Q48SL05020NRFA [DELTA]

Delphi Series Q48SL, 100W Quarter Brick Family DC/DC Power Modules: 48V in, 1.5V/35A out; 德尔福系列Q48SL ， 100W 1/4砖系列DC / DC模块电源： 48V IN， 1.5V / 35A出


型号：	Q48SL05020NRFA
厂家：	DELTA ELECTRONICS, INC.
描述：	Delphi Series Q48SL, 100W Quarter Brick Family DC/DC Power Modules: 48V in, 1.5V/35A out 德尔福系列Q48SL ， 100W 1/4砖系列DC / DC模块电源： 48V IN， 1.5V / 35A出
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中文：	中文翻译
下载：	下载PDF数据表文档文件

FEATURES

ꢀ

High efficiency: 85% @ 1.5V/ 35A

ꢀ

Size: 57.9mmx36.8mmx12.7mm

(2.28”x1.45”x0.50”)

ꢀ

Standard footprint

Industry standard pin out

Fixed frequency operation

Metal baseplate

Input UVLO, Output OCP, OVP, OTP

Basic insulation

No minimum load required

2:1 Input voltage range

ISO 9001, TL 9000, ISO 14001, QS9000,

OHSAS18001 certified manufacturing

facility

ꢀ

UL/cUL 60950 (US & Canada)

Recognized, and TUV (EN60950)

Certified

CE mark meets 73/23/EEC and

93/68/EEC directives

Delphi Series Q48SL, 100W Quarter Brick Family

DC/DC Power Modules: 48V in, 1.5V/35A out

OPTIONS

The Delphi Series Q48SL Quarter Brick, 48V input, single output, isolated

DC/DC converter is the latest offering from a world leader in power system

and technology and manufacturing -- Delta Electronics, Inc. This product

family provides up to 100 watts of power or 35A of output current (2.5V and

below) in an industry standard footprint. With creative design technology

and optimization of component placement, these converters possess

outstanding electrical and thermal performances, as well as extremely high

reliability under highly stressful operating conditions. All models are fully

protected from abnormal input/output voltage, current, and temperature

conditions. The Delphi Series converters meet all safety requirements with

basic insulation.

ꢀ

Positive On/Off logic

Short pin lengths available

APPLICATIONS

ꢀ

Telecom/Datacom

Wireless Networks

Optical Network Equipment

Server and Data Storage

Industrial/Testing Equipment

DATASHEET

DS_Q48SL1R535_01192007

TECHNICAL SPECIFICATIONS

(T_A=25°C, airflow rate=300 LFM, V_in=48Vdc, nominal Vout unless otherwise noted.)

PARAMETER

NOTES and CONDITIONS

Q48SL1R535 (Standard)

Min.

Typ.

Max.

Units

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous

Transient (100ms)

Operating Temperature

Storage Temperature

Vdc

°C

100ms

100

125

Refer to Fig.21 for measuring point

-40

-55

°C

Input/Output Isolation Voltage

INPUT CHARACTERISTICS

Operating Input Voltage

Input Under-Voltage Lockout

Turn-On Voltage Threshold

Turn-Off Voltage Threshold

Lockout Hysteresis Voltage

Input Over-Voltage Lockout

Turn-Off Voltage Threshold

Turn-On Voltage Threshold

Maximum Input Current

No-Load Input Current

1 minute

1500

Vdc

A²s

100% Load, 36Vin

2.1

150

100

0.015

Off Converter Input Current

Inrush Current(I²t)

Input Reflected-Ripple Current

Input Voltage Ripple Rejection

OUTPUT CHARACTERISTICS

Output Voltage Set Point

Output Voltage Regulation

Over Load

Over Line

Over Temperature

Total Output Voltage Range

Output Voltage Ripple and Noise

Peak-to-Peak

P-P thru 12µH inductor, 5Hz to 20MHz

120 Hz

Vin=48V, Io=Io.max, Tc=25℃

Vdc

1.47

1.43

1.50

1.53

Io=Io,min to Io,max

Vin=36V to 75V

Tc=-40℃ to 100℃

±2

±15

±5

±50

1.57

over sample load, line and temperature

5Hz to 20MHz bandwidth

Full Load, 1µF ceramic, 10µF tantalum

110

RMS

Operating Output Current Range

Output DC Current-Limit Inception

DYNAMIC CHARACTERISTICS

Output Voltage Current Transient

Positive Step Change in Output Current

Negative Step Change in Output Current

Settling Time (within 1% Vout nominal)

Turn-On Transient

110

Output Voltage 10% Low

150

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

50% Io.max to 75% Io.max

150

300

75% Io.max to 50% Io.max

Start-Up Time, From On/Off Control

Start-Up Time, From Input

Maximum Output Capacitance

EFFICIENCY

10000

µF

Full load; 5% overshoot of Vout at startup

100% Load

60% Load

86.5

ISOLATION CHARACTERISTICS

Input to Output

Input to Case

Output to Case

Isolation Resistance

Isolation Capacitance

FEATURE CHARACTERISTICS

Switching Frequency

1500

500

Vdc

MΩ

1200

230

kHz

ON/OFF Control, Negative Remote On/Off logic

Logic Low (Module On)

Logic High (Module Off)

ON/OFF Control, Positive Remote On/Off logic

Logic Low (Module Off)

Logic High (Module On)

ON/OFF Current (for both remote on/off logic)

Leakage Current (for both remote on/off logic)

Output Voltage Trim Range

Output Voltage Remote Sense Range

Output Over-Voltage Protection

GENERAL SPECIFICATIONS

MTBF

Von/off at Ion/off=1.0mA

Von/off at Ion/off=0.0 µA

2.4

0.8

Von/off at Ion/off=1.0mA

Von/off at Ion/off=0.0 µA

Ion/off at Von/off=0.0V

2.4

0.4

Logic High, Von/off=15V

Across Pins 9 & 5, Pout ≦ max rated power

Pout ≦ max rated power

Over full temp range; % of nominal Vout

-20

+10

130

115

122

Io=80% of Io, max; Tc=40°C

2.5

110

M hours

grams

°C

Weight

Over-Temperature Shutdown

Refer to Fig.21 for measuring point

DS_Q48SL1R535_01192007

ELECTRICAL CHARACTERISTICS CURVES

14.0

12.0

10.0

8.0

36Vin

48Vin

75Vin

36Vin

48Vin

75Vin

6.0

4.0

2.0

0.0

OUTPUT CURRENT (A)

OUTPUT CURRENT(A)

Figure 1: Efficiency vs. load current for minimum, nominal, and

Figure 2: Power dissipation vs. load current for minimum,

maximum input voltage at 25°C.

nominal, and maximum input voltage at 25°C.

2.0

Io=35A

Io=21A

Io=3.5A

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

INPUT VOLTAGE (V)

Figure 3: Typical input characteristics at room temperature

DS_Q48SL1R535_01192007

ELECTRICAL CHARACTERISTICS CURVES

For Negative Remote On/Off Logic

Figure 4: Turn-on transient at full rated load current (resistive

load) (2 ms/div). Top Trace: Vout; 500mV/div; Bottom Trace:

ON/OFF input: 2V/div

Figure 5: Turn-on transient at zero load current (2 ms/div). Top

Trace: Vout: 500mV/div; Bottom Trace: ON/OFF input: 2V/div

For Positive Remote On/Off Logic

Figure 6: Turn-on transient at full rated load current (resistive

load) (2 ms/div). Top Trace: Vout; 500mV/div; Bottom Trace:

ON/OFF input: 2V/div

Figure 7: Turn-on transient at zero load current (2 ms/div). Top

Trace: Vout: 500mV/div; Bottom Trace: ON/OFF input: 2V/div

DS_Q48SL1R535_01192007

ELECTRICAL CHARACTERISTICS CURVES

Figure 8: Output voltage response to step-change in load

current (75%-50%-75% of Io, max; di/dt = 0.1A/µs). Load cap:

10µF, tantalum capacitor and 1µF ceramic capacitor. Top Trace:

Vout (100mV/div), Bottom Trace: Iout (10A/div). Scope

measurement should be made using a BNC cable (length

shorter than 20 inches). Position the load between 51 mm to 76

mm (2 inches to 3 inches) from the module.

Figure 9: Output voltage response to step-change in load

current (75%-50%-75% of Io, max; di/dt = 2.5A/µs). Load cap:

470µF, 35mΩ ESR solid electrolytic capacitor and 1µF ceramic

capacitor. Top Trace: Vout (100mV/div), Bottom Trace: Iout

(10A/div). Scope measurement should be made using a BNC

cable (length shorter than 20 inches). Position the load

between 51 mm to 76 mm (2 inches to 3 inches) from the

module.

Vi(+)

Vi(-)

Cs:220uF

ESR< 0.1

33uF

ESR< 0.5

Ω

﹫20℃100KHz

Figure 10: Test set-up diagram showing measurement points

for Input Terminal Ripple Current and Input Reflected Ripple

Current.

Note: Measured input reflected-ripple current with a simulated

source Inductance (L_TEST) of 12 µH. Capacitor Cs offset

possible battery impedance. Measure current as shown above.

DS_Q48SL1R535_01192007

ELECTRICAL CHARACTERISTICS CURVES

Figure 11: Input Terminal Ripple Current, i_c, at full rated output

current and nominal input voltage with 12µH source impedance

and 33µF electrolytic capacitor (200 mA/div).

Figure 12: Input reflected ripple current, i_s, through a 12µH

source inductor at nominal input voltage and rated load current

(10 mA/div).

Copper Strip

Vo(+)

SCOPE

RESISTIVE

LOAD

10u

Vo(-)

Figure 13: Output voltage noise and ripple measurement test

setup

DS_Q48SL1R535_01192007

ELECTRICAL CHARACTERISTICS CURVES

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

Vin=48V

10 15 20 25 30 35 40 45 50

LOAD CURRENT (A)

Figure 14: Output voltage ripple at nominal input voltage and

rated load current (50 mV/div). Load capacitance: 1µF ceramic

capacitor and 10µF tantalum capacitor. Bandwidth: 20 MHz.

Scope measurement should be made using a BNC cable

(length shorter than 20 inches). Position the load between 51

mm to 76 mm (2 inches to 3 inches) from the module.

Figure 15: Output voltage vs. load current showing typical

current limit curves and converter shutdown points.

DS_Q48SL1R535_01192007

DESIGN CONSIDERATIONS

The input source must be insulated from the ac mains

by reinforced or double insulation.

Input Source Impedance

The impedance of the input source connecting to the

DC/DC power modules will interact with the modules and

affect the stability. A low ac-impedance input source is

recommended. If the source inductance is more than a few

µH, we advise adding a 10 to 100 µF electrolytic capacitor

(ESR < 0.7 Ω at 100 kHz) mounted close to the input of the

module to improve the stability.

The input terminals of the module are not operator

accessible.

If the metal baseplate is grounded, one Vi pin and one

Vo pin shall also be grounded.

A SELV reliability test is conducted on the system

where the module is used, in combination with the

module, to ensure that under a single fault, hazardous

voltage does not appear at the module’s output.

Layout and EMC Considerations

Delta’s DC/DC power modules are designed to operate in a

wide variety of systems and applications. For design

assistance with EMC compliance and related PWB layout

issues, please contact Delta’s technical support team. An

external input filter module is available for easier EMC

compliance design. Application notes to assist designers

in addressing these issues are pending release.

When installed into a Class II equipment (without

grounding), spacing consideration should be given to the

end-use installation, as the spacing between the module

and mounting surface have not been evaluated.

The power module has extra-low voltage (ELV) outputs

when all inputs are ELV.

Safety Considerations

This power module is not internally fused. To achieve

optimum safety and system protection, an input line fuse

is highly recommended. The safety agencies require a

normal-blow fuse with 20A maximum rating to be installed

in the ungrounded lead. A lower rated fuse can be used

based on the maximum inrush transient energy and

maximum input current.

The power module must be installed in compliance with the

spacing and separation requirements of the end-user’s

safety agency standard, i.e., UL60950, CAN/CSA-C22.2 No.

60950-00 and EN60950:2000 and IEC60950-1999, if the

system in which the power module is to be used must meet

safety agency requirements.

Basic insulation based on 75 Vdc input is provided between

the input and output of the module for the purpose of

applying insulation requirements when the input to this

DC-to-DC converter is identified as TNV-2 or SELV. An

additional evaluation is needed if the source is other than

TNV-2 or SELV.

Soldering and Cleaning Considerations

Post solder cleaning is usually the final board assembly

process before the board or system undergoes electrical

testing. Inadequate cleaning and/or drying may lower the

reliability of a power module and severely affect the

finished circuit board assembly test. Adequate cleaning

and/or drying is especially important for un-encapsulated

and/or open frame type power modules. For assistance on

appropriate soldering and cleaning procedures, please

contact Delta’s technical support team.

When the input source is SELV circuit, the power module

meets SELV (safety extra-low voltage) requirements. If the

input source is a hazardous voltage which is greater than 60

Vdc and less than or equal to 75 Vdc, for the module’s output

to meet SELV requirements, all of the following must be met:

DS_Q48SL1R535_01192007

FEATURES DESCRIPTIONS

Over-Current Protection

Vi(+)

Vo(+)

The modules include an internal output over-current

protection circuit, which will endure current limiting for

an unlimited duration during output overload. If the

output current exceeds the OCP set point, the modules

will automatically shut down (hiccup mode).

Sense(+)

ON/OFF

Sense(-)

Vi(-)

Vo(-)

The modules will try to restart after shutdown. If the

overload condition still exists, the module will shut down

again. This restart trial will continue until the overload

condition is corrected.

Figure 16: Remote on/off implementation

Remote Sense

Over-Voltage Protection

Remote sense compensates for voltage drops on the

output by sensing the actual output voltage at the point

of load. The voltage between the remote sense pins

and the output terminals must not exceed the output

voltage sense range given here:

The modules include an internal output over-voltage

protection circuit, which monitors the voltage on the

output terminals. If this voltage exceeds the over-voltage

set point, the module will shut down and latch off. The

over-voltage latch is reset by either cycling the input

power or by toggling the on/off signal for one second.

[Vo(+) – Vo(–)] – [SENSE(+) – SENSE(–)] ≤ 10% × Vout

Over-Temperature Protection

This limit includes any increase in voltage due to

remote sense compensation and output voltage set

point adjustment (trim).

The over-temperature protection consists of circuitry

that provides protection from thermal damage. If the

temperature exceeds the over-temperature threshold

the module will shut down.

Vi(+) Vo(+)

Sense(+)

The module will try to restart after shutdown. If the

over-temperature condition still exists during restart, the

module will shut down again. This restart trial will

continue until the temperature is within specification.

Sense(-)

Vi(-) Vo(-)

Remote On/Off

Contact

Resistance

Contact and Distribution

Losses

The remote on/off feature on the module can be either

negative or positive logic. Negative logic turns the

module on during a logic low and off during a logic high.

Positive logic turns the modules on during a logic high

and off during a logic low.

Figure 17: Effective circuit configuration for remote sense

operation

If the remote sense feature is not used to regulate the

output at the point of load, please connect SENSE(+) to

Vo(+) and SENSE(–) to Vo(–) at the module.

Remote on/off can be controlled by an external switch

between the on/off terminal and the Vi(-) terminal. The

switch can be an open collector or open drain.

The output voltage can be increased by both the

remote sense and the trim; however, the maximum

increase is the larger of either the remote sense or the

trim, not the sum of both.

For negative logic if the remote on/off feature is not

used, please short the on/off pin to Vi(-). For positive

logic if the remote on/off feature is not used, please

leave the on/off pin to floating.

When using remote sense and trim, the output voltage

of the module is usually increased, which increases the

power output of the module with the same output

current.

Care should be taken to ensure that the maximum

output power does not exceed the maximum rated

power.

DS_Q48SL1R535_01192007

FEATURES DESCRIPTIONS (CON.)

Output Voltage Adjustment (TRIM)

To increase or decrease the output voltage set point,

the modules may be connected with an external

resistor between the TRIM pin and either the

SENSE(+) or SENSE(-). The TRIM pin should be left

open if this feature is not used.

Figure 19: Circuit configuration for trim-up (increase output

voltage)

If the external resistor is connected between the TRIM

and SENSE (+) the output voltage set point increases

(Fig. 19). The external resistor value required to obtain

a percentage output voltage change △% is defined

as:

Figure 18: Circuit configuration for trim-down (decrease

output voltage)

5.11Vout 1+ ∆%⁾5.11

⎞

⎟

(

⎛

⎜

⎝

If the external resistor is connected between the TRIM

and SENSE (-) pins, the output voltage set point

decreases (Fig. 18). The external resistor value

required to obtain a percentage of output voltage

change △% is defined as:

Rtrim − up =

−

−10.22

(

kΩ

)

^ref∆%

∆%

⎠

Where V_ref=1.225V

⎛ 5.11

⎞

⎟

⎠

Ex. When Trim-up +10%(1.5V×1.1=1.65V)

Rtrim − down =

− 10 .22

(

kΩ

)

⎜

∆ %

⎝

)

5.11×1.5⁽1+0.1 5.11

⎞

⎛

⎜

Rtrim−up=

−

−10.22⎟ = 7.508

(

kΩ

)

⎟

1.225×0.1

0.1

⎝

⎠

Ex. When Trim-down -20%(1.5V×0.8=1.20V)

The output voltage can be increased by both the remote

sense and the trim, however the maximum increase is

the larger of either the remote sense or the trim, not the

sum of both.

5.11

0.2

⎞

⎛

⎜

⎝

Rtrim − down =

−10.22 = 15.33

(

kΩ

)

⎟

⎠

When using remote sense and trim, the output voltage

of the module is usually increased, which increases the

power output of the module with the same output

current.

Care should be taken to ensure that the maximum

output power of the module remains at or below the

maximum rated power.

DS_Q48SL1R535_01192007

THERMAL CONSIDERATIONS

Thermal Derating

Thermal management is an important part of the system

design. To ensure proper, reliable operation, sufficient

cooling of the power module is needed over the entire

temperature range of the module. Convection cooling is

usually the dominant mode of heat transfer.

Heat can be removed by increasing airflow over the

module. The module’s maximum case temperature is

+100°C. To enhance system reliability, the power

module should always be operated below the maximum

operating temperature. If the temperature exceeds the

maximum module temperature, reliability of the unit may

be affected.

Hence, the choice of equipment to characterize the

thermal performance of the power module is a wind

tunnel.

THERMAL CURVES

Thermal Testing Setup

Delta’s DC/DC power modules are characterized in

heated vertical wind tunnels that simulate the thermal

environments encountered in most electronics

equipment. This type of equipment commonly uses

vertically mounted circuit cards in cabinet racks in which

the power modules are mounted.

The following figure shows the wind tunnel

characterization setup. The power module is mounted

on a test PWB and is vertically positioned within the

wind tunnel. The space between the neighboring PWB

and the top of the power module is constantly kept at

6.35mm (0.25’’).

Figure 21: Hot spot temperature measured point

*The allowed maximum hot spot temperature is defined at 100℃

PWB

MODULE

FACING PWB

Q48SL1R535(Standard) Output Current vs. Ambient Temperature and Air Velocity

@ Vin = 48V (Transverse Orientation, no heat sink)

Output Current(A)

Natural

Convection

AIR VELOCITY

AND AMBIENT

TEMPERATURE

MEASURED BELOW

THE MODULE

100LFM

50.8 (2.0”)

200LFM

300LFM

AIR FLOW

400LFM

500LFM

600LFM

12.7 (0.5”)

Note: Wind Tunnel Test Setup Figure Dimensions are in millimeters and (Inches)

Ambient Temperature (℃)

Figure 20: Wind tunnel test setup

Figure 22: Q48SL1R535NR (Standard) Output current vs.

ambient temperature and air velocity@Vin=48V (Transverse

orientation, no heat sink).

DS_Q48SL1R535_01192007

MECHANICAL DRAWING

Pin No.

Name

Function

-Vin

Negative input voltage

ON/OFF

+Vin

+Vout

+SENSE

TRIM

-SENSE

-Vout

Remote ON/OFF

Positive input voltage

Positive output voltage

Positive remote sense

Output voltage trim

Negative remote sense

Negative output voltage

Pin Specification:

Pins 1-4, 6-8

Pins 5 & 9

1.00mm (0.040”) diameter

1.50mm (0.059”) diameter

All pins are copper with Tin plating.

DS_Q48SL1R535_01192007

PART NUMBERING SYSTEM

1R5

Type of

Product Voltage

Q- Quarter

Brick

Input

Number of Product

Output

Voltage

1R5-1.5V

Output

Current

35-35A

ON/OFF Pin Length

Logic

Option Code

Outputs

S- Single

Series

L – IMS,

48V

N-Negative

P-Positive

R-0.170”

N-0.145”

K-0.110”

A-Standard Functions

F- RoHS 6/6

(Lead Free)

Positive trim

MODEL LIST

Part Number

Q48SL1R535NRFA

Q48SL1R835NRFA

Q48SL2R535NRFA

Q48SL3R330NRFA

Q48SL05020NRFA

Q48SL12010NRFA

INPUT

OUTPUT

EFF @ 100% LOAD

36V~75V

2.1A

2.5A

3.3A

3.7A

4.4A

1.5V

1.8V

2.5V

3.3V

5.0V

12V

35A

85%

87%

89%

91%

90%

91%

36V~75V

35A

30A

20A

10A

Default remote on/off logic is negative and pin length is 0.170”

For different remote on/off logic and pin length, please refer to part numbering system above or contact your local sales

CONTACT: www.delta.com.tw/dcdc

USA:

Telephone:

East Coast: (888) 335 8201

West Coast: (888) 335 8208

Fax: (978) 656 3964

Email: DCDC@delta-corp.com

Asia & the rest of world:

Telephone: +886 3 4526107 ext 6220

Fax: +886 3 4513485

Europe:

Phone: +41 31 998 53 11

Fax: +41 31 998 53 53

Email: DCDC@delta-es.com

Email: DCDC@delta.com.tw

WARRANTY

Delta offers a two (2) year limited warranty. Complete warranty information is listed on our web site or is available upon

request from Delta.

Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delta for its

use, nor for any infringements of patents or other rights of third parties, which may result from its use. No license is granted

by implication or otherwise under any patent or patent rights of Delta. Delta reserves the right to revise these specifications

at any time, without notice.

DS_Q48SL1R535_01192007

Q48SL05020NRFA [DELTA]

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