Q48SK12033 [DELTA]

Quarter Brick Family DC/DC Power Modules:36~75V in, 12V/33A out, 400W;


型号：	Q48SK12033
厂家：	DELTA ELECTRONICS, INC.
描述：	Quarter Brick Family DC/DC Power Modules:36~75V in, 12V/33A out, 400W
文件：	总13页 (文件大小：366K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

FEATURES

High efficiency : 95.5% @ 12V/33A

Size:

57.9x36.8x11.2mm (2.28”x1.45”x0.44”)

(w/o heat spreader)

57.9*36.8*12.7mm(2.28”*1.45”0.50”)

(with heat spreader)

Standard footprint

Industry standard pin out

Fixed frequency operation

Input UVLO, Output OCP, OVP, OTP

Hiccup output over current protection

(OCP)

Hiccup output over voltage protection

(OVP)

Auto recovery OTP and input UVLO

2250V isolation and basic insulation

No minimum load required

ISO 9001, TL 9000, ISO 14001, QS9000,

OHSAS18001 certified manufacturing

facility

UL/cUL 60950-1 (US & Canada)

recognized

Delphi Series Q48SK, Quarter Brick Family

DC/DC Power Modules:

36~75V in, 12V/33A out, 400W

OPTIONS

Latched over current protection

The Delphi series Q48SK12033, quarter brick, 36~75V 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 provides up to 400 watts of power in an industry standard footprint

and pin out. 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. The Q48SK12033 offers more than 95.5% high

efficiency at 33A full load. The Q48SK12033 is fully protected from abnormal

input/output voltage, current, and temperature conditions and meets all

safety requirements with basic insulation.

Positive On/Off logic

Heat spreader available for

extended operation.

APPLICATIONS

Telecom / Datacom

Wireless Networks

Optical Network Equipment

Server and Data Storage

Industrial / Testing Equipment

DATASHEET

DS_Q48SK12033_01062011

TECHNICAL SPECIFICATIONS

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

PARAMETER

NOTES and CONDITIONS

Q48SK12033 (Standard)

Min.

Typ.

Max.

Units

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous

100

117

108

125

2250

Vdc

°C

Transient

100ms

Operating Hot Spot Temperature (Without heat spreader)

Operating Case Temperature (With heat spreader)

Storage Temperature

Refer to figure 18 for measuring point

Refer to figure 20 for measuring point

-40

-55

°C

Input/Output Isolation Voltage

INPUT CHARACTERISTICS

Operating Input Voltage

Vdc

Input Under-Voltage Lockout

Turn-On Voltage Threshold

Turn-Off Voltage Threshold

Lockout Hysteresis Voltage

Maximum Input Current

32.0

30.0

34.0

32.0

36.0

34.0

Vdc

100% Load, 36Vin

Vin=48V, Io=0A

No-Load Input Current

170

A²s

Off Converter Input Current

Inrush Current (I²t)

Input Reflected-Ripple Current

Input Voltage Ripple Rejection

OUTPUT CHARACTERISTICS

Output Voltage Set Point

P-P thru 12µH inductor, 5Hz to 20MHz

120 Hz

-30

Vin=48V, Io=0, Tc=25°C

11.4

11.2

11.7

12.0

Vdc

Output Voltage Regulation

Over Load

Vin=48V, Io=Io,min to Io,max

Vin=36V to 75V, Io=Io min

Vin=48V, Tc=-40°C to 85°C

±30

±50

±100

±80

Vdc

Over Line

Over Temperature

Total Output Voltage Range

Output Voltage Ripple and Noise

Peak-to-Peak

over sample load, line and temperature

5Hz to 20MHz bandwidth

12.0

Full Load, 1µF ceramic, 10µF tantalum

150

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

110

140

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

50% Io.max to 75% Io.max

300

µs

75% Io.max to 50% Io.max

Start-Up Time, From On/Off Control

Start-Up Time, From Input

Maximum Output Capacitance

EFFICIENCY

µF

Low ESR CAP (OSCON), 100% load;

6000

2250

100% Load

Vin=48V

95.5

95.2

60% Load

ISOLATION CHARACTERISTICS

Input to Output

Vdc

MΩ

Isolation Resistance

Isolation Capacitance

1000

160

FEATURE CHARACTERISTICS

Switching Frequency

kHz

ON/OFF Control, Negative Remote On/Off logic

Logic Low (Module On)

Von/off at Ion/off=1.0mA

Von/off at Ion/off=0.0 µA

0.8

Logic High (Module Off)

ON/OFF Control, Positive Remote On/Off logic

Logic Low (Module Off)

Von/off at Ion/off=1.0mA

Von/off at Ion/off=0.0 µA

0.8

Logic High (Module On)

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

Leakage Current (for both remote on/off logic)

Output Over-Voltage Protection

GENERAL SPECIFICATIONS

MTBF(with heat spreader)

Weight(without heat spreader)

Weight(with heat spreader)

Over-Temperature Shutdown ( Without heat spreader)

Ion/off at Von/off=0.0V

Logic High, Von/off=15V

140

Over full temp range; % of nominal Vout

115

Io=80% of Io, max; Tc=25°C;Airflow=300LFM

1.15

50.5

65.5

122

M hours

grams

°C

Refer to figure 18 for measuring point

Refer to figure 20 for measuring point

Over-Temperature Shutdown

(With heat spreader)

113

°C

DS_Q48SK12033_01062011

ELECTRICAL CHARACTERISTICS CURVES

36V

48V

75V

36V

48V

75V

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 85°C.

nominal, and maximum input voltage at 85°C.

I NPUT VOLTAGE ( V)

Figure 3: Typical full load input characteristics at room

temperature.

DS_Q48SK12033_01062011

ELECTRICAL CHARACTERISTICS CURVES

For Negative Remote On/Off Logic

Figure 4: Turn-on transient at zero load current) (20ms/div).

Figure 5: Turn-on transient at full rated load current (20

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

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

2V/div.

For Input Voltage Start up

Figure 6: Turn-on transient at zero load current (20 ms/div).

Top Trace: Vout; 5V/div; Bottom Trace: input voltage: 30V/div.

Figure 7: Turn-on transient at full rated load current (20

ms/div). Top Trace: Vout; 5V/div; Bottom Trace: input voltage:

30V/div.

DS_Q48SK12033_01062011

ELECTRICAL CHARACTERISTICS CURVES

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

current (75%-50% of Io, max; di/dt = 0.1A/µs). Load cap: 10µF,

tantalum capacitor and 1µF ceramic capacitor. Top Trace: Vout;

100mV/div; Bottom Trace: output current: 15A/div, Time:

200us/div

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

current (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: output current: 15A/div, Time:

200us/div

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 33µF electrolytic capacitor (200 mA/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 above.

DS_Q48SK12033_01062011

ELECTRICAL CHARACTERISTICS CURVES

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.

OUTPUT CURRENT ( A)

Figure 14: Output voltage ripple at nominal input voltage and

rated load current (Io=33A)(20 mV/div, 2us/div)

Load capacitance: 1µF ceramic capacitor and 10µF tantalum

capacitor. Bandwidth: 20 MHz.

Figure 15: Output voltage vs. load current showing typical

current limit curves and converter shutdown points.

DS_Q48SK12033_01062011

The input source must be insulated from the ac

mains by reinforced or double insulation.

DESIGN CONSIDERATIONS

Input Source Impedance

The input terminals of the module are not operator

accessible.

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 10µF to 100µF electrolytic

capacitor (ESR < 0.7 Ω at 100 kHz) mounted close to

the input of the module to improve the stability.

If the metal baseplate is grounded, the output must

be also 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.

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 40A 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.

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., UL60950-1,

CAN/CSA-C22.2, No. 60950-1 and EN60950-1+A11 and

IEC60950-1, if the system in which the power module is

to be used must meet safety agency requirements.

Soldering and Cleaning Considerations

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.

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_Q48SK12033_01062011

FEATURES DESCRIPTIONS

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 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.

Figure 16: Remote on/off implementation

Over-Voltage Protection

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 protection circuit will

constrain the max duty cycle to limit the output voltage, if

the output voltage continuously increases the modules

will shut down, and then restart after a hiccup-time

(hiccup mode).

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 restart after

the temperature is within specification.

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.

DS_Q48SK12033_01062011

THERMAL CONSIDERATIONS

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.

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’’).

PWB

MODULE

FACING PWB

AIR VELOCITY

AND AMBIENT

TEMPERATURE

MEASURED BELOW

THE MODULE

50.8 (2.0”)

12.7 (0.5”)

AIR FLOW

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

Figure 17: Wind tunnel test setup

Thermal Derating

Heat can be removed by increasing airflow over the

module. 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.

DS_Q48SK12033_01062011

THERMAL CURVES

(WITHOUT HEAT SPREADER)

(WITH HEAT SPREADER)

Figure 18: Temperature measurement location

Figure 20: Temperature measurement location

* The allowed maximum hot spot temperature is defined at 117℃ * The allowed maximum hot spot temperature is defined at 108℃

Q48SK12033(Standard) Output Current vs. Ambient Temperature and Air Velocity

@Vin = 48V (Transverse Orientation)

Q48SK12033(Standard) Output Current vs. Ambient Temperature and Air Velocity

@Vin = 48V (Transverse Orientation, With Heatspreader)

Output Current(A)

600LFM

500LFM

Natural

Convection

Natural

100LFM

200LFM

Convection

100LFM

200LFM

300LFM

400LFM

500LFM

400LFM

Ambient Temperature (℃)

Figure 19: Output current vs. ambient temperature and air

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

spreader)

Figure 21: Output current vs. ambient temperature and air velocity

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

DS_Q48SK12033_01062011

MECHANICAL DRAWING (WITH HEAT SPREADER)

* For modules with through-hole pins and the optional heatspreader, they are intended for wave soldering assembly

onto system boards; please do not subject such modules through reflow temperature profile.

DS_Q48SK12033_01062011

MECHANICAL DRAWING (WITHOUT HEAT SPREADER)

Pin No.

Name

Function

+Vin

Positive input voltage

ON/OFF

Case

-Vin

Remote ON/OFF

Optional

Negative input voltage

Negative output voltage

Positive output voltage

-Vout

+Vout

Pin Specification:

Pins 1-4

1.00mm (0.040”) diameter

1.50mm (0.059”) diameter

Pins 5 &6

All pins are copper with Tin plating.

DS_Q48SK12033_01062011

PART NUMBERING SYSTEM

120

Number of Product Output

Outputs Series

Form

Factor

Input

Output

ON/OFF

Logic

Option Code

Voltage

Voltage Current

Length

F - RoHS 6/6

(Lead Free)

Q - Quarter 48-36V~75V S - Single

Brick

K- QB high 120 - 12V 33 - 33A

N - Negative K - 0.110”

A - Std. Functions

without case pin

power

series

P - Positive

N - 0.146”

R - 0.170”

Space - RoHS5/6

H - with heat spreader

and case pin

N - with heat spreader

and without case pin

MODEL LIST

MODEL NAME

Q48SK12033NRFA

Q48SK12033NRFH

Q48SK12033NNFH

INPUT

OUTPUT

EFF @ 100% LOAD

13A

36V~75V

12V

33A

95.5%

12V

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

* For modules with through-hole pins and the optional heatspreader, they are intended for wave soldering assembly

onto system boards; please do not subject such modules through reflow temperature profile.

CONTACT: www.delta.com.tw/dcdc

USA:

Telephone:

Europe:

Asia & the rest of world:

Telephone: +886 3 4526107

ext 6220~6224

Phone: +41 31 998 53 11

Fax: +41 31 998 53 53

Email: DCDC@delta-es.com

East Coast: (888) 335 8201

West Coast: (888) 335 8208

Fax: (978) 656 3964

Email: DCDC@delta-corp.com

Fax: +886 3 4513485

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_Q48SK12033_01062011

Q48SK12033 [DELTA]

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