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PDF SQ60120QPA28 Data sheet ( Hoja de datos )
| Número de pieza | SQ60120QPA28 | |
| Descripción | Quarter-brick DC-DC Converter | |
| Fabricantes | SynQor Worldwide Headquarters | |
| Logotipo |  |
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Technical
Specification
SQ60120QPA28
36-75 V
Continuous Input
12V
Outputs
336 W
Max Power
2000Vdc
Isolation
Quarter-brick
DC-DC Converter
The BusQor® SQ60120QPA28 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 intermediate bus. 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 rail. RoHS
Compliant (see last page).
Operational Features
• Ultra-high efficiency, 95% at full rated load current
ww•w .DDeatlaivSehreseut4pUt.oco2m8 A (336 W) of output current (power) with
minimal derating - no heatsink required
• Input voltage range: 36 – 75 V
• Fixed frequency switching provides predictable
EMI performance
Mechanical Features
• Industry standard quarter-brick bus converter pin-out
(“S” Feature Set)
• Industry standard size: 1.45" x 2.3" (36.8 x 58.4 mm)
• Total height only 0.483" (12.27 mm), permits better airflow
and smaller card pitch
• Total weight: 1.5 oz. (42 grams)
Control Features
• On/Off control referenced to input side
Bus
Converter
SQ60120QPA28 Module
Protection Features
• Input under-voltage lockout and over-voltage
shutdown protects against abnormal input voltages
• Output current limit and short circuit protection
• Output over-voltage protection
• Thermal shutdown
Safety Features
• 2000V, 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
Contents
Page No.
SQ60-QPA Open Frame Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . 2
SQ60120QPA28 ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . 3-4
Standards Compliance and Qualification Testing . . . . . . . . . . . . . . . . . . 4
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Applications Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Product # SQ60120QPA28
Phone 1-888-567-9596 www.synqor.com
Doc.# 005-2SQ612J Rev. B 06/17/09
Page 1
1 page  
Technical Specification
Input: 36-75 V
Output: 12 V
Current: 28 A
Package: Quarter-brick
100
95
90
85
80
36 Vin
75 48 Vin
75 Vin
70
0 4 8 12 16 20 24 28
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25°C.
30
25
20
15
10
36 Vin
5 48 Vin
75 Vin
0
0 4 8 12 16 20 24 28
Load Current (A)
Figure 2: Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at 25°C.
97
96
95
94
93
25 ºC
92 40 ºC
55 ºC
www.D9a1taSheet4U.com
100
200 300
Air Flow (LFM)
400
Figure 3: Efficiency at nominal output voltage and 60% rated power
vs. airflow rate for ambient air temperatures of 25°C, 40°C, and 55°C
(nominal input voltage).
14
13
12
11
10
9
36V
8 48V
75V
7
0 4 8 12 16 20 24 28
Load Current (A)
Figure 4: Output voltage regulation vs. load current for minimum,
nominal, and maximum input voltage at 25°C.
30
25
20
15
10
5
0
25
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
40 55 70
Ambient Air Temperature (°C)
85
Figure 5: Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 0 LFM through 400 LFM with air flowing
from pin 3 to pin 1 (nominal input voltage).
Semiconductor junction temperature is
within 1°C of surface temperature
Figure 6: Thermal plot of converter at 23.3 amp load current (279.6W)
with 55°C air flowing at the rate of 200 LFM. Air is flowing across the
converter from pin 3 to pin 1 (nominal input voltage).
Product # SQ60120QPA28
Phone 1-888-567-9596 www.synqor.com
Doc.# 005-2SQ612J Rev. B 06/17/09
Page 5
5 Page 
Technical Specification
Over-Temperature Shutdown: A temperature sensor on the
converter senses the average temperature of the module. The ther-
mal shutdown circuit is designed to turn the converter off when the
temperature at the sensed location reaches the Over-Temperature
Shutdown value. It will allow the converter to turn on again when
the temperature of the sensed location falls by the amount of the
Over-Temperature Shutdown Restart Hysteresis value.
Vin
UVLO
On/Off
(N logic)
OFF
ON
t0 t1
Vout
12V
t2 t3
t
200 ms
Time
12 ms
208 ms
Figure E: Power Up/Down Diagram (not to scale) showing
wwSwt.aDrat-taUSpheIenth4iUb.ictoPmeriod.
Input: 36-75 V
Output: 12 V
Current: 28 A
Package: Quarter-brick
APPLICATION CONSIDERATIONS
Start-Up Inhibit Period: Figure E details the Start-Up Inhibit
Period for the BusQor modulewhen Vin is applied with the On/
Off pin asserted (enabled). Before time t1, when the input voltage
is below the UVL threshold, the unit is disabled by the Input Under-
Voltage Lockout feature. When the input voltage rises above the
UVL threshold, the Input Under-Voltage Lockout is released, and a
typical Startup Inhibit Period of 8 ms from a Vin start-up. Once
the module recognizes it should be on it waits an additional 4 ms
before it starts. When starting from an on/off event the module
has an inhibit time of 200 ms like our standard products. The
output builds up to 90% or higher of the nominal voltage and
stabilizes to its nominal output voltage in a total time of 8 ms
typical. The the module has a Vout rise time of 4 ms typically.
At time t2, when the On/Off pin is de-asserted (disabled), the
BusQor module stops switching immediately. Fall time from 12 V to 0
V is dependent on output capacitance load current, and any parasitic
trace inductance in the output load circuit.
At time t3, when the On/Off pin is re-asserted (enabled), the
BusQor module output begins to build up after the inhibit period
of 200 ms typical.
Refer to the Control Features section of the data sheet for details on
enabling and disabling methods for N and P logic type modules.
Product # SQ60120QPA28
Phone 1-888-567-9596 www.synqor.com
Doc.# 005-2SQ612J Rev. B 06/17/09
Page 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet SQ60120QPA28.PDF ] | |
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