Technical
S pecification
PQ60280FTA26
48V in
Input
28Vout
Output
26Amp
Current
2250Vdc
Isolation
Full-brick
DC/DC Conver ter
The PQ 6028 0FTA26 Po we r Qor
®
Te r a c o nve r te r i s a n i s o -
l ated , fixed s witch ing fre qu en cy DC /DC c on ver ter th at us es
synchronous rectification and a patented topology to
a ch ieve extr emel y high e fficien cy a nd p owe r den s ity. Th is
mo du le is ide al ly s uite d to su p po rt wir el es s b a se sta tion
amplifie rs an d for applicatio ns to drive co ol ing fans us ed in
n et wor ki ng s ys t ems , s erv er s an d da t a s t or a ge un it s . Th e Ter a
s eri es co nver ter s o ffer in d us try l ead in g us ea bl e ou tp ut p ower
for a ny s ta n da r d “ fu ll -b r ick ” mo du l e. Th es e 28 Vou t mod ul es
a r e a v a i l a b l e i n o p e n f r a m e a n d b a s e p l a t e d v e r s i o n s .
R oH S
compliant (see page 13 ).
Operational Features
• Ultra-high efficiency, 95% at full rated load current,
96% at half rated load current
• Delivers up to 728 Watts of output power with minimal
derating
• Input voltage range: 36V – 75V, with 100V for 100ms
input transient capability
• Fixed frequency switching provides predictable
EMI performance
• On-board input and output filtering
PQ60280FTA26 Module
Pr otection Features
• Input under-voltage lockout disables converter at low
input voltage conditions
• Output current limit and short circuit protection protects
converter and load from damage
• Active back bias limit prevents damage to converter
from external load induced pre-bias
• Output over-voltage protection
• Thermal shutdown
Mechanical Features
• Industry standard full-brick pin-out configuration
• Industry standard size: 4.6” x 2.4” (116.8 x 61.0mm)
• Total height only 0.50” (12.7mm), open frame unit only
0.43” (10.8mm)
• Total weight: 10.0oz. (284 grams), open frame unit
only 5.0 oz. (142 grams)
Contr ol Features
• Fully isolated On/Off control (positive and negative
logic options are available)
• Remote sense for the output voltage compensates for
output distribution drops
• Output voltage trim permits custom voltages and voltage
margining
• Synchronization feature available (full feature only)
• Paralleling capability
Safety Features
• 2250V, 30 MW input-to-output isolation
• UL/cUL 60950-1 recognized (US & Canada), basic
insulation rating
• TUV certified to EN60950-1
• Meets 72/23/EEC and 93/68/EEC directives
• Meets UL94V-0 flammability requirements
Product # PQ60280FTA26
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2FT628P Rev. C
4/17/08
Page 1
Technical Specification
MECHANICAL
DIAGRAM
(open frame)
0.20
0.45
(11.4)
(5.1)
Input:
Output:
Current:
Package:
36-75 V
28 V
26 A
Full-brick
2.40
(60.96)
1.750
4.60
(116.8)
(44.45)
1.400
(35.56)
1.150
(29.21)
4.20
(106.7)
0.900
(22.86)
0.500
(12.7)
0.250
(6.35)
0.050
(1.27)
Top View
1.250
(31.75)
0.850
(21.59)
0.450
(11.43)
0.300
(7.62)
0.150
(3.81)
1
2
3
4
5
6
18
17
16
15
14
13
7
8 9 10 11 12
3.150
(80.01)
0.150
(3.81)
0.300
(7.62)
0.450
(11.43)
0.600
(15.24)
0.750
(19.05)
Bottom side
Clearance
0.033 ±0.027
(0.84 ±0.68)
Side View
0.180
(4.57)
See Note 3
Load Board
Overall Height
0.395 ±0.025
(10.03 ±0.63)
NOTES
PIN DESIGNATIONS
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Name
SyncIn
SyncOut
+ON/OFF
– ON/OFF
Vin(+)
Vin(–)
Vaux
IOG
PARALLEL
TRIM
SENSE(+)
SENSE(–)
Vout(–)
Vout(–)
Vout(–)
Vout(+)
Vout(+)
Vout(+)
Function
Synchronization Input (full feature versions only)
Synchronization Output (full feature versions only)
Turn converter on and off, referenced to – ON/OFF
Fully isolated ground
Positive input voltage
Negative input voltage
Remote ON/OFF power, referenced to Vout(–)
Power Good or Inverted Operation Good
Current share
Output voltage trim
1
Positive remote sense
2
Negative remote sense
3
Negative output voltage
Negative output voltage
Negative output voltage
Positive output voltage
Positive output voltage
Positive output voltage
5/21/08
Page 2
1) Pins 1-4, 7-12 are 0.040” (1.02mm) diameter, with
0.080” (2.03mm) diameter standoff shoulders.
2) Pins 5-6, 13-18 are 0.080” (2.03 mm) diameter with
0.125” (3.18mm) diameter standoff shoulders.
3) Other pin extension lengths available. Recommended pin
length is 0.03” (0.76mm) greater than the PCB thickness.
4) All Pins: Material - Copper Alloy
Finish - Matte Tin over Nickel plate
5) Undimensioned components are shown for visual reference only.
6) All dimensions in inches (mm)
Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 in. (x.xx +/-0.25mm)
7) Weight: 5 oz. (142 g) typical
8) Workmanship: Meets or exceeds current IPC-A-610 Class II
9) UL/TUV standards require a clearance greater than 0.04” (1.02mm)
between input and output for Basic insulation. This issue should be
considered if any copper traces are on the top side of the user’s
board. Note that the ferrite cores are considered part of the
input/primary circuit.
Pin Designations Notes:
1. Leave TRIM pin open for nominal output voltage.
2. SENSE(+) should be connected to Vout(+) either remotely or at the converter.
3. SENSE(–) should be connected to Vout(–) either remotely or at the converter.
Product # PQ60280FTA26
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2FT628P Rev. C
Technical Specification
MECHANICAL
DIAGRAM
(base-plated)
4.20
0.45
(11.4)
(106.7)
Input:
Output:
Current:
Package:
36-75 V
28 V
26 A
Full-brick
1.750
(44.45)
1.400
(35.56)
1.150
(29.21)
4.60
(116.8)
0.900
(22.86)
0.500
(12.7)
0.250
(6.35)
2.000
(50.8)
0.20
(5.1)
(1.27)
0.050
Top View
1.250
(31.75)
0.850
(21.59)
0.450
(11.43)
0.300
(7.62)
0.150
(3.81)
1
2
3
4
5
6
18
17
16
2.40
(60.96)
15
14
13
7
8 9 10 11 12
0.20
(5.1)
3.150
(80.01)
0.150
(3.81)
0.300
(7.62)
0.450
(11.43)
0.600
(15.24)
0.750
(19.05)
Bottom side
Clearance
0.061 +0.019 / -0.022
(1.55 +0.48 / -0.55)
Side View
M3 Non-Threaded or
Threaded Standoff
4 Places
(see Note 10 for
threaded version)
0.180
Load Board
(4.57)
See Note 3
Overall Height
0.492 +0.002 / -0.005
(12.5 +0.05 / -0.12)
NOTES
PIN DESIGNATIONS
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Name
SyncIn
SyncOut
+ON/OFF
– ON/OFF
Vin(+)
Vin(–)
Vaux
IOG
PARALLEL
TRIM
SENSE(+)
SENSE(–)
Vout(–)
Vout(–)
Vout(–)
Vout(+)
Vout(+)
Vout(+)
Function
Synchronization Input (full feature versions only)
Synchronization Output (full feature versions only)
Turn converter on and off, referenced to – ON/OFF
Fully isolated ground
Positive input voltage
Negative input voltage
Remote ON/OFF power, referenced to Vout(–)
Power Good or Inverted Operation Good
Current share
Output voltage trim
1
Positive remote sense
2
Negative remote sense
3
Negative output voltage
Negative output voltage
Negative output voltage
Positive output voltage
Positive output voltage
Positive output voltage
5/21/08
Page 3
1) Pins 1-4, 7-12 are 0.040” (1.02mm) diameter, with
0.080” (2.03mm) diameter standoff shoulders.
2) Pins 5-6, 13-18 are 0.080” (2.03 mm) diameter with
0.125” (3.18mm) diameter standoff shoulders.
3) Other pin extension lengths available. Recommended pin
length is 0.03” (0.76mm) greater than the PCB thickness.
4) All Pins: Material - Copper Alloy
Finish - Matte Tin over Nickel plate
5) Undimensioned components are shown for visual reference only.
6) All dimensions in inches (mm)
Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 in. (x.xx +/-0.25mm)
7) Weight: 10 oz. (284 g) typical
8) Workmanship: Meets or exceeds IPC-A-610C Class II
9) UL/TUV standards require a clearance greater than 0.04” (1.02mm)
between input and output for Basic insulation. This issue should be
considered if any copper traces are on the top side of the user’s
board. Note that the ferrite cores are considered part of the
input/primary circuit.
10) Applied torque per screw should not exceed 3 in-lb (.33Nm)
Pin Designations Notes:
1. Leave TRIM pin open for nominal output voltage.
2. SENSE(+) should be connected to Vout(+) either remotely or at the converter.
3. SENSE(–) should be connected to Vout(–) either remotely or at the converter.
Product # PQ60280FTA26
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2FT628P Rev. C
Technical Specification
PQ60280FTA26 ELECTRICAL CHARACTERISTICS
Parameter
ABSOLUTE MAXIMUM RATINGS
Input:
Output:
Current:
Package:
36-75 V
28 V
26 A
Full-brick
T
A
=25°C, airflow rate=300 LFM, V
in
=48Vdc unless otherwise noted; full operating temperature range is -40°C to +100°C ambient
temperature with appropriate power derating. Specifications subject to change without notice.
Min.
Typ.
Max.
100
80
100
2250
100
125
18
48
33.3
31.0
2.3
220
42
3
0.2 \ 8.0
200
0.20
28.00
75
34.7
32.4
22.0
250
65
0.1
60
30
1.00
28.25
Units
V
V
V
V
°C
°C
V
V
V
V
V
A
mA
mA
A
2
s
mA
A
A
µH\µF
µF
Notes & Conditions
Continuous
Continuous
100ms transient
Basic insulation level, Pollution degree 2
Input Voltage
Non-Operating
Operating
Operating Transient Protection
Isolation Voltage (input to output)
Operating Temperature
Storage Temperature
Voltage at ON/OFF input pin
Operating Input Voltage Range
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Voltage Hysteresis
Maximum Input Current
No-Load Input Current
Disabled Input Current
Inrush Current Transient Rating
Input Reflected Ripple Current
Input Terminal Ripple Current
Recommended Input Fuse
Input Filter Component Values (L\C)
Recommended External Input Capacitance
Recommended External Input Capacitor ESR1
Output Voltage Set Point
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
1
Peak-to-Peak
RMS
Operating Output Current Range
Output DC Current-Limit Inception
Back-Drive Current-Limit While Enabled
Back-Drive Current-Limit While Disabled
Current Share Accuracy (2 units paralleled)
Maximum Output Capacitance
Input Voltage Ripple Rejection
Output Voltage during Load Current Transient
For a Step Change in Output Current (0.1A/µs)
For a Step Change in Output Current (5A/µs)
Settling Time
Turn-On Transient
Turn-On Time
Startup Delay:
First Startup Delay:
Restart Inhibit Delay:
Output Voltage Overshoot
100% Load
50% Load
Semiconductor Junction Temperature
Board Temperature
Transformer Temperature
Maximum Baseplate Temperature
2
Isolation Voltage (dielectric strength)
Isolation Resistance
Isolation Capacitance
3
-40
-55
-2
36
31.5
29.5
INPUT CHARACTERISTICS
100% Load, 36 Vin
0.04
27.75
W
V
RMS thru 4.7µH inductor; Figures 11 & 13
RMS; Figures 11 & 12
Fast blow external fuse recommended
Internal values
Typical ESR 0.2
W
, see Figure
11
100kHz, -40ºC to 100ºC
OUTPUT CHARACTERISTICS
27.50
+0.05 \ 28 +0.10 \ 28
+0.1 \ 28 +0.2 \ 56
+45
+90
28.50
180
40
30.2
3.40
0.30
2.5
30
1500
800
150
250
50
26
32.0
5.00
0.45
4,000
%\mV
%\mV
mV
V
mV
mV
A
A
A
A
A
µF
dB
mV
mV
µs
0
28.0
1.50
0.14
Over sample, line, load, temperature & life
20MHz bandwidth; Figures 11 & 14
Full Load; see Figures 11 & 14
Full Load; see Figures 11 & 14
Subject to thermal derating; Figures 5 - 6
Output Voltage 10% Low; Figure 22
Negative current drawn from output
Negative current drawn from output
28Vout at 26A Resistive Load
120 Hz; Figure 18
50-75-50% Iout max; 47µF cap; Figure 9
50-75-50% Iout max; 47µF cap; Figure 10
To within 1% Vout nom
Full load, Vout=90% nom.; Figures 7 & 8
DYNAMIC CHARACTERISTICS
25
30
2
200
320
0
95
96
35
ms
ms
ms
ms
%
%
%
4,000 µF load capacitance, Iout = 26A resistive load
Figures 1 - 4 (Figure 21 for baseplated)
Figures 1 - 4 (Figure 21 for baseplated)
Package rated to 150°C
UL rated max operating temp 130°C
See Figures 5 - 6 for derating curve
Applies to baseplated units only
EFFICIENCY
TEMPERATURE LIMITS FOR POWER DERATING CURVES
125
125
125
100
2250
30
3300
°C
°C
°C
°C
V
M
W
pF
ISOLATION CHARACTERISTICS
Note 1: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com)
Note 2: There is no derating with a baseplate temperature of 100ºC or lower.
Note 3: Higher values of isolation capacitance can be added external to the module.
Product # PQ60280FTA26
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2FT628P Rev. C
5/21/08
Page 4
Technical Specification
ELECTRICAL CHARACTERISTICS (Continued)
Parameter
P
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control (Option P)
On Current (threshold)
Off Current (threshold)
ON/OFF Control (Option N)
On Current (threshold)
Off Current (threshold)
Maximum allowable current through ON/OFF Pin
Auxiliary Power Supply Voltage
Auxiliary Power Supply Current
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
Over-Temperature Shutdown
Over-Temperature Shutdown Restart Hysteresis
Load Current Scale Factor
RELIABILITY CHARACTERISTICS
Calculated MTBF (Telcordia)
Calculated MTBF (MIL-217)
Field Demonstrated MTBF
Input:
Output:
Current:
Package:
36-75 V
28 V
26 A
Full-brick
Min.
275
0.1
Typ.
300
0.5
Max.
325
1
50
50
1
4
9.0
20.0
+15
+15
37
Units
kHz
mA
µA
µA
mA
mA
V
mA
%
%
V
°C
°C
Notes & Conditions
Regulation and isolation stages
0.1
6.0
0.0
-50
33
0.5
35
120
10
833
2.13
1.93
TBD
Measured across Pins 9 & 5; Figure C
Measured across Pins 9 & 5
Over full temp range; % of nominal Vout
Average PCB Temperature
See App Note: Output Load Current Calc.
106 Hrs. TR-NWT-000332; 80% load,300LFM, 40°C Ta
106 Hrs. MIL-HDBK-217F; 80% load, 300LFM, 40°C Ta
106 Hrs. See our website for details
STANDARDS COMPLIANCE
Parameter
P
STANDARDS COMPLIANCE
Notes
File # E194341, Basic insulation & pollution degree 2
Certified by TUV
Test on entire assembly; board & plastic components UL94V-0 compliant
ESD test, 8kV - NP, 15kV air - NP (Normal Performance)
Section 7 - electrical safety, Section 9 - bonding/grounding
UL/cUL 60950-1
EN60950-1
72/23/EEC
93/68/EEC
Needle Flame Test (IEC 695-2-2)
IEC 61000-4-2
GR-1089-CORE
Telcordia (Bellcore) GR-513
• An external input fuse must always be used to meet these safety requirements. Contact SynQor for official safety
certificates on new releases or download from the SynQor website.
QUALIFICATION TESTING
Parameter
P
QUALIFICATION TESTING
# Units
32
5
5
10
5
5
5
15 pins
Test Conditions
10-55Hz sweep, 0.060” total excursion,1 min./sweep, 120 sweeps for 3 axis
Life Test
Vibration
Mechanical Shock
Temperature Cycling
Power/Thermal Cycling
Design Marginality
Humidity
Solderability
95% rated V
in
and load, units at derating point, 1000 hours
100g minimum, 2 drops in x and y axis, 1 drop in z axis
-40°C to 100°C, unit temp. ramp 15°C/min., 500 cycles
T
operating
= min to max, V
in
= min to max, full load, 100 cycles
T
min
-10°C to T
max
+10°C, 5°C steps, V
in
= min to max, 0-105% load
85°C, 85% RH, 1000 hours, 2 minutes on and 6 hours off
MIL-STD-883, method 2003 and JESD22-B102D
• Extensive characterization testing of all SynQor products and manufacturing processes is performed to ensure that we supply
robust, reliable product. Contact the factory for official product family qualification documents.
OPTIONS
SynQor provides various options for this family of dc-dc convert-
ers. Please consult the last page for additional information.
PATENTS
SynQor is protected under various patents. Please consult the
last page for further details.
Product # PQ60280FTA26
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2FT628P Rev. C
5/21/08
Page 5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
