Q48SB9R650NKFC [DELTA]

Delphi Series Q48SB, 500W Bus Converter DC/DC Power Modules: 48V in, 9.6V/55A out; 德尔福系列Q48SB ， 500W总线转换器DC / DC模块电源： 48V IN， 9.6V / 55A出


型号：	Q48SB9R650NKFC
厂家：	DELTA ELECTRONICS, INC.
描述：	Delphi Series Q48SB, 500W Bus Converter DC/DC Power Modules: 48V in, 9.6V/55A out 德尔福系列Q48SB ， 500W总线转换器DC / DC模块电源： 48V IN， 9.6V / 55A出转换器
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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: 96.8% @9.6V/50A

ꢀ

Standard footprint: 58.4 x 36.8 x12.3mm

(2.30”x1.45”x0.48’’)

ꢀ

Industry standard pinout

Input OVP, UVLO; output OCP and OTP

1500V isolation

Basic insulation

Monotonic startup into normal load and

pre-bias loads

ꢀ

No minimum load required

Constant 500W output power

Parallelable for higher power output

ISO 9001, TL 9000, ISO 14001, QS9000,

OHSAS18001 certified manufacturing

facility

ꢀ

UL/cUL 60950 (US & Canada), and TUV

(EN60950) pending

CE mark Pending

Delphi Series Q48SB, 500W Bus Converter

DC/DC Power Modules: 48V in, 9.6V/55A out

The Delphi Series Q48SB, 48V input, single output, quarter brick, 500W

bus converter is the latest offering from a world leader in power systems

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

family supports intermediate bus architectures and powers multiple

downstream non-isolated point-of-load (POL) converters. The

Q48SB9R6 (5:1) operates from a nominal 48V input and provides up to

500W of power or up to 63A (@ 38Vin) of output current in an industry

standard quarter brick footprint. The Q48SB 5:1 bus converter operates

with 500W constant output power, hence when input voltage drops, the

output current will increase accordingly. Typical efficiency for the

9.6V/50A output is 96.8%. With optimized component placement,

creative design topology, and numerous patented technologies, the

Q48SB bus converter delivers outstanding electrical and thermal

performance. An optional heatsink is available for harsh thermal

requirements.

OPTIONS

ꢀ

Positive On/Off logic

ꢀ

Heatspreader available for

extended operation

Latch mode output OCP and OTP

APPLICATIONS

ꢀ

Datacom / Networking

Wireless Networks

Optical Network Equipment

Server and Data Storage

Industrial/Testing Equipment

DATASHEET

DS_Q48SB9R650_07102006

TECHNICAL SPECIFICATIONS

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

PARAMETER

NOTES and CONDITIONS

Q48SB9R650NRFA

Min. Typ. Max. Units

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous

Operating Temperature

Storage Temperature

124

125

1500

Vdc

°C

Refer to Fig.17 for the measuring point

-40

-55

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

Lockout Hysteresis Voltage

Maximum Input Current

No-Load Input Current

Off Converter Input Current

Inrush Current(I²t)

Vdc

32.5

30.5

35.5

33.5

Vdc

60.5

58.5

Vdc

100% Load, 38V Vin

13.5

200

With 100uF external input capacitor

P-P thru 12µH inductor, 5Hz to 20MHz

L/C

A²s

Input Reflected-Ripple Current

Internal input filter component value

Recommend external input capacitor for system stability

Capacitance

0.47/4.4

uH/uF

0.1

100

0.2

ohm

ESR

100KHz -40 C to 100 C

OUTPUT CHARACTERISTICS

Output Voltage Set Point

Output Voltage Regulation

Over Load

Vin=48V, Io=no load, Ta=25°C

9.6

Vdc

Io=Io,min to Io,max

Vin=38V to 55V

400

600

3.8

Over Line

Over Temperature

Tc=-40°C to 100°C

over sample load, line and temperature

5Hz to 20MHz bandwidth

Full Load, 1µF ceramic, 10µF tantalum

400

11.5

Total Output Voltage Range

Output Voltage Ripple and Noise

Peak-to-Peak

6.8

120

RMS

Operating Output Power Range

480

500

38V<Vin≤42V

42V<Vin≤55V

Output DC Powert-Limit Inception

output voltage 10% lower

% of rated output current

120%

130%

38V≤Vin≤55V

Current share accuracy (2 units in parallel)

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

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

50% Io.max to 75% Io.max

300

200

75% Io.max to 50% Io.max

Start-Up Time, From On/Off Control

Start-Up Time, From Input

Maximum Output Capacitance

Single module operation

2 pcs Parallel module operation

EFFICIENCY

Start up with 20A Load

Start up with 55A Load

Start up with 20A Load

Start up with 110A Load

10000

5000

10000

8000

µF

55A

95.4

95.8

96.4

96.8

50A

33A

ISOLATION CHARACTERISTICS

Input to Output

Isolation Resistance

Isolation Capacitance

FEATURE CHARACTERISTICS

Switching Frequency

1500

Vdc

MΩ

1000

130

kHz

ON/OFF Control for single module operation

Negative Remote On/Off logic

Logic Low (Module On)

-0.7

0.8

Logic High (Module Off)

Positive Remote On/Off logic

Logic Low (Module Off)

-0.7

0.8

Logic High (Module On)

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

Leakage Current (for both remote on/off logic)

GENERAL SPECIFICATIONS

MTBF

Weight (open frame)

Over-Temperature Shutdown

Ion/off at Von/off=0.0V

Logic High, Von/off=15V

0.25

0.3

Io=80% of Io, max; Ta=25°C; 300LFM airflow

Refer to Fig.17 for the measuring point

TBD

129

M hours

grams

°C

DS_Q48SB9R650_07102006

ELECTRICAL CHARACTERISTICS CURVES

25.00

20.00

15.00

10.00

5.00

98.00

96.00

94.00

38V

48V

55V

92.00

48V

38V

90.00

55V

88.00

86.00

0.00

Output Current(A)

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

Figure 2: Power loss vs. load current for minimum, nominal,

maximum input voltage at 25°C

and maximum input voltage at 25°C.

12.00

10.00

8.00

6.00

48V

38V

55V

4.00

2.00

0.00

Output Current(A)

Figure 3: Output voltage regulation vs load current showing

typical current limit curves and converter shutdown points for

minimum, nominal, and maximum input voltage at room

temperature.

DS_Q48SB9R650_07102006

ELECTRICAL CHARACTERISTICS CURVES

For Negative Remote On/Off Logic

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

(5 ms/div). Top Trace: Vout; 5V/div; Bottom Trace: ON/OFF

input: 2V/div

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

Trace: Vout: 5V/div; Bottom Trace: ON/OFF input: 2V/div

For Positive Remote On/Off Logic

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

(5 ms/div). Top Trace: Vout; 5V/div; Bottom Trace: ON/OFF

input: 2V/div

Figure 7: Turn-on transient at zero load current (5 ms/div). Top

Trace: Vout: 5V/div; Bottom Trace: ON/OFF input: 2V/div

DS_Q48SB9R650_07102006

ELECTRICAL CHARACTERISTICS CURVES

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

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

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

Vout (200mV/div, 200us/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 (50%-75%-50% of Io,max; di/dt=1A/µs). Load cap:

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

Vout (200mV/div, 200us/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.

Vin+

Vin-

Cs: 220uF

100uF,

ESR=0.2 ohm @

25^oC 100KHz

Figure 10: Test set-up diagram showing measurement points

for Input Terminal Ripple Current and Input Reflected Ripple

Current.

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

current and nominal input voltage with 12µH source impedance

and 47µF electrolytic capacitor (1A/div, 2us/div).

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 below

DS_Q48SB9R650_07102006

ELECTRICAL CHARACTERISTICS CURVES

Copper Strip

Vo(+)

SCOPE

RESISTIVE

LOAD

10u

Vo(-)

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

source inductor at nominal input voltage and rated load current

(20 mA/div, 2us/div).

Figure 13: Output voltage noise and ripple measurement test

setup.

Figure 14: Output voltage ripple at nominal input voltage and

rated load current (50 mV/div, 2us/div). Load capacitance: 1µF

ceramic capacitor and 10µF tantalum capacitor. Bandwidth: 20

MHz. Scope measurements 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.

DS_Q48SB9R650_07102006

DESIGN CONSIDERATIONS

Input Source Impedance

ꢀ

The input source must be insulated from the ac

mains by reinforced or double insulation.

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 typical

100uF electrolytic capacitor (ESR > 0.1 Ω at 100 kHz, -40^oC to

100^oC.) 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.

Layout and EMC Considerations

ꢀ

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.

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.

Safety Considerations

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.

The power module has extra-low voltage (ELV)

outputs when all inputs are ELV.

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 50A 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.

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

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:

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.

DS_Q48SB9R650_07102006

Remote On/Off

FEATURES DESCRIPTIONS

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.

Over-Current Protection

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, and enter latch mode or hiccup

mode, which is optional.

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.

For hiccup mode, the module 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.

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.

For latch mode, the module will latch off once it

shutdown. The latch is reset by either cycling the input

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

Vo(+)

Vi(+)

ON/OFF

Vi(-)

Load

Over-Temperature Protection

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, and enter latch mode or

auto-restart mode, which is optional.

Vo(-)

Figure 15: Remote on/off implementation

For auto-restart mode, the module will monitor the

module temperature after shutdown. Once the

temperature is within the specification, the module will be

auto-restart,

For latch mode, the module will latch off once it

shutdown. Either cycling the input power or toggling the

on/off signal for one second can reset the latch.

DS_Q48SB9R650_07102006

THERMAL CONSIDERATIONS

THERMAL CURVES

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.

Hence, the choice of equipment to characterize the

thermal performance of the power module is a wind

tunnel.

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.

Figure 17: Hot spot temperature measured point

*The allowed maximum hot spot temperature is defined at 124℃

Q48SB9R650(Standard) Output Current vs. Ambient Temperature and Air Velocity

@Vin = 48V (Transverse Orientation, From Pin 4 to Pin 7, Preliminary Derating Curve)

Output Current(A)

400LFM

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’’).

Natural

Convection

100LFM

200LFM

300LFM

PWB

MODULE

FACING PWB

)

℃

Ambient Temperature (

AIR VELOCITY

Figure 18: Output current vs. ambient temperature and air

velocity@ V_in=48V(Transverse orientation, from pin 4 to pin 7,

preliminary derating curve, without heatspreader)

AND AMBIENT

TEMPERATURE

MEASURED BELOW

THE MODULE

50.8 (2.0”)

AIR FLOW

12.7 (0.5”)

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

TBD

Figure 16: Wind tunnel test setup

Thermal Derating

Heat can be removed by increasing airflow over the

module. The module’s maximum hot spot temperature is

124℃. 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.

Figure 19: Output current vs. ambient temperature and air

velocity@ V_in=48V(Transverse Orientation, with heat spreader)

DS_Q48SB9R650_07102006

MECHANICAL DRAWING (WITHOUT HEATSPREADER)

Pin No.

Name

Function

-Vin

ON/OFF

+Vin

-Vout

+Vout

-Vout

+Vout

Negative input voltage

Remote ON/OFF

Positive input voltage

Negative output voltage (optional)

Positive output voltage

Negative output voltage

Positive output voltage (optional)

Pin Specification:

Pins 1-3 1.0mm (0.040”) diameter

Pins 4-7 1.5mm (0.060”) diameter

All pins are copper with Tin plating

DS_Q48SB9R650_07102006

MECHANICAL DRAWING (WITH HEAT SPREADER)

DS_Q48SB9R650_07102006

PART NUMBERING SYSTEM

9R6

Type of

Product Voltage Outputs

Input Number of Product

Series

Output

Voltage

Output

Current

ON/OFF Pin Length

Logic

Option Code

Q- Quarter 48- 48V S- Single B- Bus

9R6 - 9.6V 50 - 55A @ N- Negative

48Vin P- Positive

R- 0.170” F- RoHS 6/6

N- 0.145” (Lead Free)

K- 0.110”

A- 4 output pin, no

heat spreader

Brick

Converter

C- 2 output pin, no

heat spreader

H- 4 output pin, with

heat spreader

MODEL LIST

MODEL NAME

Q48SB9R650NRFA

Q48SB12040NRFA

INPUT

OUTPUT

Eff. @ 48Vin, 480W Po

36V~57V

14A

9.6V

12V

55A

40A

96.8%

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

Hiccup output OCP and auto-restart OTP are default;

For different remote on/off logic, pin length and output OCP and OTP mode, 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

Europe:

Asia & the rest of world:

Telephone: +886 3 4526107 x6220

Fax: +886 3 4513485

Telephone: +41 31 998 53 11

Fax: +41 31 998 53 53

Email: DCDC@delta-es.tw

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_Q48SB9R650_07102006

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