Data Sheet
May 6, 2011
ESTW015A0F Series (Eighth-Brick) DC-DC Converter Power Modules
36–75Vdc Input; 3.3Vdc Output; 15A Output Current
* 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: DS09-004 ver.1.03
PDF name: ESTW015A0F.pdf
STINGRAY™ 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)
Delivers up to 15A Output current
High efficiency 91% at full load (Vin=48Vdc)
Full load at TA=85 oC for airflow of 1 m/s(200 LFM)
or greater
Industry standard, DOSA compliant footprint
57.9mm x 22.8mm x 8.5mm
(2.28 in x 0.9 in x 0.335 in)
Wide input voltage range: 36-75 Vdc
Tightly regulated output
Constant switching frequency
Positive remote On/Off logic
Input under voltage protection
Output overcurrent and overvoltage protection
Over-temperature protection
Remote sense
Output Voltage adjust: 80% to 110% of V
o,nom
Wide operating temperature range (-40°C to 85°C)
UL* 60950-1, 2nd Ed. Recognized, CSA† C22.2 No.
60950-1-07 Certified, and VDE‡ (EN60950-1, 2nd
Ed.) 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
Applications
Distributed power architectures
Wireless networks
Access and optical network Equipment
Enterprise Networks including Power over Ethernet
(PoE)
Latest generation IC’s (DSP, FPGA, ASIC) and
Microprocessor powered applications
Options
Negative Remote On/Off logic (-1 option,
preferred/standard)
Surface Mount version (-S option)
Auto-restart (-4 option, preferred/standard)
Trimmed leads (-6 or -8 options)
Description
The Lineage Power® Stingray™ Series, ESTW015A0F, Eighth-brick power modules are cost optimized isolated dc-dc
converters that can deliver up to 15A of output current and provide a precisely regulated output voltage over a wide range of
input voltages (Vin = 36 -75Vdc). The module achieves full load efficiency of 91% at 3.3Vdc output voltage. 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.
RoHS Compliant
Data Sheet
May 6, 2011
ESTW015A0F Series Eighth-Brick Power Modules
36–75Vdc Input; 3.3Vdc Output; 15A Output
Parameter
Device
Symbol
Min
Max
Unit
Input Voltage
Continuous
All
V
IN
-0.3
80
Vdc
Transient, operational (≤100 ms)
All
V
IN,trans
-0.3
100
Vdc
Operating Ambient Temperature
All
TA -40
85
°C
(see Thermal Considerations section)
Storage Temperature
All
T
stg
-55
125
°C
I/O Isolation voltage (100% factory Hi-Pot tested)
All
2250
Vdc
Parameter
Device
Symbol
Min
Typ
Max
Unit
Operating Input Voltage
All
VIN
36
48
75
Vdc
Maximum Input Current
All
I
IN,max
2.0
Adc
(VIN= V
IN, min
to V
IN, max
, IO=I
O, max
)
Input No Load Current
All
I
IN,No load
30 mA
(VIN = V
IN, nom
, IO = 0, module enabled)
Input Stand-by Current
All
I
IN,stand-by
6 8 mA
(VIN = V
IN, nom
, module disabled)
Inrush Transient
All
I2t
1
A2s
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 1μH source impedance; V
IN, min
to V
IN, max,
IO= I
Omax
; See Test configuration section)
All
30 mA
p-p
Input Ripple Rejection (120Hz)
All
50 dB
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.
Electrical Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions.
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 5 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
May 6, 2011
ESTW015A0F Series Eighth-Brick Power Modules
36–75Vdc Input; 3.3Vdc Output; 15A Output
Parameter
Device
Symbol
Min
Typ
Max
Unit
Nominal Output Voltage Set-point
VIN=V
IN, nom
, IO=I
O, max
, TA=25°C)
All
V
O, set
3.25
3.3
3.35
V
dc
Output Voltage
All
VO 3.2 3.4
V
dc
(Over all operating input voltage, resistive load, and
temperature conditions until end of life)
Output Regulation
Line (VIN=V
IN, min
to V
IN, max
)
All
±0.1
% V
O, set
Load (IO=I
O, min
to I
O, max
)
All
10
mV
Temperature (T
ref=TA, min
to T
A, max
)
All
±0.2
% V
O, set
Output Ripple and Noise on nominal output
(VIN=V
IN, nom
,IO= I
O, max
, TA=T
A, min
to T
A, max
)
RMS (5Hz to 20MHz bandwidth)
All
8
20
mV
rms
Peak-to-Peak (5Hz to 20MHz bandwidth)
All
40
75
mV
pk-pk
External Capacitance
All
C
O, max
0 5,000
μF
Output Current
All
Io 0 15.0
Adc
Output Current Limit Inception (Hiccup Mode )
All
I
O, lim
19 Adc
(VO= 90% of V
O, set
)
Output Short-Circuit Current (VO≤250mV)
All
I
O, s/c
60
2.5
A
pk
A
AVG
( Hiccup Mode)
Efficiency
VIN= V
IN, nom
, TA=25°C, IO=I
O, max , VO
= V
O,set
All η 90.0
91.0 %
VIN= V
IN, nom
, TA=25°C, IO=10A
, VO
= V
O,set
All η 90.0
91.0 %
VIN= V
IN, nom
, TA=25°C, IO=4A
, VO
= V
O,set
All η 85.5
87.0 %
Switching Frequency
All
f
sw
355 kHz
Dynamic Load Response
(dIo/dt=0.1A/ s; VIN = V
IN, nom
; TA=25°C)
Load Change from Io= 50% to 75% or 25% to 50% of
I
o,max
Peak Deviation
All
V
pk
210 mV
Settling Time (Vo<10% peak deviation)
All
t
s
200
s
Parameter
Device
Symbol
Min
Typ
Max
Unit
Isolation Capacitance
All
C
iso
1000 pF
Isolation Resistance
All
R
iso
10
MΩ
I/O Isolation Voltage (100% factory Hi-pot tested)
All
All
2250
Vdc
Parameter
Device
Symbol
Min
Typ
Max
Unit
Calculated Reliability based upon Telcordia SR-332
Issue 2: Method I Case 3 (IO=80%I
O, max
, TA=40°C,
airflow = 200 lfm, 90% confidence)
All
FIT
212.2
109/Hours
All
MTBF
4,713,305
Hours
Weight
All
15.2
(0.6)
g
(oz.)
Electrical Specifications (continued)
Isolation Specifications
General Specifications
LINEAGE POWER 3
Data Sheet
May 6, 2011
ESTW015A0F Series Eighth-Brick Power Modules
36–75Vdc Input; 3.3Vdc Output; 15A Output
Parameter
Device
Symbol
Min
Typ
Max
Unit
Remote On/Off Signal Interface
(VIN=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 (V
on/off
= -0.7 Vdc)
All
I
on/off
0.15
mA
Logic Low - On/Off Voltage
All
V
on/off
-0.7 0.6
Vdc
Logic High Voltage (I
on/off
= 0Adc)
All
V
on/off
2.4 15.0
Vdc
Logic High maximum leakage current
All
I
on/off
25
μA
Turn-On Delay1 and Rise Times
(IO=I
O, max , VIN=VIN, nom, TA
= 25oC)
Case 1: Input power is applied for >1 second and then
the On/Off input is set to ON (T
delay
= time from instant
On/Off signal is ON until VO = 10% of V
O, set
)
All
T
delay
― 12 ― msec
Case 2: On/Off input is set to Logic Low (Module
ON) and then input power is applied (T
delay
= time
at which VIN = V
IN, min
until Vo=10% of V
O,set
)
All
T
delay
― 20 ― msec
Output voltage Rise time (time for Vo to rise from 10%
of V
o,set
to 90% of V
o, set
)
All
T
rise
― 4 ―
msec
Output voltage overshoot – Startup
All
― 5 % V
O, set
IO= I
O, max
; VIN=V
IN, min
to V
IN, max
, TA = 25 oC
Remote Sense Range
All
V
SENSE
10
% V
O, set
Output Voltage Adjustment Range
All -20 +10
% V
O, set
Output Overvoltage Protection (CO=220μF)
All
V
O, limit
3.9 5.0
Vdc
Overtemperature Protection – Hiccup Auto Restart
All
T
ref
138
O
C
Input Undervoltage Lockout
All
V
UVLO
Turn-on Threshold
32
34.5
Vdc
Turn-off Threshold
27.5
30 Vdc
Hysteresis
1
2 Vdc
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions for additional information.
1. The module has an adaptable extended Turn-On Delay interval, T
either: 1) the rapid cycling of Vin from normal levels to less than the Input Undervoltage Lockout (which causes module shutdown), 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
will occur whenever a module restarts with input voltage removed from the module for the preceding 1 second.
LINEAGE POWER 4
, of 25mS. The extended T
delay
will occur when the module restarts following
delay
delay
,
Data Sheet
May 6, 2011
ESTW015A0F Series Eighth-Brick Power Modules
36–75Vdc Input; 3.3Vdc Output; 15A Output
EFFICIENCY, (%)
OUTPUT CURRENT OUTPUT VOLTAGE
Io(A) (5A/div) V
O
(V) (200mV/div)
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 from 50% to 75% to 50% of full load.
OUTPUT VOLTAGE
V
O
(V) (20mV/div)
On/Off VOLTAGE OUTPUT VOLTAGE
V
O
(V) (2V/div) V
On/Off
(V) (1V/div)
TIME, t (2 s/div)
TIME, t (10ms/div)
Figure 2. Typical output ripple and noise (VIN = VIN,NOM,
Io = Io,max).
Figure 5. Typical Start-up Using Remote On/Off,
negative logic version shown (VIN = VIN,NOM, Io = Io,max).
OUTPUT CURRENT OUTPUT VOLTAGE
Io(A) (5A/div) V
O
(V) (200mV/div)
INPUT VOLTAGE OUTPUT VOLTAGE
V
O
(V) (20V/div V
IN
(V) (1V/div)
TIME, t (200µs/div)
TIME, t (5ms/div)
Figure 3. Transient Response to 0.1A/µS Dynamic
Load Change from 25% to 50% to 25% of full load.
Figure 6. Typical Start-up Using Input Voltage (VIN =
VIN,NOM, Io = Io,max).
Characteristic Curves
The following figures provide typical characteristics for the ESTW015A0F (3.3V, 15A) at 25oC. The figures are
identical for either positive or negative remote On/Off logic.
LINEAGE POWER 5
Data Sheet
May 6, 2011
ESTW015A0F Series Eighth-Brick Power Modules
36–75Vdc Input; 3.3Vdc Output; 15A Output
TO OSCILLOSCOPE
CURRENT PROBE
L
TEST
12μH
BATTERY
CS 220μF
E.S.R.<0.1
@ 20°C 100kHz
33μF
Vin+
Vin-
NOTE: Measure input reflected ripple current with a simulated
source inductance (L
TEST
) of 12μH. Capacitor CS offsets
possible battery impedance. Measure current as shown
above.
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.
V O (+)
V O ( – )
0.01uF
RESISTIVE
LOAD
SCOPE
COPPER STRIP
GROUND PLANE
10uF
0.1uF
Vout+
Vout-
Vin+
Vin-
R
LOAD Rcontact Rdistribution
R
contact Rdistribution Rcontact
R
contact Rdistribution
R
distribution
V
IN
V
O
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.
=
VO.
I
O
VIN.
I
IN
x 100 % Efficiency
Test Configurations
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 33μF
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
Figure 7. Input Reflected Ripple Current Test
Setup.
Figure 8. Output Ripple and Noise Test Setup.
Figure 9. Output Voltage and Efficiency Test
Setup.
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 VDE0805-1(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 VIN pin and one V
pin are to be grounded,
OUT
or 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 5 A fast-acting fuse in the ungrounded lead.
LINEAGE POWER 6
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