E48SH1R050NRFA [DELTA]

Delphi Series E48SH, 120W Eighth Brick Family DC/DC Power Modules: 48V in, 1.0V/50A out; 德尔福系列E48SH ， 120W 1/8砖系列DC / DC模块电源： 48V IN， 1.0V / 50A出


型号：	E48SH1R050NRFA
厂家：	DELTA ELECTRONICS, INC.
描述：	Delphi Series E48SH, 120W Eighth Brick Family DC/DC Power Modules: 48V in, 1.0V/50A out 德尔福系列E48SH ， 120W 1/8砖系列DC / DC模块电源： 48V IN， 1.0V / 50A出
文件：	总14页 (文件大小：1035K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

FEATURES



High efficiency: 84.5% @1.0V/50A



Size: 58.4mm x 22.8mm x 9.5mm

(2.30”x0.90”x0.37”)



Industry standard pin out

Fixed frequency operation

Input UVLO, Output OTP, OCP, OVP

Output voltage trim:-20%,+10%

Monotonic startup into normal and

pre-biased loads



Secondary side control, very fast transient

response



2250V Isolation and basic insulation

No minimum load required

No negative current during power or enable

on/off



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

OHSAS 18001 certified manufacturing facility

UL/cUL 60950 (US & Canada) recognized.

Delphi Series E48SH, 120W Eighth Brick Family

DC/DC Power Modules: 48V in, 1.0V/50A out

The Delphi Series E48SH Eighth Brick, 48V input, single output, isolated

DC/DC converters are the latest offering from a world leader in power

systems technology and manufacturing ― Delta Electronics, Inc. This

product family is available in either a through-hole or surface-mounted

package and provides up to 120 watts of power or 50A of output current

(1.0V and below) in an industry standard footprint and pinout. The E48SH

converter operates from an input voltage of 36V to 75V and is available in

output voltages from 1.0V to 15V. Efficiency is up to 84.5% for 1.0V

output at 50A full load. With creative design technology and optimization

of component placement, these converters possess outstanding

OPTIONS



Positive On/Off logic

Short pin lengths available

External Synchronization

Output OVP latch mode

Output OCP latch mode

APPLICATIONS



Telecom/DataCom

Wireless Networks

Optical Network Equipment

Server and Data Storage

Industrial/Test Equipment

DATASHEET

DS_E48SH1R050_11012013

TECHNICAL SPECIFICATIONS

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

PARAMETER

NOTES and CONDITIONS

E48SH1R050

Min.

Typ.

Max.

Units

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous

Transient (100ms)

100

125

2250

Vdc

°C

Vdc

100ms

Operating Hot Spot Temperature

Storage Temperature

Input/Output Isolation Voltage

INPUT CHARACTERISTICS

Operating Input Voltage

Refer to Figure 21 for measuring point

-40

-55

Vdc

Input Under-Voltage Lockout

Turn-On Voltage Threshold

Turn-Off Voltage Threshold

Lockout Hysteresis Voltage

Maximum Input Current

Vdc

100% Load, 36Vin

2.0

No-Load Input Current

A²s

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

0.990

0.980

1.000

1.010

Vdc

Io=Io,min to Io,max

Vin=36V to 75V

Tc=-40°C to 85°C

±3

±15

±10

over sample load, line and temperature

5Hz to 20MHz bandwidth

Full Load, 400µF ceramic

1.020

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

105

Output Voltage 10% Low

135

48V, 2310uF electrolytic load cap, 1A/µs

50% Io.max to 75% Io.max

75% Io.max to 50% Io.max

Start-Up Time, From On/Off Control

Start-Up Time, From Input

Maximum Output Capacitance

EFFICIENCY

µF

Full load; no overshoot of Vout at startup

40000

100% Load

60% Load

84.5

86.5

ISOLATION CHARACTERISTICS

Input to Output

Isolation Resistance

Isolation Capacitance

FEATURE CHARACTERISTICS

Switching Frequency

2250

Vdc

MΩ

1000

240

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

-0.7

2.4

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

Ion/off at Von/off=0.0V

-0.7

2.4

0.8

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

Logic High, Von/off=15V

Across Pins 9 & 5, Pout ≦ max rated power

-20

Pout ≦ max rated power

Over full temp range; % of nominal Vout

Output Voltage Remote Sense Range

Output Over-Voltage Protection

GENERAL SPECIFICATIONS

MTBF

150

130

Io=80% of Io, max; 300LFM @25℃

4.66

130

M hours

grams

°C

Weight

Over-Temperature Shutdown

Refer to Figure 21 for measuring point

E48SH1R050_11012013

ELECTRICAL CHARACTERISTICS CURVES

15.0

14.0

13.0

12.0

11.0

10.0

9.0

75Vin

48Vin

8.0

36Vin

7.0

6.0

36Vin

75Vin

5.0

4.0

3.0

2.0

1.0

0.0

10 15

25 30

40 45

OUTPUT CURRENT(%)

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

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 full load input characteristics at room

temperature

E48SH1R050_11012013

ELECTRICAL CHARACTERISTICS CURVES

For Negative Remote On/Off Logic

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

Vin=48V.Top Trace: Vout, 0.5V/div; Bottom Trace: ON/OFF

input, 5V/div

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

current load) (5ms/div). Vin=48V.Top Trace: Vout, 0.5V/div;

Bottom Trace: ON/OFF input, 5V/div

For Input Voltage Start up

Figure 6: Turn-on transient at zero load current (5 ms/div).

Vin=48V.Top Trace: Vout, 0.5V/div, Bottom Trace: input voltage,

20V/div

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

current load) (5 ms/div). Vin=48V. Top Trace: Vout, 0.5V/div;

Bottom Trace: input voltage,20V/div

E48SH1R050_11012013

ELECTRICAL CHARACTERISTICS CURVES

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

current (75%-50% of Io, max; di/dt = 1A/µs). Load cap: 2310uF

electrolytic capacitor. Top Trace: Vout (20mV/div, 100us/div),

Bottom Trace: Io (20A/div, 100us/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% of Io, max; di/dt = 1A/µs). Load cap: 2310uF

electrolytic capacitor. Top Trace: Vout (20mV/div, 100us/div),

Bottom Trace: Io (20A/div, 100us/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 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

E48SH1R050_11012013

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

1.2

1.0

0.8

0.6

0.4

0.2

0.0

10 15 20 25 30 35 40 45 50 55 60 65 70

LOAD CURRENT(A)

Figure 14: Output voltage ripple at nominal input voltage and

rated load current (Io=50A)(10 mV/div, 2us/div)

Figure 15: Output voltage vs. load current showing typical

current limit curves and converter shutdown points.

Load capacitance: 400µF ceramic 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.

E48SH1R050_11012013

DESIGN CONSIDERATIONS

Safety Considerations

Input Source Impedance

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,

CSA C22.2 NO. 60950-1 2nd and IEC 60950-1 2nd :

2005 and EN 60950-1 2nd: 2006+A11+A1: 2010, 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.

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:

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.

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. Below is the

reference design for an input filter tested with

E48SH1R050XXXX to meet class B in CISSPR 22.



The input source must be insulated from the ac

mains by reinforced or double insulation.

The input terminals of the module are not operator

accessible..

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.

Schematic and Components List

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.

Cin is 33uF*2 low ESR Aluminum cap;

CX is 33uF Aluminum cap;

CY1 and CY2 are 2.2nF ceramic caps;

L1 is common-mode inductor, L1=0.59mH;

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.

Test Result: Vin=48V, Io=50A,

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.

Yellow line is quasi peak mode; Blue line is average mode

E48SH1R050_11012013

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. When the

output current exceeds the OCP set point, the modules

will automatically shut down and enter hiccup mode.

ON/OFF

Sense(-)

Vi(-)

Vo(-)

During hiccup, 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 restart after

200mS. Latch-off mode is optional. Under latch off mode

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 andDistribution

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.

E48SH1R050_11012013

FEATURES DESCRIPTIONS (CON.)

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:

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.

5.11Vo  (100  ) 511

Rtrim  up 



10.22



K



0.6215 



Ex. When Trim-up +10%(1.0V×1.1=1.1V)

5.111.0 (100 10) 511

Rtrim  up 



10.22  30.4



K



0.621510

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.

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.

Figure 18: 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.18). The external resistor value

required to obtain a percentage of output voltage

change △% is defined as:

Care should be taken to ensure that the maximum

output power of the module remains at or below the

maximum rated power.

Frequency Synchronization

511

Rtrim  down 

10.2



K





This product family can be synchronized with external clock

signal to the TRIM pin. This reduces system noise and

interference in multiple converter systems.

Ex. When Trim-down -20 %( 1.0V×0.8=0.8V)

511

Rtrim  down 

10.2 15.4



K



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

voltage)

E48SH1R050_11012013

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.

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: Case temperature measurement location.

Pin locations are for reference only.

＊The allowed maximum hot spot temperature is defined at 125℃

E48SH1R050(Standard) Output Current vs. Ambient Temperature and Air Velocity

Output Current(A)

@Vin = 48V (Transverse Orientation)

Natural

Convection

PWB

MODULE

FACING PWB

100LFM

200LFM

300LFM

400LFM

500LFM

600LFM

AIR VELOCITY

AND AMBIENT

TEMPERATURE

MEASURED BELOW

THE MODULE

50.8 (2.0”)

AIR FLOW

Ambient Temperature (℃)

Figure 22: Output current vs. ambient temperature and air velocity

@V_in= 48V (Transverse Orientation)

12.7 (0.5”)

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

Figure 20: Wind tunnel test setup

E48SH1R050_11012013

PICK AND PLACE LOCATION

SURFACE-MOUNT TAPE & REEL

RECOMMENDED PAD LAYOUT (SMD)

E48SH1R050_11012013

LEADED (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE

Note: The temperature refers to the pin of E48SH, 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 E48SH, measured on the pin +Vout joint.

E48SH1R050_11012013

MECHANICAL DRAWING (WITHOUT HEATSPREADER)

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

Pin Specification:

Pins 1-3,5-7

Pins 4 & 8

1.00mm (0.040”) diameter

1.50mm (0.060”) diameter

All pins are copper with Tin plating.

E48SH1R050_11012013

PART NUMBERING SYSTEM

1R0

Type of

Product

Input

Voltage

Number of Product

Outputs Series

Output

Voltage

Output

Current

ON/OFF

Logic

Length

Option Code

E- Eighth 48-36V~75V S- Single

Brick

H-50A series 1R0 - 1.0V

50 - 50A

N- Negative R- 0.170”

P- Positive N- 0.145”

K- 0.110”

A-Standard Functions

F- RoHS 6/6

(Lead Free)

M- SMD

MODEL LIST

MODEL NAME

E48SH1R050NRFA

INPUT

OUTPUT

EFF @ 100% LOAD

36V~75V

2.0A

1.0V

50A

84.5%

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.deltaww.com/dcdc

USA:

Europe:

Asia & the rest of world:

Telephone:

Telephone: +31-20-655-0967

Fax: +31-20-655-0999

Email: DCDC@delta-es.com

Telephone: +886 3 4526107 x 6220~6224

Fax: +886 3 4513485

Email: DCDC@delta.com.tw

East Coast: 978-656-3993

West Coast: 510-668-5100

Fax: (978) 656 3964

Email: DCDC@delta-corp.com

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.

E48SH1R050_11012013

E48SH1R050NRFA [DELTA]

相关型号：

E48SH1R050PKFA

E48SH1R050PMFA

E48SH1R050PNFA

E48SH1R050PRFA

E48SH1R250

E48SH1R250NKFA

E48SH1R250NKFB

E48SH1R250NKFH

E48SH1R250NMFA

E48SH1R250NMFB

E48SH1R250NMFH

E48SH1R250NNFA