001-12 (EN60950-1)
Licensed
CE mark meets 73/23/EEC and 96/68/EEC
directives
§
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
**
Options
Negative Remote On/Off logic
Over current/Over temperature/Over voltage
protections (Auto-restart)
Heat plate versions (-C, -H)
Surface Mount version (-S)
Description
The EQW010/040 series DC-DC converters are designed to provide up to 40A output current in an industry standard
eighth brick package. These DC-DC converters operate over an input voltage range of 36 to 75 Vdc and provide a
single, precisely-regulated output. The output is isolated from the input, allowing versatile polarity configurations and
grounding connections. Built in filtering for both the 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.
§
This product is intended for integration into end-user equipment
** ISO is a registered trademark of the International Organization of Standards
Document No: DS06-112 ver. 1.25
PDF name: EQW010-040 Series.pdf
Data Sheet
September 21, 2010
EQW010-040 Series Power Modules
36 – 75Vdc Input; 1.0 to 12.0Vdc Output; 10 to 40A 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
Input Voltage
Continuous
Transient (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
1500
°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
, I
O
=I
O, max
)
Input No Load Current
(V
IN
= V
IN, nom
, I
O
= 0, module enabled)
Input Stand-by Current
(V
IN
= V
IN, nom
, 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
It
2
Device
All
All, except B
B
All
Symbol
V
IN
I
IN,max
I
IN,max
I
IN,No load
Min
36
Typ
48
3.2
3.4
Max
75
3.5
3.7
75
Unit
V
dc
A
dc
A
dc
mA
All
I
IN,stand-by
22
mA
0.5
As
2
All
20
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 time-delay fuse with a maximum rating of 8 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.
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POWER
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Data Sheet
September 21, 2010
EQW010-040 Series Power Modules
36 – 75Vdc Input; 1.0 to 12.0Vdc Output; 10 to 40A Output Current
Electrical Specifications
(continued)
Parameter
Nominal Output Voltage Set-point
V
IN
=V
IN, min
, I
O
=I
O, max
, T
A
=25°C)
Device
B
A
F
G
Y
M
P
S1R0
Output Voltage
(Over all 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 on nominal output
(V
IN
=V
IN, nom
,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)
RMS (5Hz to 20MHz bandwidth)
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance
All
Symbol
V
O, set
V
O, set
V
O, set
V
O, set
V
O, set
V
O, set
V
O, set
V
O, set
V
O
Min
11.76
4.90
3.23
2.45
1.76
1.47
1.18
0.98
-3.0
Typ
12.0
5.0
3.3
2.5
1.8
1.5
1.2
1.0
Max
12.24
5.10
3.37
2.55
1.84
1.53
1.22
1.02
+3.0
Unit
V
dc
V
dc
V
dc
V
dc
V
dc
V
dc
V
dc
V
dc
% V
O, set
B, A, F, G
Y, M, P, S1R0
B, A, F, G
Y, M, P, S1R0
All
0.2
5
0.2
5
1.0
% V
O, set
mV
% V
O, set
mV
% V
O, set
B
B
All, except B
All, except B
B
A
F, G, Y, M, P,
S1R0
B
A
F
G
Y, M, P, S1R0
C
O, max
C
O, max
C
O, max
I
o
I
o
I
o
I
o
I
o
0
0
0*
0
0
0
0
0
105
103
115
115
130
93.0
91.7
92.0
89.8
88.3
87.1
85.0
83.2
420
30
100
25
75
1,500
10,000
20,000
10
20
30
35
40
130
130
150
mV
rms
mV
pk-pk
mV
rms
mV
pk-pk
μF
μF
μF
A
dc
A
dc
A
dc
A
dc
A
dc
% I
o
% I
o
A
rms
%
%
%
%
%
%
%
%
kHz
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
= V
IN, nom
, T
A
=25°C
I
O
=I
O, max ,
V
O
= V
O,set
All, except G
G
All
B
A
F
G
Y
M
P
S1R0
I
O, lim
I
O, lim
I
O, s/c
η
η
η
η
η
η
η
η
f
sw
Switching Frequency
All
* Note: For 1.0V
O
(S1R0) and 1.2 V
O
(P) device codes, external capacitance, C
O
, should be 1000uF minimum to achieve monotonic start-up with
very light load (≤ 2Amp).
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3
Data Sheet
September 21, 2010
EQW010-040 Series Power Modules
36 – 75Vdc Input; 1.0 to 12.0Vdc Output; 10 to 40A Output Current
Electrical Specifications (continued)
Parameter
Dynamic Load Response
(dIo/dt=0.1A/s; V
IN
= V
IN, nom
; T
A
=25°C)
Load Change from Io= 50% to 75% or 25% to
50% of Io,max;
Peak Deviation
Settling Time (Vo<10% peak deviation)
(dIo/dt=1A/s; V
IN
= V
IN, nom
; T
A
=25°C)
Load Change from Io= 50% to 75% or 25% to
50% of Io,max;
Peak Deviation
Settling Time (Vo<10% peak deviation)
Device
Symbol
Min
Typ
Max
Unit
All
All
V
pk
t
s
3
200
% V
O, set
s
All
All
V
pk
t
s
5
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
10
Typ
1000
Max
1500
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)
Device
B
A-S
F
Y
B
A-S
F
Y
Weight
All
Symbol
FIT
FIT
FIT
FIT
MTBF
MTBF
MTBF
MTBF
Min
Typ
334
290
328
302
2,997,896
3,451,558
3,051,626
3,312,888
20.5
(0.72)
Max
Unit
10 /Hours
10 /Hours
10 /Hours
10 /Hours
Hours
Hours
Hours
Hours
g
(oz.)
9
9
9
9
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Data Sheet
September 21, 2010
EQW010-040 Series Power Modules
36 – 75Vdc Input; 1.0 to 12.0Vdc Output; 10 to 40A Output Current
Feature Specifications
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: On/Off input is set to Logic Low (Module
ON) and then input power is applied (T
delay
from
instant at which V
IN
= V
IN, min
until Vo=10% of V
O,set
)
Case 2: Input power is applied for at least 1 second
and then the On/Off input is set from OFF to ON (T
delay
=
from instant at which V
IN
=V
IN, min
until V
O
= 10% of V
O, set
).
Output voltage Rise time (time for Vo to rise from 10%
of V
o,set
to 90% of V
o, set
)
Output voltage Rise time (time for Vo to rise from 10%
of V
o,set
to 90% of V
o, set
with max ext capacitance)
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
(Max voltage drop is 0.5V)
Output Voltage Adjustment Range
Output Overvoltage Protection
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
1.0
1.2
5
10
mA
V
dc
V
dc
μA
All
B*
All
B*
All
All
T
delay
T
delay
T
delay
T
delay
T
rise
T
rise
―
―
―
―
―
―
10
25
5
25
8
8
20
30
10
30
12
12
msec
msec
msec
msec
msec
msec
All
G, Y, M,
P, S1R0
B*, A, F
All*
B
A
F
G
Y
M
P
S1R0
V
O, limit
V
O, limit
V
O, limit
V
O, limit
V
O, limit
V
O, limit
V
O, limit
V
O, limit
V
UVLO
30
30
1.5
All
V
OVLO
75
2
V
SENSE
V
SENSE
80
14
5.7
3.8
2.9
2.3
1.8
1.4
1.2
―
3
0.25
10
110
% V
O, set
Vdc
% V
O, set
% V
O, set
V
dc
V
dc
V
dc
V
dc
V
dc
V
dc
V
dc
V
dc
V
dc
V
dc
V
dc
V
dc
V
dc
V
dc
34.5
32
2
80
79
3.5
16
6.5
4.6
3.4
2.6
2.2
1.6
1.4
36
83
Input Undervoltage Lockout
Turn-on Threshold
Turn-off Threshold
Hysterisis
Input Overvoltage Lockout
Turn-on Threshold
Turn-off Threshold
Hysterisis
All
* Note: 12.0V
O
(B) device codes have an adaptable extended Turn-On Delay interval, T
delay
, as specified for B* devices. The extended T
delay
will occur
when a 12V
O
module restarts following either 1) the rapid cycling of Vin from normal levels to less than the Input Undervoltage Lockout and then back
to normal; or 2) toggling the on/off signal from on to off and back to on without removing the input voltage. The normal Turn-On Delay interval, T
delay
,
as specified for All Devices, will occur whenever a 12V
O
module restarts with input voltage removed from the module for the preceding 1 second.
12.0V
O
(B) also achieves +10% V
O, set
Remote Sense drop or trim up to 110% V
O, set
only above Vin = 40V
dc
.
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