TECHNICAL SPECIFICATIONS (TA=25°C, airflow rate=300 LFM, Vin=48Vdc, nominal Vout unless otherwise noted.)

 

PARAMETER

 

 

NOTES and CONDITIONS

 

 

 

Q48DR1R833NRFA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Min.

 

 

Typ.

 

 

Max.

 

 

Units

 

 

ABSOLUTE MAXIMUM RATINGS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Voltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Continuous

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80

 

 

Vdc

 

 

Transient (100ms)

 

 

<100ms

 

 

 

 

 

 

 

 

 

100

 

 

Vdc

 

 

Operating Temperature

 

 

Please refer to figure 27 for measuring point

 

 

 

-40

 

 

 

 

 

114

 

 

°C

 

 

Storage Temperature

 

 

 

 

 

 

 

 

-55

 

 

 

 

 

125

 

 

°C

 

 

Input/Output Isolation Voltage

 

 

 

 

 

 

 

 

1500

 

 

 

 

 

 

 

 

Vdc

 

 

INPUT CHARACTERISTICS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating Input Voltage

 

 

 

 

 

 

 

 

36

 

 

48

 

 

75

 

 

Vdc

 

 

Input Under-Voltage Lockout

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Turn-On Voltage Threshold

 

 

 

 

 

 

 

 

33

 

 

34

 

 

35

 

 

Vdc

 

 

Turn-Off Voltage Threshold

 

 

 

 

 

 

 

 

31

 

 

32

 

 

33

 

 

Vdc

 

 

Lockout Hysteresis Voltage

 

 

 

 

 

 

 

 

1

 

 

2

 

 

3

 

 

Vdc

 

 

Maximum Input Current

 

 

100%load, 36Vin

 

 

 

 

 

 

 

 

 

2.9

 

 

A

 

 

No-Load Input Current

 

 

 

 

 

 

 

 

 

 

 

100

 

 

150

 

 

mA

 

 

Off Converter Input Current

 

 

 

 

 

 

 

 

 

 

 

5

 

 

10

 

 

mA

 

 

Inrush Current(I2t)

 

 

 

 

 

 

 

 

 

 

 

0.015

 

 

 

 

 

A2s

 

 

Input Reflected-Ripple Current

 

 

P-P thru 12µH inductor, 5Hz to 20MHz

 

 

 

 

 

 

10

 

 

 

 

 

mA

 

 

Input Voltage Ripple Rejection

 

 

120Hz

 

 

 

 

 

 

50

 

 

 

 

 

dB

 

 

OUTPUT CHARACTERISTICS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage Set Point

 

 

Vin=48V, Io=Io.max, Tc=25

 

 

Vout 1

 

 

1.771

 

 

1.800

 

 

1.829

 

 

Vdc

 

 

 

 

 

 

Vout 2

 

 

3.247

 

 

3.300

 

 

3.353

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage Regulation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Over Load

 

 

Io1=Io, min to Io, max, Io2=0A

 

 

Vout 1

 

 

 

 

 

±5

 

 

±10

 

 

mV

 

 

 

 

Io2=Io, min to Io, max, Io1=0A

 

 

Vout 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Over Line

 

 

Vin=36V to 75V,Io1=Io2=full load

 

Vout 1

 

 

 

 

±3

 

±10

 

 

V

 

 

 

 

 

Vout 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cross Regulation

 

 

Worse Case

 

 

 

 

 

 

 

±5

 

 

±10

 

 

mV

 

 

Over Temperature

 

 

Tc=-40 to 85

 

 

 

 

 

±15

 

±50

 

 

 

 

 

Total Output Voltage Range

 

 

Over sample load, line and temperature

 

 

Vout 1

 

 

1.746

 

 

 

 

 

1.854

 

 

V

 

 

 

 

 

 

Vout 2

 

 

3.201

 

 

 

 

 

3.399

 

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage Ripple and Noise

 

 

5Hz to 20MHz bandwidth

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Peak-to-Peak

 

 

Io1, Io2 Full Load, 1µF ceramic, 10µF tantalum

 

 

Vout 1

 

 

 

 

 

40

 

 

80

 

 

mV

 

 

 

 

 

 

Vout 2

 

 

 

 

 

40

 

 

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RMS

 

 

Io1, Io2 Full Load, 1µF ceramic, 10µF tantalum

 

Vout 1

 

 

 

 

 

10

 

 

30

 

 

mV

 

 

 

 

 

Vout 2

 

 

 

 

10

 

30

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating Output Current Range

 

 

 

 

 

Vout 1

 

 

0

 

 

 

 

 

15

 

 

A

 

 

 

 

 

 

 

Vout 2

 

 

0

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output DC Current-Limit Inception

 

 

 

 

 

Vout 1

 

 

100%

 

 

 

 

 

150%

 

 

 

 

 

 

 

 

 

 

Vout 2

 

100%

 

 

 

 

150%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DYNAMIC CHARACTERISTICS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage Current Transient

 

 

48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Positive Step Change in Output Current

 

 

Iout1from 50% Io, max to 75% Io, max

 

Vout 1

 

 

 

 

 

100

 

 

 

 

 

mV

 

 

 

 

 

Vout 2

 

 

 

 

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Negative Step Change in Output Current

 

 

Iout2 from 75% Io, max to 50% Io, max

 

 

Vout 1

 

 

 

 

 

100

 

 

 

 

 

mV

 

 

 

 

 

 

Vout 2

 

 

 

 

 

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cross dynamic

 

 

Each channel independence

 

 

 

 

 

 

 

 

 

20

 

 

mV

 

 

Settling Time (within 1% Vout nominal)

 

 

 

 

 

 

 

 

 

 

 

150

 

 

 

 

 

US

 

 

Turn-On Transient

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Start-up Time, From On/Off Control

 

 

 

 

 

 

 

 

 

 

 

10

 

 

15

 

 

MS

 

 

Start-up Time, From Input

 

 

 

 

 

 

 

 

 

 

 

10

 

 

15

 

 

mS

 

 

Maximum Output Capacitance

 

 

Full load; 5% overshoot of Vout at startup

 

 

Vout 1

 

 

 

 

 

 

 

 

10000

 

 

µF

 

 

 

 

 

 

Vout 2

 

 

 

 

 

 

 

 

10000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EFFICIENCY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100% Load

 

 

Iout1, Iout2 full load, 48vdc Vin

 

 

 

 

 

 

88

 

 

 

 

 

%

 

 

60% Load

 

 

Iout1, Iout2 60% of full load, 48vdc Vin

 

 

 

 

 

 

88

 

 

 

 

 

%

 

 

ISOLATION CHARACTERISTICS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input to Output

 

 

 

 

 

 

 

 

1500

 

 

 

 

 

 

 

 

Vdc

 

 

Isolation Resistance

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

MΩ

 

 

Isolation Capacitance

 

 

 

 

 

 

 

 

 

 

 

3000

 

 

 

 

 

pF

 

 

FEATURE CHARACTERISTICS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Switching Frequency

 

 

 

 

 

 

 

 

 

 

 

350

 

 

 

 

 

kHz

 

 

ON/OFF Control, (Logic Low-Module ON)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Logic Low

 

 

Von/off at Ion/off=1.0mA

 

 

 

0

 

 

 

 

 

0.8

 

 

V

 

 

Logic High

 

 

Von/off at Ion/off=0.0 µA

 

 

 

 

 

 

 

 

 

18

 

 

V

 

 

ON/OFF Current

 

 

Ion/off at Von/off=0.0V

 

 

 

 

 

 

 

 

 

1

 

 

mA

 

 

Leakage Current

 

 

Logic High, Von/off=15V

 

 

 

 

 

 

 

 

 

50

 

 

uA

 

 

Output Voltage Trim Range

 

 

Pout max rated power

 

 

 

-10

 

 

 

 

 

+10

 

 

%

 

 

Output Over-Voltage Protection

 

 

Over full temp range; %of nominal Vout

 

 

 

115

 

 

122

 

 

130

 

 

%

 

 

GENERAL SPECIFICATIONS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MTBF

 

 

Io=80% of Io, max; Ta=25°C,300FLM

 

 

 

 

 

 

3.0

 

 

 

 

 

M hours

 

 

Weight

 

 

 

 

 

 

 

 

 

 

 

26.5

 

 

 

 

 

grams

 

 

Over-Temperature Shutdown

 

 

Please refer to figure 27 for measuring point

 

 

 

 

 

 

122

 

 

 

 

 

°C

 

2

DS_Q48DR1R833_03162007

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Delta Electronics Series Q48DR manual Parameter Q48DR1R833NRFA

Series Q48DR specifications

Delta Electronics, a prominent player in power management solutions, has expanded its product portfolio with the introduction of the Series Q48DR. This versatile DC-DC converter is specifically designed to meet the rigorous demands of modern industrial, telecommunications, and networking applications. The Q48DR series is noted for its high efficiency, compact design, and wide input voltage range, making it an ideal choice for power-sensitive environments.

One of the standout features of the Q48DR series is its high efficiency rating, typically exceeding 90%. This efficiency translates into reduced energy consumption and lower thermal output, which is crucial in applications requiring continuous operation. The advanced topology employed in the Q48DR not only maximizes energy conversion but also ensures minimal power losses across a variety of loads.

The input voltage range of the Q48DR is impressively broad, accommodating inputs from 36V to 75V DC. This wide input range ensures compatibility with a variety of power systems, simplifying integration in different setups. Moreover, the output voltage is adjustable, allowing users to fine-tune the power supply to match specific application requirements, typically ranging from 12V to 3.3V.

In addition to flexibility, the Q48DR series incorporates an array of protective features. These include overload protection, over-voltage protection, and thermal shutdown. These safety mechanisms are essential for safeguarding sensitive electronic components and maintaining system reliability in demanding environments.

The construction of the Q48DR is another important aspect, with a compact design that facilitates easier installation in space-constrained applications. The converter is housed in a robust metal casing, providing EMI shielding and thermal management. This design ensures that the unit can operate reliably in harsh industrial settings while minimizing electromagnetic interference with other devices.

Furthermore, Delta Electronics places a strong emphasis on sustainability. The Q48DR series meets RoHS standards, reflecting the company's commitment to reducing environmental impact without compromising performance. With a comprehensive range of certifications, including UL and CE, the Q48DR is built to provide peace of mind to users while ensuring compliance with global standards.

In summary, the Delta Electronics Series Q48DR DC-DC converter exemplifies advanced power management through its high efficiency, versatile input/output specifications, protective features, and compact design. These characteristics make it an ideal solution for a multitude of applications in various sectors, ensuring reliable performance and ease of integration.