Q48T20050-NBB0 POWER ONE, Q48T20050-NBB0 Datasheet

Q48T20050-NBB0

Manufacturer Part Number
Q48T20050-NBB0
Description
Manufacturer
POWER ONE
Type
Step Downr
Datasheet

Specifications of Q48T20050-NBB0

Number Of Outputs
1
Output Current
20A
Input Voltage
48V
Output Voltage
5V
Screening Level
Industrial
Product Length (mm)
36.83mm
Product Height (mm)
6.52mm
Product Depth (mm)
58.42mm
Mounting Style
Through Hole
Pin Count
8
Package / Case
Quarter-Brick
Lead Free Status / Rohs Status
Not Compliant
The Q48T20050 through-hole and Q48S20050 surface
mounted DC-DC converters offer unprecedented perform-
ance in the industry-standard quarter brick format. This is
accomplished through the use of patent pending circuit and
packaging techniques to achieve ultra-high efficiency, excel-
lent thermal performance and a very low body profile.
In telecommunications applications the
verters provide thermal performance that exceeds competing
quarter bricks with a higher nominal rating. 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 qual-
ity and reliability.
Fig. 1: Available load current vs. ambient air temperature and air-
flow rates for Q48T20050 converter with D height pins mounted
vertically with air flowing from pin 3 to pin 1, MOSFET temperature
≤ 120°C, Vin = 48 V.
Applications
NOV 07, 2003 revised to NOV 20, 2006
25
20
15
10
5
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
Q48T20050 and Q48S20050 DC-DC Converter Data Sheet
60
Q & &
70
Family 20 A con-
80
Page 1 of 15
90
36-75 VDC Input; 5.0 VDC @ 20A Output
Features
RoHS lead-free solder and lead-solder-exempted
products are available
Delivers up to 20 A
High efficiency: 86% @ 20 A, 88% @ 10 A
Start-up into pre-biased output
No minimum load required
No heat sink required
Low profile: 0.28” [7.2 mm] TH version, 0.26” [6.6 mm]
SMT version
Low weight: 1 oz [28 g] typical
Industry-standard footprint: 1.45” x 2.30”
Industry-standard pinout (TH version)
Meets Basic Insulation Requirements of EN60950
Withstands 100 V input transient for 100 ms
On-board LC input filter
Fixed-frequency operation
Fully protected
Remote output sense
Output voltage trim range: +10%/-20%
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 recognized in U.S. & Canada, and DEMKO
certified per IEC/EN 60950
Meets conducted emissions requirements of FCC
Class B and EN55022 Class B with external filter
All materials meet UL94, V-0 flammability rating
Q48T20050 and Q48S20050 Converters
www.power-one.com

Related parts for Q48T20050-NBB0

Q48T20050-NBB0 Summary of contents

Page 1

... Ambient Temperature [°C] Fig. 1: Available load current vs. ambient air temperature and air- flow rates for Q48T20050 converter with D height pins mounted vertically with air flowing from pin 3 to pin 1, MOSFET temperature ≤ 120°C, Vin = 48 V. Applications • Telecommunications • Data communications • ...

Page 2

... Vout can be increased up to 10% via the sense leads 10% via the trim function, however total output voltage trim from all sources should not exceed 10 NOM OUT Output Voltage Adjust /TRIM section. NOV 07, 2003 revised to NOV 20, 2006 Q48T20050 and Q48S20050 DC-DC Converter Data Sheet 36-75 VDC Input; 5.0 VDC @ 20A Output NOTES Continuous Non-latching 100 ms Plus full load (resistive) Non-latching Non-latching. Short=10mΩ ...

Page 3

... A/μS Setting Time to 1% EFFICIENCY 100% Load 50% Load NOV 07, 2003 revised to NOV 20, 2006 Q48T20050 and Q48S20050 DC-DC Converter Data Sheet 36-75 VDC Input; 5.0 VDC @ 20A Output NOTES 20 Adc, 5.0 Vdc Out @ 36 Vdc In Vin = 48 V, converter disabled Vin = 48 V, converter enabled ...

Page 4

... Through- 36-75 V Format The example above describes P/N Q48T20050-NBA0: 36-75 V input, through-hole mounting 5.0 V output, 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. RoHS Ordering Information: • ...

Page 5

... No RoHS suffix character is required for lead-solder-exemption compliance. • For RoHS compliance to all six substances, add the letter "G" as the last letter of the part number. NOV 07, 2003 revised to NOV 20, 2006 Q48T20050 and Q48S20050 DC-DC Converter Data Sheet 36-75 VDC Input; 5.0 VDC @ 20A Output 8 7 ...

Page 6

... V. An external voltage source of ±20 V max. may be connected directly to the ON/OFF input, in which NOV 07, 2003 revised to NOV 20, 2006 Q48T20050 and Q48S20050 DC-DC Converter Data Sheet 36-75 VDC Input; 5.0 VDC @ 20A Output case it should be capable of sourcing or sinking depending on the signal polarity. See the Start-up Informa- tion section for system timing waveforms associated with use of the ON/OFF pin ...

Page 7

... T DECR Δ where, NOV 07, 2003 revised to NOV 20, 2006 Q48T20050 and Q48S20050 DC-DC Converter Data Sheet 36-75 VDC Input; 5.0 VDC @ 20A Output R −DECR T and Δ defined above. Note: The above equations for calculation of trim resistor values match those typically used in conventional industry- standard quarter bricks. − ...

Page 8

... After the con- verter has cooled to a safe operating temperature, it will automatically restart. NOV 07, 2003 revised to NOV 20, 2006 Q48T20050 and Q48S20050 DC-DC Converter Data Sheet 36-75 VDC Input; 5.0 VDC @ 20A Output Safety Requirements The converters meet North American and International safety regulatory requirements per UL60950 and EN60950 ...

Page 9

... Load current vs. ambient temperature and airflow rates are given in Figs. 10-13 for through-hole and surface mount ver- NOV 07, 2003 revised to NOV 20, 2006 Q48T20050 and Q48S20050 DC-DC Converter Data Sheet 36-75 VDC Input; 5.0 VDC @ 20A Output sion. Ambient temperature was varied between 25°C and 85° ...

Page 10

... For ( typically 3 ms after release of ON/OFF pin. NOV 07, 2003 revised to NOV 20, 2006 Q48T20050 and Q48S20050 DC-DC Converter Data Sheet 36-75 VDC Input; 5.0 VDC @ 20A Output . IN ON/OFF STATE - typically 3 1 ON/OFF STATE ...

Page 11

... Ambient Temperature [°C] Fig. 10: Available load current vs. ambient air temperature and airflow rates for Q48T20050 converter with D height pins mounted vertically with Vin = 48 V, air flowing from pin 3 to pin 1 and maximum FET temperature ≤ 120° 500 LFM (2.5 m/s) 10 400 LFM (2 ...

Page 12

... Fig. 16: Efficiency vs. load current and input voltage for con- verter mounted horizontally with air flowing from pin 3 to pin rate of 300 LFM (1.5 m/s) and Ta = 25°C. NOV 07, 2003 revised to NOV 20, 2006 Q48T20050 and Q48S20050 DC-DC Converter Data Sheet 36-75 VDC Input; 5.0 VDC @ 20A Output ...

Page 13

... Bottom trace: load current (5 A/div.). Current slew rate: 0.1 A/μ μF ceramic. Time scale: 0.2 ms/div. NOV 07, 2003 revised to NOV 20, 2006 Q48T20050 and Q48S20050 DC-DC Converter Data Sheet 36-75 VDC Input; 5.0 VDC @ 20A Output Fig. 19: Turn-on transient at full rated load current (resistive) plus 10,000 μ ...

Page 14

... Vin = 48 V. Refer to Fig. 23 for test setup. Time scale: 1 μs/div. NOV 07, 2003 revised to NOV 20, 2006 Q48T20050 and Q48S20050 DC-DC Converter Data Sheet 36-75 VDC Input; 5.0 VDC @ 20A Output Fig. 23: Test setup for measuring input reflected ripple cur- ...

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. NOV 07, 2003 revised to NOV 20, 2006 Q48T20050 and Q48S20050 DC-DC Converter Data Sheet 36-75 VDC Input; 5.0 VDC @ 20A Output 20 ...

Related keywords