E48SR12006PMFA [DELTA]

Delphi Series E48SR12006, 72W Eighth Brick DC/DC Power Modules: 48V in, 12V/6A out; 德尔福系列E48SR12006 ， 72W 1/8砖DC / DC电源模块：， 12V / 6A出48V


型号：	E48SR12006PMFA
厂家：	DELTA ELECTRONICS, INC.
描述：	Delphi Series E48SR12006, 72W Eighth Brick DC/DC Power Modules: 48V in, 12V/6A out 德尔福系列E48SR12006 ， 72W 1/8砖DC / DC电源模块：， 12V / 6A出48V 电源电路
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中文：	中文翻译
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FEATURES

ꢀ

High efficiency: 92.5% @ 12V/6A

ꢀ

Size: 58.4mmx22.80mmx8.35mm

(2.30”x0.90”x0.33”)

ꢀ

Standard footprint

Industry standard pin out

2:1 Input voltage range

Fixed frequency operation

Input UVLO, Output OCP, OVP, OTP

2250V isolation and basic insulation

No minimum load required

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 directive

Delphi Series E48SR12006, 72W Eighth Brick

DC/DC Power Modules: 48V in, 12V/6A out

OPTIONS

The Delphi Series E48SR12006 Eighth Brick, 48V input, single output,

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

power systems technology and manufacturing ― Delta Electronics,

Inc. This product provides 72 watts of power with 92.5% efficiency in

an industry standard footprint. With creative design technology and

optimization of component placement, this converter possesses

outstanding electrical and thermal performances, as well as extremely

high reliability under highly stressful operating conditions. All Delphi

E48SR models are fully protected from abnormal input/output voltage,

current, temperature conditions and also meet all safety requirements

with basic insulation.

ꢀ

Positive On/Off logic

Short pin lengths

SMD pin

APPLICATIONS

ꢀ

Telecom/Datacom

Wireless Networks

Optical Network Equipment

Server and Data Storage

Industrial/Test Equipment

DATASHEET

DS_E48SR12006_03022007

TECHNICAL SPECIFICATIONS

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

PARAMETER

NOTES and CONDITIONS

E48SR12006 (Standard)

Min.

Typ.

Max.

Units

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous

Transient (100ms)

Operating Temperature

Storage Temperature

Input/Output Isolation Voltage

INPUT CHARACTERISTICS

Operating Input Voltage

100

115

125

2250

Vdc

°C

Vdc

100ms

Refer to Figure 19 for measuring point

-40

-55

Vdc

Input Under-Voltage Lockout

Turn-On Voltage Threshold

Turn-Off Voltage Threshold

Lockout Hysteresis Voltage

Maximum Input Current

3.0

100

Vdc

A²s

100% Load, 36Vin

No-Load Input Current

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°C

11.880

11.76

12.000

12.120

Vdc

Io=Io,min to Io,max

Vin=36V to 75V

Tc=-40°C to 85°C

±10

±100

±15

Vdc

Over sample load, line and temperature

5Hz to 20MHz bandwidth

Full Load, 1µF ceramic, 10µF tantalum

12.24

120

RMS

Operating Output Current Range

Output Over Current Protection

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

7.7

9.8

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

50% Io.max to 75% Io.max

200

360

75% Io.max to 50% Io.max

Start-Up Time, From On/Off Control

Start-Up Time, From Input

Maximum Output Capacitance

EFFICIENCY

2000

µF

Full load; 5% overshoot of Vout at startup

100% Load

60% Load

92.5

92.0

ISOLATION CHARACTERISTICS

Input to Output

Isolation Resistance

2250

Vdc

MΩ

100

1500

Isolation Capacitance

FEATURE CHARACTERISTICS

Switching Frequency

350

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

2.4

0.7

2.4

0.7

Ion/off at Von/off=0.0V

Logic High

Pout ≦ max rated power

-10

Pout ≦ max rated power

Over full temp range;

Output Voltage Remote Sense Range

Output Over-Voltage Protection

GENERAL SPECIFICATIONS

MTBF

140%

115%

120%

Io=93% of Io, max; Ta=25°C, airflow rate=300FLM

3.32

19.6

120

M hours

Grams

°C

Weight

Over-Temperature Shutdown

Refer to Figure 19 for measuring point

E48SR12006_03022007

ELECTRICAL CHARACTERISTICS CURVES

75Vin

36Vin

48Vin

36Vin

48Vin

75Vin

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

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

maximum input voltage at 25°C, 300LFM airflow.

and maximum input voltage at 25°C, 300LFM airflow.

For Negative Remote On/Off Logic

Figure 3: Turn-on transient at 6A load current (resistor load)

(2ms/div). Vin=48V. Top Trace: Vout, 5V/div; Bottom Trace:

ON/OFF input, 5V/div

Figure 4: Turn-on transient at zero load current (2ms/div).

Vin=48V. Top Trace: Vout, 5V/div; Bottom Trace: ON/OFF input,

5V/div

E48SR12006_03022007

ELECTRICAL CHARACTERISTICS CURVES

Figure 5: Output voltage response to step-change in load

current (75-50% Iomax; di/dt = 1A/µs). Load cap: 10µF

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

(0.2V/div, 200us/div), Bottom Trace: Iout (1A/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 6: Output voltage response to step-change in load current

(50-75% Iomax; di/dt = 1A/µs). Load cap: 10µF tantalum capacitor

and 1µF ceramic capacitor. Top Trace: Vout (0.2V/div, 200us/div),

Bottom Trace: Iout (1A/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: Test set-up diagram showing measurement points

for Input Terminal Ripple Current and Input Reflected Ripple

Current.

Figure 8: Input Terminal Ripple Current, i_c, at 6A output current

and nominal input voltage with 12µH source impedance and 33µF

electrolytic capacitor (100 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. Measured current as shown

below

E48SR12006_03022007

ELECTRICAL CHARACTERISTICS CURVES

Copper Strip

Vo(+)

Vo(-)

SCOPE

RESISTIVE

LOAD

10u

Figure 9: Input reflected ripple current, i_s, through a 12µH source

inductor at nominal input voltage and 6A load current (20 mA/div,

2us/div)

Figure 10: Output voltage noise and ripple measurement test

setup

48V

LOAD CURRENT (A)

Figure 11: Output voltage ripple at nominal input voltage and

rated load current (Io=6A)(50 mV/div, 2us/div)

Figure 12: Output voltage vs. load current showing typical current

limit curves and converter shutdown points

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.

E48SR12006_03022007

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 10µF 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

Layout and EMC Considerations

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

to 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

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.

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 10A 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

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

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:

and/or

drying

are

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.

E48SR12006_03022007

FEATURES DESCRIPTIONS

Vi(+)

Vo(+)

Over-Current Protection

Sense(+)

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).

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 13: 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 (Hiccup mode). The

modules will try to restart after shutdown. If the fault

condition still exists, the module will shut down again. This

restart trial will continue until the fault condition is

corrected.

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

This limit includes any increase in voltage due to

remote sense compensation and output voltage set

point adjustment (trim).

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.

Vi(+) Vo(+)

Sense(+)

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.

Vi(-) Vo(-)

Contact

Resistance

Contact and Distribution

Losses

Remote On/Off

Figure 14: Effective circuit configuration for remote sense

operation

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 logic high. Positive

logic turns the modules on during logic high and off during

logic low.

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.

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.

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 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.

E48SR12006_03022007

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 16: 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. 16). The external resistor value required obtaining a

percentage output voltage change △% is defined as:

Figure 15: Circuit configuration for trim-down (decrease

output voltage)

If the external resistor is connected between the TRIM

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

decreases (Fig. 15). The external resistor value required

to obtain a percentage of output voltage change △% is

defined as:

5.11×Vo × (100 + ∆)

1.225 × ∆

511

Rtrim − up =

−

−10.22

(

KΩ

)

∆

Ex. When Trim-up +10%(12 V×1.1=13.2V)

5.11×12×(100 +10) 511

Rtrim − up =

−

−10.22 = 489.3

(

KΩ

)

1.225×10

511

⎡

⎤

Rtrim − down =

− 10.22

(

KΩ

)

⎢

⎣

⎥

⎦

∆

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.

Ex. When Trim-down -10%(12V×0.9=10.8V)

511

⎡

⎤

Rtrim − down =

− 10.22

(

KΩ

)

= 40.88

(

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.

E48SR12006_03022007

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.

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.

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 18: Hot spot temperature measured point

＊The allowed maximum hot spot temperature is defined at 115℃

E48SR12006(Standard) Output Current vs. Ambient Temperature and Air Velocity

Output Current(A)

@Vin = 48V (Transverse Orientation)

PWB

MODULE

FACING PWB

Natural

Convection

100LFM

200LFM

300LFM

400LFM

AIR VELOCITY

AND AMBIENT

TEMPERATURE

MEASURED BELOW

THE MODULE

50.8 (2.0”)

AIR FLOW

Ambient Temperature (℃)

Figure 19: Output current vs. ambient temperature and air

12.7 (0.5”)

velocity@Vin=48V (Transverse Orientation)

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

Figure 17: Wind tunnel test setup

E48SR12006_03022007

PICK AND PLACE LOCATION

SURFACE-MOUNT TAPE & REEL

RECOMMENDED PAD LAYOUT (SMD)

E48SR12006_03022007

LEADED (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE

Peak temp.

2nd Ramp-up temp.

210~230°C 5sec.

1.0~3.0°C /sec.

250

Pre-heat temp.

140~180°C 60~120 sec.

200

Cooling down rate <3°C /sec.

Ramp-up temp.

0.5~3.0°C /sec.

150

100

Over 200°C

40~50sec.

120

Time ( sec. )

180

240

300

Note: The temperature refers to the pin of E48SR, measured on the pin +Vout joint.

LEAD FREE (SAC) PROCESS RECOMMEND TEMP. PROFILE

Temp

Peak Temp. 240 ~ 245 ℃

217℃

200℃

Ramp down

max. 4℃/sec.

Preheat time

100~140 sec.

150℃

25℃

Time Limited 90 sec.

above 217℃

Ramp up

max. 3℃/sec.

Time

Note: The temperature refers to the pin of E48SR, measured on the pin +Vout joint.

E48SR12006_03022007

MECHANICAL DRAWING

Surface-mount module

Through-hole module

Pin No.

Name

Function

+Vin

ON/OFF

-Vin

-Vout

-SENSE

TRIM

Positive input voltage

Remote ON/OFF

Negative input voltage

Negative output voltage

Negative remote sense

Output voltage trim

+SENSE

+Vout

Positive remote sense

Positive output voltage

E48SR12006_03022007

PART NUMBERING SYSTEM

120

Type of

Product Voltage

Input

Number of Product

Output

Voltage

Output

Current

ON/OFF Pin Length

Logic

Option Code

Outputs

Series

E- Eighth

Brick

48V

S- Single

R- Regular

120-12V

06- 6A

N- Negative

(Default)

R - 0.170”

(Default)

A- Standard

Functions

F- RoHS 6/6

Lead Free)

H - with heat

spreader

P- Positive

N- 0.145”

K- 0.110”

M- SMD pin

MODEL LIST

MODEL NAME

INPUT

OUTPUT

EFF @ 100% LOAD

E48SR1R225NRFA

E48SR1R525NRFA

E48SR1R825NRFA

E48SR2R520NRFA

E48SR3R320NRFA

E48SR05012NRFA

E48SR12005NRFA

E48SR12006NRFA

E48SR12007NRFA

E48SR15004NRFA

36V~75V

1.3A

1.5A

1.8A

1.9A

2.5A

2.1A

2.2A

2.6A

3.0A

2.2A

1.2V

25A

20A

12A

88.0%

89.5%

90.5%

89.0%

90.5%

91.5%

92.0%

92.5%

92.0%

1.5V

1.8V

2.5V

3.3V

5.0V

12V

15V

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 office.

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.

E48SR12006_03022007

E48SR12006PMFA [DELTA]

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