SQ60060QPA55
36-75 V
100 V
6V
Output
Technical
Specification
Quarter-brick
DC-DC Converter
330 W
Max Power
2000 V dc
Isolation
Continuous Input Transient Input
The SQ60060QPA55 bus converter is a next-
generation, board-mountable, isolated, fixed
switching frequency dc-dc converter that uses
synchronous rectification to achieve extremely
high conversion efficiency. The power dissipated
by the converter is so low that a heatsink is
not required, which saves cost, weight, height,
and application effort. The SQ BusQor series
provides an isolated step down voltage from 48V
to a semi-regulated 12V or 6V intermediate bus.
SQ BusQor converters are ideal for customers
who need multiple outputs and wish to build or
buy point of load converters to work with a 12V or
6V rail. RoHS Compliant (see page 14).
Operational Features
• High efficiency, 93.7 % at full rated load current at full load
• Delivers full power with minimal derating - no heatsink required
• Operating input voltage range: 36-75 V dc
• Fixed frequency switching provides predictable EMI
• No minimum load requirement
Bus
®
Bus
Converter
SQ60060QPA55 Module
Control Features
• On/Off control referenced to input side
• Inherent current share (by droop method) for high current and
parallel applications.
Mechanical Features
• Industry standard quarter-brick pin-out configuration (two or four
output pin option)
• Size: 0.483” (12.27mm)
• Total weight:1.5 oz (42 g)
•
•
•
•
Protection Features
Input under-voltage lockout
Output current limit and short circuit protection
Input and output over-voltage protection
Thermal shutdown
Safety Features
•
•
•
•
•
•
•
2000 V input-to-output isolation
UL 60950-1:2003
CAN/CSA-C22.2 No. 60950-1:2003
EN60950-1:2001
Needle Flame Test (IEC 695-2-2)
IEC 61000-4-2
RoHS compliant (see last page)
Contents
Mechanical Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SQ60060QPA55 Family Electrical Characteristics . . . . . . . . . . . . . . . .3-4
SQ60060QPA55 Standards and Qualifications. . . . . . . . . . . . . . . . . . . . 5
SQ60060QPA55 Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-9
Application Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-13
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Page No.
Product # SQ60060QPA55
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005130 Rev. A
10/21/09
Page 1
Technical Specification
MECHANICAL DIAGRAM
TOP VIEW
.750[19,05]
.600 [15,24]
.150 [3,81]
7 6
5 4
1.45[36,8 ]
Input:
Output:
Current:
Package:
36-75 V
6V
55A
Quarter-brick
SIDE VIEW
.483 .032
[12,27 0,81]
OVERALL HEIGHT
.145
[3,68]
SEE NOTE 3
2.30
[58,4]
2.00
[50,8]
.14
[3,6]
1
2
1
2
3
.43 [10,8]
.300 [7,62]
.600 [15,24]
NOTES
1)
Pins 1-3, are 0.040” (1.02mm) diameter, with 0.080” (2.03mm)
diameter standoff shoulders.
2)
Pins 4-7 are 0.062” (1.57 mm) diameter with 0.100” (2.54 mm)
diameter standoff shoulders.
3)
Other pin lengths available. Recommended pin length is 0.03”
(0.76mm) greater than the PCB thickness.
4)
All Pins: Material - Copper Alloy- Finish (RoHS 6/6) - 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: 1.5 oz (42 g) typical
8)
Workmanship: Meets or exceeds IPC-A-610C Class II
9)
UL/TUV standards require a clearance of 0.04” (1.02mm) around
primary areas of the module.
Pin
1
2
3
4
5
6
7
Name
Vin(+)
ON/OFF
Vin(–)
Vout(+)
Vout(-)
Vout(+)
Vout(-)
Function
.033 .032
[0,84 0,81]
BOTTOMSIDE
CLEARANCE
PIN DESIGNATIONS
Input Positive (36V - 75V)
Logic control input to turn converter on and off.
Input Negative
Output Positive
Output Negative
Output Positive
Output Negative
Notes: Pins in Italics shaded text are Optional
Product # SQ60060QPA55
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005130 Rev. A
10/21/09
Page 2
Technical Specification
Input:
Output:
Current:
Package:
36-75 V
6V
55A
Quarter-brick
SQ60060QPA55 FAMILY ELECTRICAL CHARACTERISTICS
Ta = 25 °C, airflow rate = 300 LFM, Vin = 48 V dc 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.
Parameter
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
Operating
Operating Transient Protection
Isolation Voltage
Input to Output
Operating Temperature
Storage Temperature
Voltage at ON/OFF input pin
INPUT CHARACTERISTICS
Operating Input Voltage Range
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Voltage Hysteresis
Input Over-Voltage Shutdown
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Maximum Input Current
No-Load Input Current
Disabled Input Current
Input Reflected-Ripple Current
Input Terminal-Ripple Current
Recommended Input Fuse (see Note 1)
Recommended External Input Capacitance
Input Filter Component Values (L\C)
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Operating Output Current Range
Output DC Current-Limit Inception
Output DC Current-Limit Shutdown Voltage
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
DYNAMIC CHARACTERISTICS
Output Voltage during Load Current Transient
Step Change in Output Current (0.1 A/µs)
Settling Time
Turn-On Transient
Turn-On Time
Start-Up Inhibit Time
Output Voltage Overshoot
Min.
0
36
Typ.
Max.
100
75
100
2000
100
125
18
Units Notes & Conditions
V
V
V
V
°C
°C
V
V
V
V
V
V
V
V
A
mA
mA
mA
mA
A
µF
µH\µF
V
V
V
mV
V
mV
mV
A
A
V
mA
µF
Continuous
Continuous
100 ms transient, square wave
48
-40
-55
-2
36
31.0
28
2
105.0
95
48
75
34.0
32
4
7
200
47
0.47\6.6
6.475
6.5
+0.35\-0.60
+0\-0.80
±150
5.000
190
45
0
63
5.5
100
12
110
8.5
15
400
15
RMS through 10µH inductor
RMS, full load
Fast blow external fuse recommended
Typical ESR 0.1-0.2 Ω
Internal values; see Figure E
6.525
6.850
300
90
55
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 2
Full load
Full load
Subject to thermal derating
Output voltage 10% Low
Negative current drawn from output
Vout nominal at full load (resistive load)
10,000
625
2000
8
200
0
950
3000
12
mV
µs
ms
ms
%
50% to 75% to 50% Iout max
To within 1% Vout nom
Full load, Vout=90% nom.
-40 °C to +125 °C; Figure F
3 mF load capacitance
Product # SQ60060QPA55
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005130 Rev. A
10/21/09
Page 3
Technical Specification
Input:
Output:
Current:
Package:
36-75 V
6V
55A
Quarter-brick
SQ60060QPA55 FAMILY ELECTRICAL CHARACTERISTICS
Ta = 25 °C, airflow rate = 300 LFM, Vin = 48 V dc 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.
Parameter
Min.
Typ.
2000
30
470
Max.
Units Notes & Conditions
V
MΩ
pF
See Absolute Maximum Ratings
See Note 3
Package rated to 150 °C
UL rated max operating temp 130 °C
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
Isolation Resistance
Isolation Capacitance (input to output)
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
Board Temperature
Transformer Temperature
Maximum Baseplate Temperature, Tb
EFFICIENCY
100% Load
50% Load
FEATURE CHARACTERISTICS
Switching Frequency
225
ON/OFF Control (Option P)
Off-State Voltage
-1
On-State Voltage
2.4
ON/OFF Controll (Option N)
Pull-Up Voltage
2.4
Pull-Up Resistance
-1
Output Over-Voltage Protection
140
Over-Temperature Shutdown OTP Trip Point
Over-Temperature Shutdown Restart Hysteresis
RELIABILITY CHARACTERISTICS
Calculated MTBF (Telcordia) TR-NWT-000332
Calculated MTBF (MIL-217) MIL-HDBK-217F
Field Demonstrated MTBF
125
125
125
N/A
93.7
94.5
250
275
0.8
18
18
0.8
7.5
150
10
2.6
2.1
°C
°C
°C
°C
%
%
kHz
V
V
Application notes Figures A & B
V
V
V
°C
°C
Over full temp range; no load
Average PCB Temperature
106 Hrs. 80% load, 200LFM, 40 °C Ta
106 Hrs. 80% load, 200LFM, 40 °C Ta
106 Hrs. See our website for details
Note 1: UL’s product certification tests were carried out using 15A fast blow fuse. Fuse interruption characteristics have to be taken into account
while designing input traces. User should ensure that Input trace is capable of withstanding fault currents
Note 2: For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com)
Note 3: Isolation capacitance can be added external to the module.
Product # SQ60060QPA55
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005130 Rev. A
10/21/09
Page 4
Technical Specification
SQ60060QPA55 Standards and Qualifications
Parameter
STANDARDS COMPLIANCE
UL 60950-1:2003
CAN/CSA-C22.2 No. 60950-1:2003
EN60950-1:2001
Needle Flame Test (IEC 695-2-2)
IEC 61000-4-2
Input:
Output:
Current:
Package:
36-75 V
6V
55A
Quarter-brick
Notes & Conditions
File #E194341, Basic Insulation
Certified by TUV
Test on entire assembly; board & plastic components UL94V-0 compliant
ESD test, 8 kV - NP, 15 kV air - NP (Normal Performance)
Note: 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.
Parameter
QUALIFICATION TESTING
Life Test
Vibration
Mechanical Shock
Temperature Cycling
Power/Thermal Cycling
Design Marginality
Humidity
Solderability
# Units Test Conditions
32
5
5
10
5
5
5
15 pins
95% rated Vin and load, units at derating point, 1000 hours
10-55 Hz sweep, 0.060" total excursion, 1 min./sweep, 120 sweeps for 3 axis
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
Toperating = min to max, Vin = min to max, full load, 100 cycles
Tmin-10 °C to Tmax+10 °C, 5 °C steps, Vin = min to max, 0-105% load
85 °C, 85% RH, 1000 hours, continuous Vin applied except 5 min/day
MIL-STD-883, method 2003
Product # SQ60060QPA55
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005130 Rev. A
10/21/09
Page 5
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