QD48T025033-NBB0 POWER ONE, QD48T025033-NBB0 Datasheet

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QD48T025033-NBB0

Manufacturer Part Number
QD48T025033-NBB0
Description
CONV DC-DC 48V IN 3.3/2.5V DUAL
Manufacturer
POWER ONE
Series
QD48r
Type
Isolatedr
Datasheet

Specifications of QD48T025033-NBB0

Output
2.5V, 3.3V
Number Of Outputs
2
Power (watts)
49W
Mounting Type
Through Hole
Voltage - Input
36 ~ 75V
Package / Case
7-DIP Module, 1/4 Brick
1st Output
2.5 VDC @ 15A
2nd Output
3.3 VDC @ 15A
Size / Dimension
2.30" L x 1.45" W x 0.34" H (58.4mm x 36.8mm x 8.6mm)
Power (watts) - Rated
49.5W
Operating Temperature
-40°C ~ 85°C
Efficiency
88%
Approvals
cUL, UL
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
3rd Output
-
4th Output
-
Other names
179-2235
QD48T025033-NAA0
QD48T025033-NBBO

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
QD48T025033-NBB0G
Quantity:
50
The QD48T025033 dual output through-hole mounted
DC-DC converter offers unprecedented performance in a
quarter-brick package by providing two independently
regulated high current outputs. This is accomplished by the
use of patent-pending circuit and packaging techniques to
achieve ultra-high efficiency, excellent thermal performance,
and a very low body profile.
In telecommunications applications the QD48 converters
provide up to 15 A per channel simultaneously – 30 A total –
with thermal performance far exceeding existing dual
quarter-bricks and comparable to dual half-bricks. Low body
profile and the preclusion of heat sinks minimize airflow
shadowing, thus enhancing cooling for downstream devices.
The use of 100% surface-mount technologies for assembly,
coupled with Power-One’s advanced electric and thermal
circuitry and packaging, results in a product with extremely
high quality and reliability.
Fig. 1: Available output power vs. ambient air temperature and
airflow rates for QD48T025033 converter mounted vertically with air
flowing from pin 3 to pin 1, MOSFET temperature ≤ 120°C, Vin =
48 V and balanced load on both outputs (Iout1 = Iout2).
Applications
MCD10084 Rev. 1.0, 25-Sep-08
100
90
80
70
60
50
40
30
20
10
0
20
Telecommunications
Data communications
Wireless
Servers
30
500 LFM (2.5 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
30 LFM (0.15 m/s)
40
Ambient Temperature [°C]
50
60
70
36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs
80
Page 1 of 15
QD48T025033 DC-DC Converter Data Sheet
90
Features
RoHS lead-free solder and lead-solder-exempted
products are available
Delivers up to 15 A simultaneously on 2.5 VDC and
3.3 VDC outputs
Can replace two single output quarter-bricks
Minimal cross-channel interference
High efficiency: 87.5% @ 2x15 A, 88% @ 2x7.5 A
Start-up into pre-biased output
No minimum load required
No heat sink required
Low profile: 0.28” [7.2 mm]
Low weight: 1 oz [28 g] typical
Industry-standard footprint: 1.45” x 2.30”
Industry-standard pinout
Meets Basic Insulation requirements of EN60950
Withstands 100 V input transient for 100 ms
On-board LC input filter
Fixed-frequency operation
Fully protected
Output voltage trim range: ±10% for both outputs
Trim resistor via industry-standard equations
High reliability: MTBF 2.6 million hours, calculated per
Telcordia TR-332, Method I Case 1
Positive or negative logic ON/OFF option
UL 60950-1, CSA C22.2 60950-1-03, and certified per
IEC/EN 60950-1
Meets conducted emissions requirements of FCC
Class B and EN55022 Class B with external filter
All materials meet UL94, V-0 flammability rating
QD48T025033 Converter
www.power-one.com

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QD48T025033-NBB0 Summary of contents

Page 1

... Ambient Temperature [°C] Fig. 1: Available output power vs. ambient air temperature and airflow rates for QD48T025033 converter mounted vertically with air flowing from pin 3 to pin 1, MOSFET temperature ≤ 120°C, Vin = 48 V and balanced load on both outputs (Iout1 = Iout2). Applications • ...

Page 2

... MCD10084 Rev. 1.0, 25-Sep-08 QD48T025033 DC-DC Converter Data Sheet 36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs NOTES ...

Page 3

... Load regulation is affected with resistance of the output pins (approximately 0.3 mΩ) since there is no remote sense. 4. Cross regulation is affected with resistance of the RETURN pin (approximately 0.3 mΩ) since there is no remote sense. MCD10084 Rev. 1.0, 25-Sep-08 QD48T025033 DC-DC Converter Data Sheet 36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs NOTES 2.5 VDC @ 15 ADC, 3.3 VDC @ 15 ADC, ...

Page 4

... Format The example above describes P/N QD48T025033-NBA0: 36-75 V input, dual output, through-hole mounting, 2.5 V and 3.3 V outputs @ 15 A each, negative ON/OFF logic, a maximum height of 0.336”, and a through the board pin length of 0.188”. Please consult factory regarding availability of a specific version. ...

Page 5

... ON/OFF input, in which case it should be capable of sourcing or sinking MCD10084 Rev. 1.0, 25-Sep-08 QD48T025033 DC-DC Converter Data Sheet 36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs depending on the signal polarity. See the Start-up Information section for system timing waveforms associated with use of the ON/OFF pin ...

Page 6

... The attempted restart will continue indefinitely until the overload or short circuit conditions are removed or the output voltage rises above undervoltage threshold. MCD10084 Rev. 1.0, 25-Sep-08 QD48T025033 DC-DC Converter Data Sheet 36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs Output Overvoltage Protection (OVP) Trim Resistor ...

Page 7

... Figs. 8-11. Ambient temperature was varied between 25°C and 85°C, MCD10084 Rev. 1.0, 25-Sep-08 QD48T025033 DC-DC Converter Data Sheet 36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs with airflow rates from 30 to 500 LFM (0.15 to 2.5 m/s), and vertical and horizontal converter mounting ...

Page 8

... For ( will be typically 3 ms after release of ON/OFF pin. MCD10084 Rev. 1.0, 25-Sep-08 QD48T025033 DC-DC Converter Data Sheet 36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs . IN ON/OFF STATE typically 4 1 ON/OFF STATE ...

Page 9

... Vin = 48 V, air flowing from pin 3 to pin 1 and maximum FET temperature ≤ 120°C. MCD10084 Rev. 1.0, 25-Sep-08 QD48T025033 DC-DC Converter Data Sheet 36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs 60 70 ...

Page 10

... Fig. 14: Efficiency vs. load current Iout2 and input voltage for converter mounted vertically with air flowing from pin 3 to pin rate of 300 LFM (1.5 m/s), for Iout1 = 7.5 A and Ta = 25°C. MCD10084 Rev. 1.0, 25-Sep-08 QD48T025033 DC-DC Converter Data Sheet 36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs 0.95 0.90 ...

Page 11

... Vin = 48 V, triggered via ON/OFF pin. Top trace: ON/OFF signal (5 V/div.). Bottom traces: Vout1 (blue, 1 V/div.), Vout2 (red, 1 V/div.). Time scale: 1 ms/div. MCD10084 Rev. 1.0, 25-Sep-08 QD48T025033 DC-DC Converter Data Sheet 36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs 0.95 0.90 ...

Page 12

... A/μ 300 μF tantalum + 1 μF ceramic. Time scale: 0.5 ms/div. MCD10084 Rev. 1.0, 25-Sep-08 QD48T025033 DC-DC Converter Data Sheet 36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs Fig. 21: Output voltage response to Iout2 load current step- change of 3.75 A (50%-75%-50%) at Iout1 = 7.5 A and Vin = 48 V ...

Page 13

... Vout2 is not affected until Vout1 reaches the shut-down threshold of 60% of its nominal value. Input voltage has almost no effect on Vout1 current limit characteristic. MCD10084 Rev. 1.0, 25-Sep-08 QD48T025033 DC-DC Converter Data Sheet 36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs Vout1 15 ...

Page 14

... V. Ch2 = Vout2, Ch1 = Vout1 (both 20 mV/div). Time scale: 1 μs/div. MCD10084 Rev. 1.0, 25-Sep-08 QD48T025033 DC-DC Converter Data Sheet 36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs Fig. 29: Load current Iout2 into a 10 mΩ short circuit on Vout2 during restart, with Vout1 open (no load), at Vin = 48 V. Ch2 = Iout2 (20 A/div, 20 ms/div) ...

Page 15

... TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice. MCD10084 Rev. 1.0, 25-Sep-08 QD48T025033 DC-DC Converter Data Sheet 36-75 VDC Input; 2.5 and 3.3VDC @ 15A Outputs (100 mA/div), Fig ...

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