QD48T033050-NBA0G datasheet, PDF

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QD48T033050-NBA0G: DescriptionDC-DC Regulated Power Supply Module, 2 Output, 100W, Hybrid, PACKAGE-7; CategoryPower/power management The power supply circuit; File Size1019KB，15 Pages; ManufacturerBel Fuse; Environmental Compliance

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QD48T033050-NBA0G Overview

DC-DC Regulated Power Supply Module, 2 Output, 100W, Hybrid, PACKAGE-7

QD48T033050-NBA0G Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
package instruction	,
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	ADDITIONAL 5V OUTPUT AVAILABLE
Analog Integrated Circuits - Other Types	DC-DC REGULATED POWER SUPPLY MODULE
Certification	EN, IEC, UL
high	8.53 mm
Maximum input voltage	75 V
Minimum input voltage	36 V
Nominal input voltage	48 V
JESD-30 code	R-XDMA-T7
length	58.42 mm
Number of functions	1
Output times	2
Number of terminals	7
Maximum output current	15 A
Maximum output voltage	3.63 V
Minimum output voltage	2.97 V
Nominal output voltage	3.3 V
Package body material	UNSPECIFIED
Package shape	RECTANGULAR
Package form	MICROELECTRONIC ASSEMBLY
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Certification status	Not Qualified
surface mount	NO
technology	HYBRID
Terminal form	THROUGH-HOLE
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
Maximum total power output	100 W
Fine-tuning/adjustable output	YES
width	36.83 mm
Base Number Matches	1

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The

QD48T033050

dual

output

through-hole

mounted

DC-DC converter offers unprecedented performance in a quarter brick

package by providing two independently regulated high current

outputs with total power of 100 W. 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 @ 3.3 V and 10 A @ 5 V simultaneously – with thermal

performance far exceeding existing dual quarter bricks and

comparable to dual 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 Bel Solutions advanced electric and

thermal circuitry and packaging, results in a product with extremely

high quality and reliability.



RoHS lead-free solder and lead-solder-exempted products are

available

Delivers simultaneously up to 15 A on 3.3 VDC and up to 10 A on 5.0

VDC output

Can replace two single output quarter-bricks

Minimal cross-channel interference

High efficiency: 88% @ full load, 89% @ half load

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 100ms

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

Approved to the latest edition and amendment of ITE Safety standards,

UL/CSA 60950-1 and IEC60950-1

Meets conducted emissions requirements of FCC

Class B and EN55022 Class B with external filter

All materials meet UL94, V-0 flammability rating

QD48T033050

These power converters have been designed to be stable with no external capacitors when used in low inductance input

and output circuits.

However, in many applications, the inductance associated with the distribution from the power source to the input of the

converter can affect the stability of the converter. The addition of a 33 µF electrolytic capacitor with an ESR < 1



across

the input helps ensure stability of the converter. In many applications, the user has to use decoupling capacitance at the

load. The converter will exhibit stable operation with external load capacitance up to 10,000 µF on 3.3 V and 4,700uF on 5

V output.

The ON/OFF pin is used to turn the power converter on or off remotely via a system signal. There are two remote control

options available, positive logic and negative logic and both are referenced to Vin(-). Typical connections are shown in

Fig. 1.

Vin (+)

Family

Vout2 (+)

TRIM

RTN

Rload1

Rload2

Converter

(Top View)

Vin

ON/OFF

Vin (-)

CONTROL

INPUT

Vout1 (+)

Figure 1. Circuit configuration for ON/OFF function.

The positive logic version turns on when the ON/OFF pin is at logic high and turns off when at logic low. The converter is on

when the ON/OFF pin is left open.

The negative logic version turns on when the pin is at logic low and turns off when the pin is at logic high. The ON/OFF pin

can be hard wired directly to Vin(-) to enable automatic power up of the converter without the need of an external control

signal.

ON/OFF pin is internally pulled-up to 5 V through a resistor. A mechanical switch, open collector transistor, or FET can be

used to drive the input of the ON/OFF pin. The device must be capable of sinking up to 0.2 mA at a low level voltage of



0.8 V. An external voltage source of ±20 V max. may be connected directly to the ON/OFF input, in which case it should be

capable of sourcing or sinking up to 1 mA depending on the signal polarity. See the Start-up Information section for system

timing waveforms associated with use of the ON/OFF pin.

The converter’s output voltages can be adjusted simultaneously up 10% or down 10% relative to the rated output voltages

by the addition of an externally connected resistor. For output voltage 3.3 V, trim up to 10% is guaranteed only at Vin

≥

V, and it is marginal (8% to 10%) at Vin = 36 V.

The TRIM pin should be left open if trimming is not being used. To minimize noise pickup, a 0.1 µF capacitor is connected

internally between the TRIM and RETURN pins.

Vin (+)

Family

Converter

(Top View)

Vout2 (+)

TRIM

RTN

Rload1

T-INCR

Rload2

Vin

ON/OFF

Vin (-)

Vout1 (+)

Figure 2. Configuration for increasing output voltage.

tech.support@psbel.com

QD48T033050-NBA0G Related Products

	QD48T033050-NBA0G	QD48T033050-PBC0	QD48T033050-NBC0G	QD48T033050-PBA0G
Description	DC-DC Regulated Power Supply Module, 2 Output, 100W, Hybrid, PACKAGE-7	DC-DC Regulated Power Supply Module, 2 Output, 100W, Hybrid, PACKAGE-7	DC-DC Regulated Power Supply Module, 2 Output, 100W, Hybrid, PACKAGE-7	DC-DC Regulated Power Supply Module, 2 Output, 100W, Hybrid, PACKAGE-7
Is it Rohs certified?	conform to	incompatible	conform to	conform to
Reach Compliance Code	compliant	compliant	compliant	unknown
ECCN code	EAR99	EAR99	EAR99	EAR99
Other features	ADDITIONAL 5V OUTPUT AVAILABLE	ADDITIONAL 5V OUTPUT AVAILABLE	ADDITIONAL 5V OUTPUT AVAILABLE	ADDITIONAL 5V OUTPUT AVAILABLE
Analog Integrated Circuits - Other Types	DC-DC REGULATED POWER SUPPLY MODULE	DC-DC REGULATED POWER SUPPLY MODULE	DC-DC REGULATED POWER SUPPLY MODULE	DC-DC REGULATED POWER SUPPLY MODULE
Certification	EN, IEC, UL	EN, IEC, UL	EN, IEC, UL	EN, IEC, UL
high	8.53 mm	8.53 mm	8.53 mm	8.53 mm
Maximum input voltage	75 V	75 V	75 V	75 V
Minimum input voltage	36 V	36 V	36 V	36 V
Nominal input voltage	48 V	48 V	48 V	48 V
JESD-30 code	R-XDMA-T7	R-XDMA-T7	R-XDMA-T7	R-XDMA-T7
length	58.42 mm	58.42 mm	58.42 mm	58.42 mm
Number of functions	1	1	1	1
Output times	2	2	2	2
Number of terminals	7	7	7	7
Maximum output current	15 A	15 A	15 A	15 A
Maximum output voltage	3.63 V	3.63 V	3.63 V	3.63 V
Minimum output voltage	2.97 V	2.97 V	2.97 V	2.97 V
Nominal output voltage	3.3 V	3.3 V	3.3 V	3.3 V
Package body material	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	MICROELECTRONIC ASSEMBLY	MICROELECTRONIC ASSEMBLY	MICROELECTRONIC ASSEMBLY	MICROELECTRONIC ASSEMBLY
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT APPLICABLE	NOT SPECIFIED	NOT SPECIFIED
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified
surface mount	NO	NO	NO	NO
technology	HYBRID	HYBRID	HYBRID	HYBRID
Terminal form	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE
Terminal location	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT APPLICABLE	NOT SPECIFIED	NOT SPECIFIED
Maximum total power output	100 W	100 W	100 W	100 W
Fine-tuning/adjustable output	YES	YES	YES	YES
width	36.83 mm	36.83 mm	36.83 mm	36.83 mm
Maker	-	Bel Fuse	Bel Fuse	Bel Fuse

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