QME48T20120-NGB0 POWER ONE, QME48T20120-NGB0 Datasheet

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QME48T20120-NGB0

Manufacturer Part Number
QME48T20120-NGB0
Description
Module DC-DC 1-OUT 12V 20A 8-Pin Quarter-Brick
Manufacturer
POWER ONE
Type
Step Downr
Datasheet

Specifications of QME48T20120-NGB0

Package
8Quarter-Brick
Output Current
20 A
Output Voltage
12 V
Input Voltage
48 V
Number Of Outputs
1
Switching Regulator
Yes

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
QME48T20120-NGB0
Manufacturer:
POWER-ONE
Quantity:
20 000
Part Number:
QME48T20120-NGB0G
Manufacturer:
POWER-ONE
Quantity:
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Part Number:
QME48T20120-NGB0G
Manufacturer:
POWER-ONE
Quantity:
20 000
Applications
Benefits
Description
 Telecommunications
 Data communications
 Wireless communications
 Servers, workstations
 High efficiency – no heat sink required
The QME48T20120 converter of the QME-Series provides outstanding thermal performance in high temperature
environments. This performance is accomplished through the use of patented/patent-pending circuits, packaging,
and processing techniques to achieve ultra-high efficiency, excellent thermal management, and a low-body profile.
The low-body profile and the preclusion of heat sinks minimize impedance to system airflow, thus enhancing
cooling for both upstream and downstream devices. The use of 100% automation for assembly, coupled with
advanced electronic circuits and thermal design, results in a product with extremely high reliability.
Operating from a 36-75 V input, the QME-Series converters provide outputs that can be trimmed from –20% to
+10% of the nominal output voltage, thus providing outstanding design flexibility.
ZD-01742 Rev 3.4, 21-Jan-10
www.power-one.com
QME48T20120 DC-DC Converter Data Sheet
36-75 VDC Input; 12 VDC @ 20 A Output
Features
 RoHS lead free solder and lead-solder-exempted
 Delivers up to 20 A
 Industry-standard quarter-brick pinout
 On-board input differential LC-filter
 Startup into pre-biased load
 No minimum load required
 Dimensions: 1.45” x 2.30” x 0.482”
 Weight: 1.25 oz [35.85 g]
 Meets Basic Insulation requirements of EN60950
 Withstands 100 V input transient for 100 ms
 Fixed-frequency operation
 Fully protected
 Remote output sense
 Fully protected with automatic recovery
 Positive or negative logic ON/OFF option
 Output voltage trim range: +10%/−20% with
 High reliability: MTBF approx. 8.7 million hours,
 UL/CSA60950-1, EN60950-1, and IEC60950-1
 Designed to meet Class B conducted emissions per
 All materials meet UL94, V-0 flammability rating
products are available
(36.83 x 58.42 x 12.24 mm)
industry-standard trim equations
calculated per Telcordia TR-332, Method I Case 1
safety approved
FCC and EN55022 when used with external filter
Data Sheet
Page 1 of 14

Related parts for QME48T20120-NGB0

QME48T20120-NGB0 Summary of contents

Page 1

... High efficiency – no heat sink required Description The QME48T20120 converter of the QME-Series provides outstanding thermal performance in high temperature environments. This performance is accomplished through the use of patented/patent-pending circuits, packaging, and processing techniques to achieve ultra-high efficiency, excellent thermal management, and a low-body profile. ...

Page 2

... Vout can be increased up to 10% via the sense leads 10% via the trim function. However, the total output voltage trim from all sources should not exceed 10 OUT 2 Operating ambient temperature range of -40 º ºC for converter. ZD-01742 Rev 3.4, 21-Jan-10 QME48T20120 DC-DC Converter Data Sheet 36-75 VDC Input; 12 VDC @ 20 A Output Notes Continuous Industry-std. equations Percent ...

Page 3

... Load Change 50%-75%-50%, di/dt = 0.1 A/µs di/ A/µs Settling Time to 1% Efficiency 100% Load 50% Load ZD-01742 Rev 3.4, 21-Jan-10 QME48T20120 DC-DC Converter Data Sheet 36-75 VDC Input; 12 VDC @ 20 A Output Notes Non-latching 100 ms 20 ADC, 12 VDC Out @ 36 VDC In Vin = 48 V, converter disabled ...

Page 4

... V. An external voltage source (±20 V maximum) may be connected directly to the ZD-01742 Rev 3.4, 21-Jan-10 QME48T20120 DC-DC Converter Data Sheet 36-75 VDC Input; 12 VDC @ 20 A Output ON/OFF input, in which case it must be capable of sourcing or sinking depending on the signal polarity ...

Page 5

... T DECR | Δ | ZD-01742 Rev 3.4, 21-Jan-10 QME48T20120 DC-DC Converter Data Sheet 36-75 VDC Input; 12 VDC @ 20 A Output where, R DECR T and Δ is defined above. Note: The above equations for calculation of trim resistor values match those typically used in conventional industry-standard quarter- bricks ...

Page 6

... After the converter has cooled to a safe operating temperature, it will automatically restart. ZD-01742 Rev 3.4, 21-Jan-10 QME48T20120 DC-DC Converter Data Sheet 36-75 VDC Input; 12 VDC @ 20 A Output Safety Requirements The converters UL/CSA60950-1, EN60950-1, and IEC60950-1. ...

Page 7

... For ( startup will be typically 4 ms after release of ON/OFF pin. ZD-01742 Rev 3.4, 21-Jan-10 QME48T20120 DC-DC Converter Data Sheet 36-75 VDC Input; 12 VDC @ 20 A Output V IN ON/OFF STATE OFF ON V OUT t ...

Page 8

... Refer to Fig. H for the optimum measuring thermocouple location. Fig. H: Location of the thermocouple for thermal testing. ZD-01742 Rev 3.4, 21-Jan-10 QME48T20120 DC-DC Converter Data Sheet 36-75 VDC Input; 12 VDC @ 20 A Output Thermal Derating Load current vs. ambient temperature and airflow rates are given in Fig ...

Page 9

... Load Current [Adc] Fig. 3: Efficiency vs. load current and input voltage for converter mounted vertically with air flowing from pin 1 to pin rate of 300 LFM (1.5 m/s) and C. ZD-01742 Rev 3.4, 21-Jan-10 QME48T20120 DC-DC Converter Data Sheet 36-75 VDC Input; 12 VDC @ 20 A Output ...

Page 10

... Vin = 48 V, triggered via ON/OFF pin. Top trace: ON/OFF signal (5 V/div.). Bottom trace: output voltage (2 V/div.). Time scale: 2 ms/div. ZD-01742 Rev 3.4, 21-Jan-10 QME48T20120 DC-DC Converter Data Sheet 36-75 VDC Input; 12 VDC @ 20 A Output 25.00 20.00 15.00 10 ...

Page 11

... µF tantalum + 1 µF ceramic and Vin = 48 V. Time scale: 1 µs/div. ZD-01742 Rev 3.4, 21-Jan-10 QME48T20120 DC-DC Converter Data Sheet 36-75 VDC Input; 12 VDC @ 20 A Output Fig. 10: Output voltage response to load current step- change (10 A – – Vin = 48 V. Top trace: output voltage (100 mV/div.). Bottom trace: load current (5 A/div.). Current slew rate: 5 A/µ ...

Page 12

... Input voltage has almost no effect on current limit characteristic. ZD-01742 Rev 3.4, 21-Jan-10 QME48T20120 DC-DC Converter Data Sheet 36-75 VDC Input; 12 VDC @ 20 A Output Fig. 14: Input reflected ripple current, i measured through 10 µH at the source at full rated load (500 mA/div ...

Page 13

... Pins 4 and 8 are Ø 0.062” [1.57] with Ø 0.096” [2.44] shoulder  Pin Material: Pins 1-3 Brass Alloy 360, Pins 4 and 8 – Copper Alloy CDA 145  Pin Finish - Matte Tin over Nickel ZD-01742 Rev 3.4, 21-Jan-10 QME48T20120 DC-DC Converter Data Sheet 36-75 VDC Input; 12 VDC @ 20 A Output ...

Page 14

... A Format hole Example: QME48T20120-NGB0: 36-75 V input, through-hole mounting output, negative ON/OFF logic, a maximum height of 0.482”, a through the board pin length of 0.145”, and RoHS lead-solder-exempt compliant. Please consult factory for the complete list of available options. Attention: Special features option “T” is only available with the 0.188” pin length Notes: 1 ...

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