High efficiency topology, 86% typical at 5V/3.3V
Wide operating temperature, up to and exceeding 65ºC (natural convection)
90% to 110% output trim
No minimum load
Overvoltage protection
Remote on/off
Approvals to EN60950 and UL/cUL1950
Complies with ETS 300 019-1-3/2-3
Complies with ETS 300 132-2 (input voltage and current requirements)
Complies with ETS 300 386-1
Available RoHS compliant
The SXE15 is a new high efficiency open
frame isolated 15 Watt converter series.
The first two models in the series feature
an input voltage range of 33 to 75VDC
and are available in output voltages of
5V/3.3V and 3.3V/2.5V.The output
voltage on each model is adjustable from
90% to 110% of the nominal value.
Typical efficiencies for the models are86%
for the 5V/3.3V and 85% for the 3.3V/2.5V
version. The SXE15 series also has a
remote on/offcapability with active 'HI'
and active 'LO' options available.
Overcurrent and overvoltage protection
features areincluded as standard.
With full international safety approval
including EN60950 and cUL1950, the
SXE15 reduces compliance costs and
time to market.
SXE15 48V SERIES
Dual output
SXE15 Dual Series | 15W
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1
[2YEAR WARRANTY ]
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
TÜV
Absolute Maximum Ratings
Input Characteristics
Turn On/Off
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Characteristic Symbol Min Typ Max Units Notes and Conditions
Input voltage - turn on Vin (on) 30 33 36 V DC
Input voltage - turn off Vin (off) 27 30 33 V DC
Hysteresis 3 V DC
Turn on delay - enabled, Tdelay 1.5 4 msec With the enable signal asserted,
then power applied (power) this is the time from when the
input voltage reaches the
minimum specified operating
voltage until the output voltage
is within the total regulation
band
Turn on delay - power Tdelay 2.5 4 msec Vin = Vin (nom),then enabled.
applied, then enabled (enable) This is the time taken until the
output voltage is within the total
error band
Rise time Trise 0.6 1.0 msec From 10% to 90%; full resistive
load, no external capacitance
Stresses in excess of the maximum ratings can cause permanent damage to the device. Operation of the device is not implied at these or any
other conditions in excess of those given in the specification. Exposure to absolute maximum ratings can adversely affect device reliability.
All specifications are typical at nominal input Vin = 48V, full load under any resistive load combination at 25˚Cunless otherwise stated.
Characteristic Symbol Min Typ Max Units Notes and Conditions
Input voltage - continuous Vin (cont) -0.3 75 V DC Vin(+) - Vin(-)
Input voltage - peak/surge Vsurge -0.3 80 VDC 2s max, non-repetitive
Operating temperature Top -40 115 ºC Measured at thermal reference
points, see Note 1
Storage temperature Tstorage -40 120 ºC
Output power (5V/3.3V) Pout (max) 15 W Even when trimmed up by 10%
Output power (3.3V/2.5V) Pout (max) 11.25 W When trimmed up by 10%
Characteristic Symbol Min Typ Max Units Notes and Conditions
Input voltage - operating Vin (oper) 33 48 75 V DC
Input current - no load lin 28 35 mADC Vin (min) - Vin (max),enabled
Input current - Quiescent lin (off) 20 25 mADC Converter disabled
Input voltage variation dv/dt 5 V/ms
Complies with ETS300 132 Part 4.4
Inrush current (i2t) linrush 300 µA2s
Complies with ETS300 132 Part 4.7,
with recommended LISN
Inrush current ratio It/Im19.5
Complies with ETS300 132 Part4.7,
with recommended LISN
Input ripple rejection 45 dB Frequency <1 kHz
Input fuse 2 ASlow Blow/Antisurge HRC
recommended 200V Rating
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
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Signal Electrical Interface
Reliability and Service Life
Isolation
Characteristic Symbol Min Typ Max Units Notes and Conditions
Input to output test voltage 1500 V DC Test duration 1s
Input to output capacitance 1000 pF
Input to output resistance 100 MΩ Measured with 500 V DC
Input to output insulation system Operational
Characteristic - Signal Name Symbol Min Typ Max Units Notes and Conditions
At remote/control ON/OFF pin See Notes 2 and 3
Open collector or equivalent See Application Note 116 for
compatible remote on/off details
Control pin open circuit voltage Vih 12 13 V Iih =0µA; open circuit voltage
High level input voltage Vih 2 75 V Converter guaranteed ON
when control pin is
greater than Vih (min)
High level input current Iih 10 µA Current flowing into control pin
when pin is pulled high
(max. at Vih =75V)
Acceptable high level Iih (leakage) -50 µA Acceptable leakage current from
leakage current signal pin into the open collector
driver (neg = from converter)
Low level input voltage ViI 0 1.2 V Converter guaranteed off
when control pin is
less than Vil (max)
Low level input current IiI -1.4 mA Vil =0.4 V
Low level input current Iil (max) -1.5 mA ViI =0.0 V;
Characteristic Symbol Min Typ Max Units Notes and Conditions
Mean time between failure MTBF 600,000 Hours MIL-HDBK-217F,
Vin = Vin (nom); Iout = Iout
(max);ambient 25ºC;
ground benign environment
Mean time between failure MTBF 1,500,000 Hours Per Bellcore TR-NWT-000332
Issue 3, ground benign,
temp. = 40ºC, Vin = Vin (nom),
Iout = Iout (max)
Mean time between failure MTBF 1,790,000 Hours Demonstrated.
Expected service life Years
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
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Other Specifications
Environmental Specifications
EMC
Electromagnetic Compatibility
Performance criteria:
NP: Normal Performance: EUT shall withstand applied test and operate within relevant limits as specified without damage
RP: Reduced Performance: EUT shall withstand applied test. Reduced performance is permitted within specified limits, resumption to
normal performance shall occur at the cessation of the test
LFS: Loss of Function (self recovery): EUT shall withstand applied test without damage, temporaryloss of function permitted during test.
Unit will self recover to normal performance after test
Referenced ETSI standards:
ETS 300 386-1 table 5 (1997): Public telecommunication network equipment, EMC requirements
ETS 300 132-2 (1996): Power supply interface at the input to telecommunication equipment: Part 2 operated by direct current (DC)
ETR 283 (1997): Transient voltages at interface A on telecommunication direct current (DC) power distributions
Characteristic Symbol Min Typ Max Units Notes and Conditions
Switching frequency Fsw 265 kHz Fixed frequency (all models)
Weight 12 g
Phenomenon Port Standard Test level Criteria Notes and conditions
Immunity:
ESD Enclosure EN61000-4-2 6kV contact As per ETS 300 386-1 table 5
8kV air
EFT DC power EN61000-4-4 2kV As per ETS 300 386-1 table 5
4kV
Signal EN61000-4-4 1kV As per ETS 300 386-1 table 5
2kV
Radiated field Enclosure EN61000-4-3 10V/m As per ETS 300 386-1 table 5
Conducted DC power EN61000-4-6 10V As per ETS 300 386-1 table 5
Signal EN61000-4-6 10V Signal line assumed < 3m in length
Input transients DC power ETS 300 132
ETR 283
Characteristic Symbol Min Typ Max Units Notes and Conditions
Thermal performance -40 65 ºC See Notes 1, 4 and
individual derating curves
Type Parameter Reference Test Level Notes and Conditions
Air temperature Low IEC 68-2-1 -40ºC All characteristics and
High IEC 68-2-2 +65ºC parameters extracted from
Change IEC 68-2-14 -40ºC to +65ºC ETS 300 019classes 3.1, 3.2, 3.3,
3.4 and 3.5 Tmax.
=+65ºC for T3.4
Relative humidity Low 10%
High IEC 68-2-56 100%
Condensation IEC 68-2-30 90 to 100%
Vibration IEC Class 3M5 Freq. velocity IEC 68-2-6 5-9Hz 5mm/s
Freq. acceleration IEC 68-2-6 9-200Hz 1g
Shock IEC Class 3M5 Acceleration IEC 68-2-29 10g
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
Model Input Output Overvoltage Output Current Typical
Number Voltage Voltage Protection (Max.) Efficiency
SXE15-48D05-3V3J 33-75 VDC 5V/3.3V 6.2V/4.2V 3A/4.5A 86%
SXE15-48D3V3-2V5J 33-75 VDC 3.3V/2.5V 4V/3V 3.4A/4.5A 85%
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EMC
Electromagnetic Compatibility
Material Ratings
Model Numbers
Standards Compliance List
Standard Category
EN60950 2000
UL/cUL 1950 3rd edition
TÜV Rheinland EN60950:2000
Characteristic - Signal Name Notes and Conditions
Flammability rating UL94V-0
Material type FR4 PCB
Phenomenon Port Standard Test level Criteria Notes and conditions
Emission:
Conducted DC power EN55022 Level A With recommended external filter for
compliance bandwidth 20 kHz to 30 MHz,
as per ETS 300 386-1. See Application
Note 116 for details
EN55022 Level B With recommended external filter for
compliance bandwidth 20 kHz to 30 MHz,
as per ETS 300 386-1. See Application
Note 116 for details
Signal EN55022 Level B Bandwidth 150kHz to 30MHz,
as per ETS 300 386-1
Radiated EN55022 Level B Bandwidth 30 MHz to 1 GHz, as per
ETS 300 386-1
Safety Agency Approvals
Characteristic
UL/cUL 1950 File Number E135734
TÜV Rheinland Certificate No. R2074133
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
RoHS Compliance Ordering Information
The ‘J’ at the end of the partnumber
indicates that the part is Pb-free
(RoHS 6/6 compliant). TSE RoHS 5/6
(non Pb-free) compliant versions may
be available on special request, please
contact your local sales representative
for details.
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Input Characteristics
SXE15-48D05-3V3J Model
Electrical Characteristics - O/P
SXE15-48D05-3V3J Model
Characteristic Symbol Min Typ Max Units Notes and Conditions
Nominal set-point voltage Vo (nom) 5V 4.931 5.032 5.133 V DC Vin = Vin (nom); Iout = Iout (nom)
Vo(nom) 3.3V 3.236 3.302 3.368 VDC Worst case condition over line,
load, temperature and life
Total regulation band Vo 5V 4.75 5.35 V DC For all line, static load and
Vo 3.3V 3.21 3.47 V DC temperature until end of life
Output current continuous Lout 5V 0 3.0 A DC Total output power must not
Lout 3.3V 0 4.5 A DC exceed 15W
Output current - short circuit Isc 5V 5 6 A rms Continuous, unit auto recovers
Isc 3.3V 7.5 10 A rms from short, Vo<100mV
Output voltage - noise Vp-p 5V 60 100 mV pk-pk Measurement bandwidth 20 MHz
Vrms 5V 20 30 mV rms See Application Note 116 for
Vp-p 3.3V 80 120 mV pk-pk measurement set-up details
Vrms 3.3V 25 35 mV rms Maximum power split 75%/25%
Cross regulation Vcross 5V 240 270 mV
Vcross 3.3V 75 85 mV
Characteristic Symbol Min Typ Max Units Notes and Conditions
Input current - operating Iin 0.363 0.368 A DC Vin = Vin (nom);
(max.); Vo= Vo(nom)
Input current - maximum Iin (max.) 0.529 0.541 A DC Vin = Vin (min); Iout = Iout
(max.); Vo= Vo(nom)
(measured at converter)
Reflected ripple current Iin (ripple) 1.8 mA RMS Iout = Iout (max.),measured
5 mA pk-pk with external filter. See
Application Note 116 for details
Input capacitance - Cinput 1.5 µF Internal to converter
internal filter
Input capacitance - Cbypass 0 µF Recommended customer
external bypass added capacitance
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
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Protection and Control Features
SXE15-48D05-3V3J Model
Efficiency
SXE15-48D05-3V3J Model
Characteristic Symbol Min Typ Max Units Notes and Conditions
Efficiency η86 87 % Iout 5V =50% Iout (max),
Iout 3.3V =50% Iout (max),
Vin = Vin (nom)
Efficiency η81 83 % Iout 5V =25% Iout (max),
Iout 3.3V =25% Iout (max),
Vin = Vin (nom)
SXE15-48D05-3V3J Model
Characteristic Symbol Min Typ Max Units Notes and Conditions
Overvoltage clamp voltage Vov 5V 5.5 7.2 V DC Non-latching. Refer to
Vov 3.3V 3.6 5.0 V DC Application Note 116 for details
Overcurrent limit inception Ioc 5V 3.7 4.2 ADC Vo=90% of Vo(nom)
Ioc 3.3V 5.6 6.3 A DC Vo=90% of Vo(nom)
Output voltage trim range 110 % Trim up (% of Vonom)
90 % Trim down (% of Vonom)
See Application Note 116 for
details of trim equations and
trim curves
Open sense voltage VDC No sense option
Electrical Characteristics - O/P
Characteristic Symbol Min Typ Max Units Notes and Conditions
Load transient response - (V01)V
dynamic 180 mV Peak deviation for 50% to 75%
peak deviation (V02) 100 step load, di/dt = 100 mA/µsec
Load transient response - Trecovery 100 µsec Settling time to within 1% of
recovery output settling point voltage for
50% to 75% step load
External load capacitance Cext 0 10,000 µF
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
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Input Characteristics
SXE15-48D3V3-2V5J Model
Characteristic Symbol Min Typ Max Units Notes and Conditions
Input current - operating Iin 0.275 0.279 ADC Vin = Vin (nom);
Pout = Pout (max.);50% each
output
Input current - maximum Iin (max.) 0.529 0.536 ADC Vin = Vin (min);
Pout = Pout (max.);50% each
output
Reflected ripple current Iin (ripple) 1.8 mA RMS Iout = Iout (max.),measured
5 mA pk-pk with external filter. See
Application Note 116 for details
Input capacitance - Cinput 1.5 µF Internal to converter
internal filter
Input capacitance - Cbypass 0 µF Recommended customer
External bypass added capacitance
SXE15-48D3V3-2V5J Model
Electrical Characteristics - O/P
Characteristic Symbol Min Typ Max Units Notes and Conditions
Nominal set-point voltage Vo (nom) 3.3V 3.297 3.364 3.431 V DC Vin = Vin (nom); Iout = Iout (nom)
Vo (nom) 2.5V 2.431 2.481 2.531 V DC Worst case condition over line,
load, temperatureand life
Total regulation band Vo 3.3V 3.05 3.59 V DC For all line, static load and
Vo 2.5V 2.35 2.60 V DC temperature until end of life
Output current continuous Lout 3.3V 0 3.0 A DC Total output power must not
Lout 2.5V 0 4.5 A DC exceed 11.25W
Output current - short circuit Isc 3.3V 6.0 8.0 A rms Continuous, unit auto recovers
Isc 2.5V 8.5 10 A rms from short, Vo<100mV
Output voltage - noise Vp-p 3.3V 90 130 mV pk-pk Measurement bandwidth 20 MHz
Vrms 3.3V 30 45 mV rms See Application Note 116 for
Vp-p 2.5V 100 140 mV pk-pk measurement set-up details
Vrms 2.5V 35 50 mV rms Maximum power split 75%/25%
Cross regulation Vcross 3.3V 220 250 mV
Vcross 2.5V 65 75 mV
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
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High Efficiency DC/DC Converters
SXE15-48D3V3-2V5J Model
Electrical Characteristics - O/P
Characteristic Symbol Min Typ Max Units Notes and Conditions
Overvoltage clamp voltage Vov 3.3 3.6 5.0 V DC Non-latching
Vov 2.5 2.7 4.0 VDC Refer to Application Note 116
Overcurrent limit inception Ioc 3.3 4.2 4.75 ADC Vo=90% of Vo(nom)
Ioc 2.5 5.6 6.3 A DC
Output voltage trim range 110 % Trim up (% of Vonom)
90 Trim down (% of Vonom)
See Application Note 116 for
details of trim equations and
trim curves
Open sense voltage VDC No sense feature
Protection and Control Features
SXE15-48D3V3-2V5J Model
Characteristic Symbol Min Typ Max Units Notes and Conditions
Load transient response - (V01)V
dynamic 150 mV Peak deviation for 50% to 75%
peak deviation (V02) 100 step load, di/dt = 100 mA/µsec
Load transient response - Trecovery 100 µsec Settling time to within 1% of
recovery output settling point voltage for
50% to 75% step load
External load capacitance Cext 0 10,000 µF
Efficiency
SXE15-48D3V3-2V5J Model
Characteristic Symbol Min Typ Max Units Notes and Conditions
Efficiency η85 86 % Iout 3.3V =50% Iout (max),
Iout 2.5V =50% Iout (max),
Vin = Vin (nom)
Efficiency η78 80 %Iout 3.3V =25% Iout (max),
Iout 2.5V =25% Iout (max),
Vin = Vin (nom)
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
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SXE15-48D3V3-2V5J Model
Figure1: Derating Curve Load Condition 3V3-100%
(Still Air)
Figure2: Derating Curve Load Condition 3V3-50% 2V5-50%
(Still Air)
Figure 3: Derating Curve Load Condition 3V3-25% 2V5-75%
(Still Air)
-40 -20 0 20 40 60 80 100
0
20
40
60
80
100
120
OUTPUT CURRENT (%)
AMBIENT TEMPERATURE (°C)
33Vin - 75Vin
36Vin - 60Vin
-40 -20 0 20 40 60 80 100
0
20
40
60
80
100
120
OUTPUT CURRENT (%)
AMBIENT TEMPERATURE (°C)
33Vin - 75Vin
36Vin - 60Vin
-40 -20 0 20 40 60 80 100
0
20
40
60
80
100
120
OUTPUT CURRENT (%)
AMBIENT TEMPERATURE (°C)
33Vin - 75Vin
36Vin - 60Vin
Figure 5: Derating Curve with Airflow for 70%-30% Load Split
25
0
20
40
60
80
100
120
55
35 45 65 75 85
POWER DISSIPATION (%)
AMBIENT TEMPERATURE (˚C)
100LFM
Natural
Convection
Simulation
200LFM
300LFM
400LFM
25
0
20
40
60
80
100
120
55
35 45 65 75 85
POWER DISSIPATION (%)
AMBIENT TEMPERATURE (˚C)
100LFM
Natural
Convection
Simulation
200LFM
300LFM
400LFM
Figure 6: Derating Curve with Airflow for 50%-50% Load Split
25
0
20
40
60
80
100
120
55
35 45 65 75 85
POWER DISSIPATION (%)
AMBIENT TEMPERATURE (˚C)
100LFM
Natural
Convection
Simulation
200LFM
300LFM
400LFM
Figure 4: Derating Curve with Airflow for 100%-0% Load Split
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
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0
0.0
0.5
1.0
1.5
2.0
3.0
2.5
3.5
6
248
OUTPUT VOLTAGE (V)
Low Line
Nom Line
High Line
OUTPUT CURRENT (A)
Figure11: Efficiency vs. Line
33.9
81
80
82
83
84
85
86
87
42.2 50.4 58.6 66.8 75.0
EFFICIENCY (%)
INPUT VOLTAGE (V)
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
6
24 810
OUTPUT VOLTAGE (V)
Low Line
Nom Line
High Line
OUTPUT CURRENT (A)
Figure 9: V-1 Characteristic over Input Line (3V3 Output) Figure10: V-1 Characteristic Over Input Line (2V5 Output)
Figure 12: Cross Efficiency
#1 100%,
#2 0% #1 50%,
#2 50% #1 0%,
#2 100%
72
76
80
84
88
Iout1 GOES FROM MAX TO MIN AS Iout2 GOES FROM MIN TO MAX
Low Line
Norm Line
High Line
EFFICIENCY (%)
SXE15-48D3V3-2V5J Model
25
0
20
40
60
80
100
120
55
35 45 65 75 85
POWER DISSIPATION (%)
AMBIENT TEMPERATURE (˚C)
100LFM
Natural
Convection
Simulation
200LFM
300LFM
400LFM
25
0
20
40
60
80
100
120
55
35 45 65 75 85
POWER DISSIPATION (%)
AMBIENT TEMPERATURE (˚C)
100LFM
Natural
Convection
Simulation
200LFM
300LFM
400LFM
Figure 7: Derating Curve with Airflow for 30%-70% Load Split Figure 8: Derating Curve with Airflow for 0%-100% Load Split
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Figure18: Output Ripple (Vout1)
VOLTAGE (20mV/Div)
TIME (1.0 µSec/Div)
SXE15-48D3V3-2V5J Model
Figure16: Remote On/Off Control (Vout1)
0
0
1
2
4
3
246810
OUTPUT VOLTAGE (V)
TIME (mSec)
Low Line
Nom Line
High Line
Signal
0
0
1
2
4
3
12345
OUTPUT VOLTAGE (V)
TIME (mSec)
Low Line
Nom Line
High Line
Vin
Figure 15: Typical Start-up (Vout2)
0
0
1
2
3
12345
OUTPUT VOLTAGE (V)
TIME (msec)
Low Line
Nom Line
High Line
Vin
Figure17: Remote On/OffControl (Vout2)
0
0
1
2
3
246810
OUTPUT VOLTAGE (V)
TIME (mSec)
Low Line
Nom Line
High Line
Signal
Figure14: Typical Start-up (Vout1)
Figure 13: Efficiency vs. Load
0%
0
10
20
30
50
70
90
40
60
80
50% 100%
EFFICIENCY (%)
OUTPUT POWER, 0% TO 100%
(#1 0% TO 50% + #2 0% TO 50%)
Low Line
Norm Line
High Line
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
Figure 20: Typical Transient Response 75%-50%
Load Step Change
Figure21: Typical Transient Response 50%-75%
Load Step Change
0.0
-0.025
0.000
0.100
0.025
0.050
0.075
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
OUTPUT VOLTAGE (V)
TIME (mSec)
Output #1
Output #2
Signal
0.0
-0.075
0.025
0.000
-0.025
-0.100
-0.050
0.1 0.2 0.3 0.4 0.5
OUTPUT VOLTAGE (V)
TIME (mSec)
Output #1
Output #2
Signal
VOLTAGE (20mV/Div)
TIME (1.0 µSec/Div)
Figure 19: Output Ripple (Vout2)
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Figure 22: Cross Regulation at Pout Max.
3.20
3.25
3.30
3.35
3.40
3.45
3.50
2.42
2.44
2.46
2.48
2.50
2.52
2.54
Vout1 (V)
Vout2 (V)
Iout1 (A), 0% <---> 100%
Iout2 (A), 100% <---> 0%
#1,
100%
Power
#2,
100%
Power
SXE15-48D3V3-2V5J Model
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SXE15-48D05-3V3J Model
Figure 23: Derating Curve Load Condition 5V0-100%
(Still Air)
-40 -20 0 20 40 60 80 100
0
20
40
60
80
100
120
OUTPUT CURRENT (%)
AMBIENT TEMPERATURE (°C)
33Vin - 75Vin
36Vin - 60Vin
Figure 25: Derating Curve Load Condition 5V0-25% 3V3-75%
(Still Air)
-40 -20 0 20 40 60 80 100
0
20
40
60
80
100
120
OUTPUT CURRENT (%)
AMBIENT TEMPERATURE (°C)
33Vin - 75Vin
36Vin - 60Vin
Figure 24: Derating Curve Load Condition 5V0-50% 3V3-50%
(Still Air)
-40 -20 0 20 40 60 80 100
0
20
40
60
80
100
120
OUTPUT CURRENT (%)
AMBIENT TEMPERATURE (°C)
33Vin - 75Vin
36Vin - 60Vin
Figure27: Derating Curve with Airflow for 70%-30% Load Split
25
0
20
40
60
80
100
120
55
35 45 65 75 85
POWER DISSIPATION (%)
AMBIENT TEMPERATURE (˚C)
100LFM
Natural
Convection
Simulation
200LFM
300LFM
400LFM
Figure 28: Derating Curve with Airflow for 50%-50% Load Split
25
0
20
40
60
80
100
120
55
35 45 65 75 85
POWER DISSIPATION (%)
AMBIENT TEMPERATURE (˚C)
100LFM
Natural
Convection
Simulation
200LFM
300LFM
400LFM
Figure26: Derating Curve with Airflow for 100%-0% Load Split
25
0
20
40
60
80
100
120
55
35 45 65 75 85
POWER DISSIPATION (%)
AMBIENT TEMPERATURE (˚C)
100LFM
Natural
Convection
Simulation
200LFM
300LFM
400LFM
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
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SXE15 Dual Series | 15W
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SXE15-48D05-3V3J Model
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Figure33: Efficiency vs. Line
33.9
83.0
82.5
83.5
84.0
84.5
85.5
86.5
85.0
86.0
87.0
42.1 50.4 58.6 66.8 75.0
EFFICIENCY (%)
INPUT VOLTAGE (V)
Figure 29: Derating Curve with Airflow for 30%-70% Load Split
25
0
20
40
60
80
100
120
55
35 45 65 75 85
POWER DISSIPATION (%)
AMBIENT TEMPERATURE (˚C)
100LFM
Natural
Convection
Simulation
200LFM
300LFM
400LFM
Figure 30: Derating Curve with Airflow for 0%-100% Load Split
25
0
20
40
60
80
100
120
55
35 45 65 75 85
POWER DISSAPATION (%)
AMBIENT TEMPERATURE (˚C)
100LFM
Natural
Convection
Simulation
200LFM
300LFM
400LFM
Figure31: V-1 Characteristic over Input Line (5V Output)
0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
3
12 45
6
OUTPUT VOLTAGE (V)
Low Line
Nom Line
High Line
OUTPUT CURRENT (A)
Figure 32: V-1 Characteristic Over Input Line (3V3 Output)
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
6
24 810
OUTPUT VOLTAGE (V)
Low Line
Nom Line
High Line
OUTPUT CURRENT (A)
#1 100%,
#2 0% #1 50%,
#2 50% #1 0%,
#2 100%
79
80
82
84
86
88
81
83
85
87
Iout1 GOES FROM MAX TO MIN AS Iout2 GOES FROM MIN TO MAX
Low Line
Nom Line
High Line
EFFICIENCY (%)
Figure 34 Cross Efficiency
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
SXE15 Dual Series | 15W
DC/DC
High Efficiency DC/DC Converters
SXE15-48D05-3V3J Model
16
Figure40: Output Ripple (Vout1)
VOLTAGE (20mV/Div)
TIME (1.0 µSec/Div)
Figure 36: Typical Start-up (Vout1)
0
0
2
6
4
12345
OUTPUT VOLTAGE (V)
TIME (mSec)
Low Line
Nom Line
High Line
Vin
Figure38: Remote On/Off Control (Vout1)
0
0
2
6
4
12345
OUTPUT VOLTAGE (V)
TIME (mSec)
Low Line
Nom Line
High Line
Signal
Figure 37 Typical Start-up (Vout2)
0
0
1
2
4
3
12345
OUTPUT VOLTAGE (V)
TIME (mSec)
Low Line
Nom Line
High Line
Vin
Figure 39: Remote On/Off Control (Vout2)
0
0
1
2
4
3
12345
OUTPUT VOLTAGE (V)
TIME (mSec)
Low Line
Nom Line
High Line
Signal
0%
0
10
20
30
50
70
100
90
40
60
80
50% 100%
EFFICIENCY (%)
OUTPUT POWER, 0% TO 100%
(#1 0% TO 50% + #2 0% TO 50%)
Low Line
Nom Line
High Line
Figure 35: Efficiency vs. Load
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SXE15 Dual Series | 15W
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VOLTAGE (20mV/Div)
TIME (1.0 µSec/Div)
Figure 41: Output Ripple (Vout2)
0.0
-0.05
0.00
0.15
0.05
0.10
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
OUTPUT VOLTAGE (V)
TIME (mSec)
Output #1
Output #2
Signal
0.0
-0.15
-0.10
-0.05
0.00
0.05
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
OUTPUT VOLTAGE (V)
TIME (mSec)
Output #1
Output #2
Signal
Figure 42: Typical Transient Response 75%-50%
Load Step Change
Figure43: Typical Transient Response 50%-75%
Load Step Change
SXE15-48D05-3V3J Model
4.80
4.90
5.00
5.10
5.20
3.22
3.24
3.26
3.28
3.30
3.32
3.34
3.36
3.38
3.40
Vout1 (V)
Vout2 (V)
Iout1 (A), 0% <---> 100%
Iout2 (A), 100% <---> 0%
#1,
100%
Power
#2,
100%
Power
Figure44: Cross Regulation at Pout Max.
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
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SXE15 Dual Series | 15W
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Figure45: Dimensions and Pinout
Tolerence: ±.015 (±.38)
Recommended Land & Hole Pattern
1.575 (40.01)
0.197 (5.00)
0.394 (10.01)
ø0.063 (ø1.60) 1.200 (30.48)
0.161 (4.09)
0.125 (3.18)
1.812 (46.02)
0.130 (3.30)
0.047 (1.18)
1.812 (46.02)
1.575 (40.01)
1.885 (47.88)
0.070 (1.78) MAX
1.812 (46.03)
0.335 (8.51) MAX
0.010 (0.25) MIN
1.905 (48.39)
1.390 (35.31)
1.150 (29.21)
leadframe length
overall length
BOTTOM VIEW
SIDE VIEW
TOP VIEW
ø.050 (ø1.27)
Non-Skid Retaining Pins,
2 Places 1
0.477 (12.11) 0.502 (12.75)
0.053 (1.36)
All Dimensions in Inches [mm]
0.069 (1.74)
0.197 (5.00)
0.394 (10.01)
1.181 (30.00)
1.378 (35.00)
0.100 (2.54)
12 places
0.063 (1.60)
0.053 (1.36)
1.181 (30.00)
1.378 (35.00)
Pin Connections
Pin No. Function
1Vo1 +
2com
3V02 +
4Trim
5N/C
6 N/C
7N/C
8On/Off
9 N/C
10 N/C
11 Vin -
12 Vin +
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
Note 1
Hot spot temperature is defined as the highest temperature
measured at any one of the specified temperature hotspot
checkpoints. See Figure 30: Hotspot temperature check
points.
Note 2
The control pin is referenced to Vin-.
Note 3
The SXE15 features ‘Active High’ Remote ON/OFF as standard.
An ‘Active Low’ Remote ON/OFF version is also available. To
order the ‘Active Low’ version of the SXE15-48D05-3V3J
please add the suffix ‘-R’ towards the end of the part number,
i.e. SXE15-48D05-3V3-RJ. As our part numbers cannot exceed
18 characters when ordering the ‘Active Low’ version of the
SXE15-48D3V3-2V5J please add the suffix ‘R’ towards the end
of the part number, i.e. SXE15-48D3V3-2V5RJ.
Note 4
Thermal reference set up: Unit mounted centrally on a 200mm x
240 mm testboard. Testboardis mounted vertically in a fully
enclosed 300mm x 300mm x 300mm testbox. Ambient
temperature measured at the bottom of the textbox. Altitude sea
level. For test details and recommended set-up see Application
Note 116.
CAUTION: Hazardous internal voltages and high temperatures.
Ensurethat unit is accessible only to trained personnel. The user
must provide the recommended fusing in order to comply with
safety approvals.
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Figure 46: Hot Spot Locations on all Models
1
File Name: lf_sxe15d.pdf Rev: 29 Mar 2006
Longform Datasheet Artesyn Technologies®
The information and specifications contained in this datasheet are
believed to be correct at time of publication. However, Artesyn
Technologies accepts no responsibility for consequences arising
from printing errors or inaccuracies. Specifications aresubject to
change without notice. No rights under any patent accompany the
sale of any such product(s) or information contained herein.
SXE15 Dual Series | 15W
DC/DC
High Efficiency DC/DC Converters
NORTH AMERICA
e-mail: sales.us@artesyn.com
%800 769 7274
%+508 628 5600
EUROPEAN LOCATIONS
e-mail: sales.europe@artesyn.com
IRELAND
%+353 24 93130
AUSTRIA
%+43 1 80150
FAR EAST LOCATIONS
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HONG KONG
%+852 2699 2868
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