GE
36-75Vdc Input; 3.3Vdc, 15A Output
Data Sheet
KSTW015A0F Barracuda™ Series; DC-DC Converter Power Modules
RoHS Compliant
Features
Compliant to RoHS II EU “Directive 2011/65/EU (-Z versions)
Compliant to REACH Directive (EC) No 1907/2006
Wide Input Voltage Range, 36V
dc
to 75V
dc
No minimum load
High efficiency – 90.5% at full load (V
IN
=48V
dc
)
Constant switching frequency
Low output ripple and noise
Small Size and low profile, follows DOSA standard 1/16th
footprint
33.0 mm x 22.9 mm x 9.3 mm
(1.30 in x 0.9 in x 0.37 in)
Surface mount (SMT) or Through hole (TH)
Reflow process compliant, both SMT and TH versions
Positive Remote On/Off logic
Output overcurrent/voltage protection (hiccup)
Over-temperature protection
Output Voltage adjust: 80% to 110% of V
o,nom
Wide operating temperature range (-40°C to 85°C)
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
Applications
Wireless Networks
Hybrid power architectures
Optical and Access Network Equipment
Enterprise Networks including Power over Ethernet (PoE)
Industrial markets
Options
Negative Remote On/Off logic (preferred)
Surface Mount/Tape and Reel (-SR Suffix)
Auto-restart Over current/Over voltage protections
(preferred)
Shorter through hole pin trim
Description
The KSTW015A0F series power modules are isolated DOSA compliant 1/16
th
brick dc-dc converters that operate over a wide input
voltage range of 36 V
dc
-75V
dc
and provide a single precisely regulated output voltage at 3.3V
dc
. The output is fully isolated from
the input, allowing versatile polarity configurations and grounding connections. The modules exhibit high efficiency of 90.5%
typical at full load. Built-in filtering for both input and output minimizes the need for external filtering. The module is fully self-
protected with output over-current and over-voltage, over-temperature and input under voltage shutdown control. Optional
features include negative or positive on/off logic and SMT connections
*
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.
April 1, 2013
©2012 General Electric Company. All rights reserved.
Page 1
GE
36-75Vdc Input; 3.3Vdc, 15A Output
Absolute Maximum Ratings
Data Sheet
KSTW015A0F Barracuda™ Series; DC-DC Converter Power Modules
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 (100ms)
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
Vdc
Device
All
All
All
Symbol
V
IN
V
IN, trans
T
A
Min
-0.3
-0.3
-40
Max
80
100
85
Unit
Vdc
Vdc
°C
Electrical Specifications
Unless otherwise indicated, specifications apply at V
IN
= 48V
dc
, resistive load, and T
A
= 25°C conditions.
Parameter
Operating Input Voltage
Input No Load Current
(V
IN
= 48V
dc
I
O
= 0A, module enabled)
Input Stand-by Current
(V
IN
= 48V
dc
, module disabled)
Maximum Input Current (V
IN
=36V
dc
, I
O
= I
O,MAX
)
Inrush Transient
Input Reflected Ripple Current, peak-to-peak
(5Hz to 20MHz, 12μH source impedance; V
IN
=0V to 75V
dc
, I
O
= I
Omax
;
see Test configuration section)
Input Ripple Rejection (120Hz)
EMC, EN55022
Device
All
All
All
All
All
All
All
Symbol
V
IN
I
IN,No load
I
IN,stand-by
I
IN, MAX
I
2
t
30
60
See EMC Considerations section
Min
36
Typ
48
40
6
Max
75
50
8
1.6
0.05
Unit
V
dc
mA
mA
A
dc
A
2
s
mA
p-p
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
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 fast-acting fuse with a maximum rating of 6A
(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 1, 2013
©2012 General Electric Company. All rights reserved.
Page 2
GE
36-75Vdc Input; 3.3Vdc, 15A Output
Electrical Specifications
(continued)
Data Sheet
KSTW015A0F Barracuda™ Series; DC-DC Converter Power Modules
Unless otherwise indicated, specifications apply at V
IN
= 48Vdc, resistive load, and T
A
= 25°C conditions.
Parameter
Output Voltage Set-point
(V
IN
=48V
dc
, I
O
=I
O, max
,)
Output Voltage
(Over all operating input voltage, resistive load, and temperature
conditions until end of life)
Adjustment Range
Selected by external resistor
Remote Sense Range
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
Measured with 10uF Tantalum||1uF ceramic
(V
IN
=48V
dc
, I
O
=80%I
O, max
)
RMS (5Hz to 20MHz bandwidth)
Peak-to-Peak (5Hz to 20MHz bandwidth)
External Capacitance (see Note 1 in Feature Specifications)
Output Current
(V
IN
=36V to 75V)
Output Current Limit Inception (Hiccup Mode)
(V
IN
=36V to 75V)
Output Short-Circuit Current (V
O
≤
250 mV)
Efficiency (V
IN
=48V
dc
, I
O
=I
O, max
)
Switching Frequency (Fixed)
Dynamic Load Response
(Io/t=0.1A/s)
Load Change from Io= 50% to 75% or 25% to 50% of I
o,max
:
Peak Deviation
Settling Time (Vo<10% peak deviation)
All
All
V
pk
t
s
3.0
400
% V
O, set
s
All
All
All
All
I
O, lim
I
O, s/c
η
f
sw
16.5
89.5
2.5
90.5
450
21
A
dc
A
rms
%
kHz
Device
All
All
All
All
All
All
All
0.05
0.05
Symbol
V
O, set
V
O
V
O, adj
Min
3.25
-3.0
-20
Typ
3.30
Max
3.35
+3.0
+10
+10
0.2
0.2
1.0
Unit
V
dc
% V
O, set
% V
O, set
% V
O, set
% V
O, set
% V
O, set
% V
O, set
All
All
All
C
O, max
I
o
0
0
25
75
5000
15.0
mV
rms
mV
pk-pk
μF
A
dc
Isolation Specifications
Parameter
Isolation Capacitance
Isolation Resistance
I/O Isolation Voltage
Symbol
C
iso
R
iso
All
Min
10
Typ
1000
Max
2250
Unit
pF
MΩ
Vdc
April 1, 2013
©2012 General Electric Company. All rights reserved.
Page 3
GE
36-75Vdc Input; 3.3Vdc, 15A Output
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
FIT
MTBF
Min
Data Sheet
KSTW015A0F Barracuda™ Series; DC-DC Converter Power Modules
Typ
274.7
3,640,826
13 (0.46)
Max
Unit
10
9
/Hours
Hours
g (oz.)
Feature Specifications
Unless otherwise indicated, specifications apply at V
IN
= 48V
dc
, resistive load, and T
A
= 25°C 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 (V
on/off
= -0.7V
dc
)
Logic Low - On/Off Voltage
Logic High Voltage (I
on/off
= 0A
dc
)
Logic High maximum allowable leakage current
Turn-On Delay and Rise Times
(I
O
=80% of I
O, max
)
Case 1: Input power is applied for at least 1second, and 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 Module ON, and 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
(I
O
=80% of I
O, max
, V
IN
= 48V
dc
)
Output Overvoltage Protection
Input Undervoltage Lockout
Turn-on Threshold
Turn-off Threshold
Hysterisis
All
All
All
V
uv/on
V
uv/off
V
hyst
30
34
32
2.0
36
V
dc
V
dc
V
dc
All
V
O, limit
4.0
All
T
delay
Case1
Device
Symbol
Min
Typ
Max
Unit
All
All
All
All
I
on/off
V
on/off
V
on/off
I
on/off
-0.7
2.4
0.15
0.8
TBD
25
mA
V
dc
V
dc
μA
35
50
ms
All
T
delay
Case2
24
50
ms
All
T
rise
30
50
3
5.5
ms
% V
O, set
V
dc
Note: 1.The module requires a minimum of 470
μF
external output capacitor to avoid exceeding the OVP maximum limits during startup into open
loop fault conditions.
April 1, 2013
©2012 General Electric Company. All rights reserved.
Page 4
GE
G
36-75Vdc In
3
nput; 3.3Vd 15A Out
dc,
tput
Characteris Curves
C
stic
s
Data Sh
heet
KSTW015A0F Ba
K
arracuda Series DC-DC Conver Powe Modules
a™
s;
C
rter
er
The following figures provide typical characteristics for the KSTW015A0F (3.3V, 15A) at 25
o
C. The figu
T
e
F
ures are identic for either
cal
positive or nega
p
ative remote O
On/Off logic.
OUTPU CURRENT, I
O
(A
UT
A)
INPUT CURRENT, I
IN
(A)
EFFICIENCY,
(%)
INPUT VOL
LTAGE, V
IN
(V)
Figure 1. Conv
verter Efficien versus Out
ncy
tput Current.
Figure 2. Converter Input Current versus Input Voltage.
e
r
t
OUTPUT CURRENT OUTPUT VOLTAGE
Io(A) (2A/div)
V
O
(V) (100mV/div)
OUTPUT VOLTAGE
V
O
(V) (50mV/div)
TIME, t (1s/div)
TIME, t (5
500s/div)
Figure 3. Typi
ical output ripple and noise (I
o
= I
o,max
).
Figure 4. Transient Response to 0
e
0.1A/µS Dynam Load
mic
Chang from 50% to 75% to 50% of full load, V
ge
o
%
Vin=48V.
OUTPUT VOLTAGE
V
O
( (V) (1V/div)
On/Off VOLTAGE
V
On/Off
V) (2V/div)
TIM t (20ms/div)
ME,
INPUT VOLTAGE
V
IN
(V) (20V/div)
OUTPUT VOLTAGE
V
O
(V) (1V/div)
TIME, t (2
20ms/div)
Figure 5.Typic Start-up Us
cal
sing Remote O
On/Off, negativ
ve
logic version shown (V
IN
= 4
48V, Io = I
o,max
).
Figure 6. Typical Sta
e
art-up Using In
nput Voltage (V
IN
= 48V, I
o
=
I
o,max
).
April 1, 2013
A
©2
2012 General Ele
ectric Company. A rights reserve
All
ed.
Page 5
京公网安备 11010802033920号
EEWORLD
