Q48SB10828PNFH [DELTA]

Delphi Series Q48SB, 300W Bus Converter DC/DC Power Modules: 48V in, 9.6V/31A out; 德尔福系列Q48SB ， 300W总线转换器DC / DC模块电源： 48V IN， 9.6V / 31A出


型号：	Q48SB10828PNFH
厂家：	DELTA ELECTRONICS, INC.
描述：	Delphi Series Q48SB, 300W Bus Converter DC/DC Power Modules: 48V in, 9.6V/31A out 德尔福系列Q48SB ， 300W总线转换器DC / DC模块电源： 48V IN， 9.6V / 31A出转换器
文件：	总11页 (文件大小：634K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

FEATURES

ꢀ

High Efficiency: 95.5% @9.6V/31A

ꢀ

Standard footprint: 57.9 x 36.8 x 12.7mm

(2.28”x1.45”x0.5”)

ꢀ

Industry standard pin out

Fully protected:OTP, OCP, Input OVP, UVLO

2250V isolation

Basic insulation

No minimum load required

Current sharing

ISO 9001, TL 9000, ISO 14001, QS 9000,

OHSAS 18001 certified manufacturing facility

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

(EN60950) Certified

ꢀ

CE mark meets 73/23/EEC and +3/68/EEC

directives

Delphi Series Q48SB, 300W Bus Converter

DC/DC Power Modules: 48V in, 9.6V/31A out

The Delphi Series Q48SB, 48V input, single output, quarter brick, 300W bus

converters are 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 Delphi Series Q48SB

operates from a nominal 48V input and provides up to 300W of power or up

to 31A of output current in an industry standard quarter brick footprint. The

Q48SB product currently supports two input ranges: the Q48SB120 features

an input voltage range of 42V to 53V and provides 4:1 unregulated output of

12V at 20A or 25A. The Q48SB108 features a wider input voltage range of

36V to 60V and provides 5:1 unregulated output of 9.6V at up to 31A.

Typical efficiency for the 9.6V/31A or 10.8V/28A module is 95.5%. 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

ꢀ

Short pin lengths

Heatsink available for extended

operation

APPLICATIONS

ꢀ

Datacom / Networking

Wireless Networks

Optical Network Equipment

Server and Data Storage

Industrial/Testing Equipment

DATASHEET

DS_Q48SB10828_11062006

TECHNICAL SPECIFICATIONS

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

PARAMETER

NOTES and CONDITIONS

Q48SB10828NRFA

Min.

Typ.

Max.

Units

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous

Operating Temperature

Storage Temperature

Vdc

°C

Refer to Figure 15 for the measuring point

-40

-55

+124

+125

2250

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

Vdc

120

Off Converter Input Current

0.02

Inrush Current(I²t)

A²s

Input Reflected-Ripple Current

OUTPUT CHARACTERISTICS

Output Voltage Set Point

RMS thru 12µH inductor, 5Hz to 20MHz

mArms

Vin=48V, Io=no load, Ta=25°C

Vin=54V, Io=no load, Ta=25°C

9.6

10.8

Vdc

Output Voltage Regulation

Over Load

Io=Io,min to Io,max

Vin=36V to 60V

400

4.8

500

Over Line

Over Temperature

Ta=-40°C to 85°C

over sample load, line and temperature

5Hz to 20MHz bandwidth

Full Load, 1µF ceramic, 10µF tantalum

200

12.1

Total Output Voltage Range

Output Voltage Ripple and Noise

Peak-to-Peak

6.6

120

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

Output Voltage 10% Low

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

50% Io.max to 75% Io.max

150

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

100% Load

60% Load

95.5

96.5

ISOLATION CHARACTERISTICS

Input to Output

Isolation Resistance

Isolation Capacitance

FEATURE CHARACTERISTICS

Switching Frequency

2250

Vdc

MΩ

750

130

kHz

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

Logic Low

Von/off at Ion/off=1.0mA

Von/off at Ion/off=0.0 µA

Ion/off at Von/off=0.0V

2.4

0.8

Logic High

ON/OFF Current

GENERAL SPECIFICATIONS

MTBF

Weight

Io=80% of Io, max; Ta=25°C

2.88

127

M hours

grams

°C

Over-Temperature Shutdown

Refer to Figure 15 for the measuring point

DS_Q48SB10828_11062006

ELECTRICAL CHARACTERISTICS CURVES

100

36Vin

48Vin

60Vin

36Vin

48Vin

60Vin

OUTPUT CURRENT(A)

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.

36Vin

48Vin

60Vin

OUTPUT CURENT(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_Q48SB10828_11062006

ELECTRICAL CHARACTERISTIC CURVES

Figure 4: Turn-on transient at full rated load current (5 ms/div).

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

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

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

Figure 6: 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), 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 7: 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), 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 8: 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_Q48SB10828_11062006

ELECTRICAL CHARACTERISTIC CURVES

Figure 9: Input Terminal Ripple Current, i_c, at full rated output

current and nominal input voltage with 12µH source impedance

and 100µF electrolytic capacitor (200 mA/div).

Figure 10: Input reflected ripple current, i_s, through a 12µH

source inductor at nominal input voltage and rated load current

(5 mA/div).

Copper Strip

Vo(+)

SCOPE

RESISTIVE

LOAD

10u

Vo(-)

Figure 11: Output voltage noise and ripple measurement test

setup.

Figure 12: 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.

DS_Q48SB10828_11062006

DESIGN CONSIDERATIONS

FEATURES DESCRIPTIONS

Input Source Impedance

Over-Current Protection

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 47 to 220µF electrolytic

capacitor (ESR < 0.5 Ω at 100 kHz) mounted close to

the input of the module to improve the stability.

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).

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.

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.

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.

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.

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.

Remote On/Off

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.

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 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.

Vi(+) Vo(+)

ON/OFF

Vi(-)

Vo(-)

Figure 13: Remote on/off implementation

DS_Q48SB10828_11062006

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 15: Hot spot temperature measured point

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

Q48SB10828NR (Standard) Output Current vs. Ambient Temperature and Air Velocity

@ Vin=48V (Transverse Orientation, Without Heat spreader)

Output Current (A)

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

400LFM

500LFM

600LFM

100LFM

200LFM

PWB

300LFM

FACING PWB

MODULE

Ambient Temperature (℃)

Figure 16: Output current vs. ambient temperature and air

velocity @V_in=48V(Transverse Orientation, without heat

spreader)

AIR VELOCITY

AND AMBIENT

TEMPERATURE

MEASURED BELOW

Q48SB10828NR (Standard) Output Current vs. Ambient Temperature and Air Velocity

50.8 (2.0”)

THE MODULE

@ Vin=48V (Longitudinal Orientation, Without Heat spreader)

Output Current (A)

AIR FLOW

12.7 (0.5”)

Natural

Convection

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

400LFM

500LFM

600LFM

100LFM

200LFM

Figure 14: Wind tunnel test setup figure

300LFM

Thermal Derating

Heat can be removed by increasing airflow over the

module. The module’s maximum hot spot temperature

is +124°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.

Ambient Temperature (℃)

Figure 17: Output current vs. ambient temperature and air

velocity @V_in=48V (Longitudinal Orientation, without

heatspreader)

DS_Q48SB10828_11062006

THERMAL CURVES

Q48SB10828NR (Standard) Output Current vs. Ambient Temperature and Air Velocity

@ Vin=48V (Transverse Orientation, With Heat spreader)

Output Current (A)

Natural

Convection

400LFM

500LFM

600LFM

100LFM

200LFM

300LFM

Ambient Temperature (℃)

Figure 18: Output current vs. ambient temperature and air

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

Q48SB10828NR (Standard) Output Current vs. Ambient Temperature and Air Velocity

@ Vin=48V (Longitudinal Orientation, With Heat spreader)

Output Current (A)

Natural

Convection

400LFM

500LFM

600LFM

100LFM

200LFM

300LFM

Ambient Temperature (℃)

Figure 19: Output current vs. ambient temperature and air

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

DS_Q48SB10828_11062006

MECHANICAL DRAWING

Pin No.

Name

Function

-Vin

ON/OFF

+Vin

+Vout

-Vout

Negative input voltage

Remote ON/OFF

Positive input voltage

Positive output voltage

Negative output voltage

Pin Specification:

Pins 1-3 1.0mm (0.040”) diameter

Pins 5-6 1.5mm (0.059”) diameter

All pins are copper with Tin plating

DS_Q48SB10828_11062006

MECHANICAL DRAWING (WITH HEAT SPREADER)

DS_Q48SB10828_11062006

PART NUMBERING SYSTEM

108

Type of

Product Voltage Outputs

Input Number of Product

Output

Voltage

108- 9.6V

Output

Current

28 - 31A

ON/OFF

Logic

Length

Option Code

Series

B- Bus

Q- Quarter 48- 48V

Brick

S- Single

N- Negative R- 0.170” F- RoHS 6/6

A- Standard functions

H- with heat spreader

Converter

P- Positive N- 0.145”

K- 0.110”

(Lead Free)

MODEL LIST

MODEL NAME

INPUT

OUTPUT

EFF @ 100% LOAD

Q48SB10828NRFA

Q48SB12020NRFA

Q48SB12025NRFA

36V~60V

6.3A

9.6V

12V

31A

95.5%

42V~53V

20A

25A

96%

6.25A

96%

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

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.twT

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_Q48SB10828_11062006

Q48SB10828PNFH [DELTA]

相关型号：

Q48SB10828PRFA

Q48SB10828PRFH

Q48SB12020NRFA

Q48SB12025NRFA

Q48SB12040NRFA

Q48SB9R650NKFA

Q48SB9R650NKFC

Q48SB9R650NKFH

Q48SB9R650NNFA

Q48SB9R650NNFC

Q48SB9R650NNFH

Q48SB9R650NRFA