QL48T30012-NBB0 POWER ONE, QL48T30012-NBB0 Datasheet

CONV DC-DC 48V IN 1.2V OUT 36W

QL48T30012-NBB0

Manufacturer Part Number
QL48T30012-NBB0
Description
CONV DC-DC 48V IN 1.2V OUT 36W
Manufacturer
POWER ONE
Series
QL48r
Type
Isolatedr
Datasheet

Specifications of QL48T30012-NBB0

Output
1.2V
Number Of Outputs
1
Power (watts)
36W
Mounting Type
Through Hole
Voltage - Input
36 ~ 75V
Package / Case
8-DIP Module, 1/4 Brick
1st Output
1.2 VDC @ 30A
Size / Dimension
2.30" L x 1.45" W x 0.34" H (58.4mm x 36.8mm x 8.6mm)
Power (watts) - Rated
36W
Operating Temperature
-40°C ~ 85°C
Efficiency
83%
Approvals
cUL, UL
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
3rd Output
-
2nd Output
-
4th Output
-
Other names
179-2222
QL48T30012-NAA0
QL48T30012-NBBO
The QL48T30012 through-hole mounted low output voltage
DC-DC converter offers unprecedented performance 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, excellent thermal
performance and a very low body profile.
In telecommunications applications the
verters provide thermal performance that far exceeds all
quarter bricks and is comparable even to existing half-bricks.
Low body profile and the preclusion of heatsinks 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 ex-
tremely high quality and reliability.
Fig. 1: Available load current vs. ambient air temperature and air-
flow rates for QL48T30012 converter mounted vertically with air
flowing from pin 3 to pin 1, MOSFET temperature ≤ 120°C, Vin =
54 V.
Applications
MAR 26, 2003 revised to NOV 13, 2006
35
30
25
20
15
10
5
0
20
Telecommunications
Datacommunications
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
Q & &
70
Family 30 A con-
80
Page 1 of 14
90
QL48T30012 DC-DC Converter Data Sheet
36-75 VDC Input; 1.2 VDC @ 30A Output
Features
RoHS lead-free solder and lead-solder-exempted
products are available
Delivers up to 30 A
Higher current capability at 70ºC than existing quarter
brick and half-brick converters
High efficiency: 81% @ 30 A, 83% @ 15 A
Starts-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
Remote output sense
Output voltage trim range: ±10%
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
QL48T30012 Converter
www.power-one.com

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QL48T30012-NBB0 Summary of contents

Page 1

... LFM (0.15 m/ Ambient Temperature [°C] Fig. 1: Available load current vs. ambient air temperature and air- flow rates for QL48T30012 converter mounted vertically with air flowing from pin 3 to pin 1, MOSFET temperature ≤ 120°C, Vin = 54 V. Applications • Telecommunications • Datacommunications • ...

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. MAR 26, 2003 revised to NOV 13, 2006 QL48T30012 DC-DC Converter Data Sheet 36-75 VDC Input; 1.2 VDC @ 30A Output NOTES Continuous Non-latching 100 ms Plus full load (resistive) Non-latching Non-latching. Short=10mΩ ...

Page 3

... Load 50% Load Additional Notes: 2. -40ºC to 85ºC MAR 26, 2003 revised to NOV 13, 2006 QL48T30012 DC-DC Converter Data Sheet 36-75 VDC Input; 1.2 VDC @ 30A Output NOTES 30 Adc, 1.2 Vdc Out @ 36 Vdc In Vin = 48 V, converter disabled Vin = 48 V, converter enabled See Figure 24 - 25MHz bandwidth ...

Page 4

... Low Output hole Voltage The example above describes P/N QL48T30012-NBA0: 36-75 V input, through-hole mounting 1.2 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

... V. An external voltage source of ±20 V max. MAR 26, 2003 revised to NOV 13, 2006 QL48T30012 DC-DC Converter Data Sheet 36-75 VDC Input; 1.2 VDC @ 30A Output may be connected directly to the ON/OFF input, in which case it should be capable of sourcing or sinking depending on the signal polarity ...

Page 6

... T DECR | Δ | where, MAR 26, 2003 revised to NOV 13, 2006 QL48T30012 DC-DC Converter Data Sheet 36-75 VDC Input; 1.2 VDC @ 30A Output = R Required value of trim-down resistor [kΩ] −DECR T and Δ defined above. Converters are also available with alternative trim equations, to provide the customers with the flexibility of second sourc- ...

Page 7

... After the con- verter has cooled to a safe operating temperature, it will automatically restart. MAR 26, 2003 revised to NOV 13, 2006 QL48T30012 DC-DC Converter Data Sheet 36-75 VDC Input; 1.2 VDC @ 30A Output Safety Requirements The converters meet North American and International safety regulatory requirements per UL60950 and EN60950 ...

Page 8

... Load current vs. ambient temperature and airflow rates are given in Figs. 9-12. Ambient temperature was varied be- MAR 26, 2003 revised to NOV 13, 2006 QL48T30012 DC-DC Converter Data Sheet 36-75 VDC Input; 1.2 VDC @ 30A Output tween 25°C and 85°C, with airflow rates from 30 to 500 LFM (0 ...

Page 9

... For the condition ≤ 100 ms, the total converter start- time ( typically 102.5 ms. For ( typically 2.5 ms after release of ON/OFF pin. MAR 26, 2003 revised to NOV 13, 2006 QL48T30012 DC-DC Converter Data Sheet 36-75 VDC Input; 1.2 VDC @ 30A Output . IN ON/OFF STATE - typically 3 1 ON/OFF STATE ...

Page 10

... Vin = 54 V, air flowing from pin 3 to pin 4 and maximum FET tempera- ture ≤ 120°C. MAR 26, 2003 revised to NOV 13, 2006 QL48T30012 DC-DC Converter Data Sheet 36-75 VDC Input; 1.2 VDC @ 30A Output 60 70 ...

Page 11

... Fig. 15: 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. MAR 26, 2003 revised to NOV 13, 2006 QL48T30012 DC-DC Converter Data Sheet 36-75 VDC Input; 1.2 VDC @ 30A Output 0.90 0.85 ...

Page 12

... Bottom trace: load current (5 A/div.). Current slew rate: 0.1 A/μ μF ceramic. Time scale: 0.2 ms/div. MAR 26, 2003 revised to NOV 13, 2006 QL48T30012 DC-DC Converter Data Sheet 36-75 VDC Input; 1.2 VDC @ 30A Output Fig. 18: Turn-on transient at full rated load current (resistive) plus 10,000 μ ...

Page 13

... Vin = 48 V. Refer to Fig. 22 for test setup. Time scale: 1 μs/div. MAR 26, 2003 revised to NOV 13, 2006 QL48T30012 DC-DC Converter Data Sheet 36-75 VDC Input; 1.2 VDC @ 30A Output Vsource Fig. 22: Test setup for measuring input reflected ripple cur- ...

Page 14

... 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. MAR 26, 2003 revised to NOV 13, 2006 QL48T30012 DC-DC Converter Data Sheet 36-75 VDC Input; 1.2 VDC @ 30A Output 30 40 Fig. 26: Load current (top trace, 20 A/div, 20 ms/div) into a 10 mΩ ...

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