V48SH1R830_技术文档

FEATURES



High efficiency: 89% @ 1.8V/30A



Size: 33.0x22.8x9.5mm

(1.30”x0.90”x0.37”)



Industry standard footprint and pinout

Fixed frequency operation

SMD and through-hole versions

Input UVLO

OTP and output OCP, OVP

Output voltage trim: -20%, +10%

Monotonic startup into normal and

pre-biased loads



1500V 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,

OHSAS18001 certified manufacturing

facility

UL/cUL 60950-1 (US & Canada)

Recognized

Delphi Series V48SH, 1/16^thBrick 100W

DC/DC Power Modules: 48V in, 1.8V, 30A out

The Delphi Series V48SH, 1/16^thBrick, 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 family provides up to 100 watts of power or 40A of

output current (1.8V and below) in an industry standard 1/16^thbrick

form factor (1.30” x 0.90”). The 1.8V output offers one of the highest

output currents available and provides up to 89% efficiency at full load.

With creative design technology and optimization of component

placement, these converters possess outstanding electrical and

thermal performance, as well as extremely high reliability under highly

stressful operating conditions. All modules are protected from

abnormal input/output voltage, current, and temperature conditions.

For lower power needs, but in a similar small form factor, please check

out Delta, V36SE (50W or 15A), S48SP (36W or 10A) and S36SE

(17W or 5A) series standard DC/DC modules.

OPTIONS



SMD pins



Short pin lengths available

Positive remote On/Off

Heat spreader

APPLICATIONS



Optical Transport

Data Networking

Communications

Servers

DATASHEET

DS_V48SH1R830_10282013

TECHNICAL SPECIFICATIONS

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

PARAMETER

NOTES and CONDITIONS

V48SH1R830 (Standard)

Min.

Typ.

Max.

Units

ABSOLUTE MAXIMUM RATINGS

Input Voltage

Continuous

Transient (100ms)

Operating Temperature

Storage Temperature

80

100

120

125

1500

Vdc

°C

Vdc

100ms

Refer to figure 20 for 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

Maximum Input Current

No-Load Input Current

Off Converter Input Current

36

75

Vdc

32.5

30.5

1

34

32

2

35.5

33.5

3

1.8

80

Vdc

A

mA

A²s

100% Load, 36Vin

50

7

12

Inrush Current (I²t)

With 100uF external input capacitor

1

Start up Current

Peak, Vin=36V, 100% Load, With 10000uF Co

2.2

3

A

Input Terminal Ripple Current

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

RMS, Vin=48V, With 100uF input cap.

P-P thru 12µH inductor, 5Hz to 20MHz

120 Hz

0.07

8

45

0.11

15

A

mA

dB

Vin=48V, Io=Io.max, Tc=25°C

1.773

1.746

1.8

1.827

1.854

Vdc

Io=Io, min to Io, max

Vin=36V to 75V

Tc=-40°C to125°C

±5

±18

mV

V

Over sample load, line and temperature

5Hz to 20MHz bandwidth

Full Load, 1µF ceramic, 10µF tantalum

70

25

120

50

30

mV

A

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

0

110

Output Voltage 10% Low

140

%

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

50% Io.max to 75% Io.max

50

150

100

300

mV

us

75% Io.max to 50% Io.max

Start-Up Time, From On/Off Control

Start-Up Time, From Input

12

28

ms

Cap ESR>=3mohm;

Full load; 5% overshoot of Vout at startup;

Maximum Output Capacitance

0

10000

µF

EFFICIENCY

100% Load

60% Load

Vin=48V

87.5

89

%

ISOLATION CHARACTERISTICS

Input to Output

Isolation Resistance

Isolation Capacitance

FEATURE CHARACTERISTICS

Switching Frequency

1500

Vdc

MΩ

pF

10

1500

300

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)

Von/off

-0.7

2

0.8

15

V

Von/off

-0.7

2

0.8

15

V

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

Ion/off at Von/off=0.0V

0.3

mA

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

Leakage Current (for both remote on/off logic)

Output Voltage Trim Range

Ion/off at Von/off=2V

Logic High, Von/off=15V

Max rated current guaranteed at full trim range

Max rated current guaranteed at full remote

sense range

10

uA

%

50

10

-20

Output Voltage Remote Sense Range

10

%

Output Over-Voltage Protection

Over full temp range; % of nominal Vout

130

GENERAL SPECIFICATIONS

Per Telecordia SR-332, 100% load, 40°C, 48Vin,

MTBF

1.9

7.3

M hours

400LFM

Per Telecordia SR-332, 50% load, 25°C, 48Vin,

400LFM

Weight

Open frame

Refer to figure 20 for measuring point

14.2

130

grams

°C

Over-Temperature Shutdown

DS_V48SH1R830_10282013

2

ELECTRICAL CHARACTERISTICS CURVES

11

91

88

85

82

79

76

73

70

75Vin

36Vin

10

9

8

48Vin

36Vin

48Vin

7

6

5

4

75Vin

3

2

8

16

24

32

40

8

16

24

32

40

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.

2.5

2.3

2.1

1.9

1.7

1.5

1.3

1.1

0.9

0.7

0.5

30

35

40

45

50

55

60

65

70

75

INPUT VOLTAGE(V)

Figure 3: Typical full load input characteristics at room

temperature

DS_V48SH1R830_10282013

3

ELECTRICAL CHARACTERISTICS CURVES

For Negative Remote On/Off Start up

0

Figure 4: Turn-on transient at full rated load current (10

ms/div). Vin=48V. Top Trace: Vout, 1.0V/div; Bottom Trace:

ON/OFF input, 5V/div

Figure 5: Turn-on transient at zero load current (10 ms/div).

Vin=48V. Top Trace: Vout: 1.0V/div, Bottom Trace: ON/OFF

input, 5V/div

For Input Voltage Start up

0

Figure 6: Turn-on transient at full rated load current (10

ms/div). Vin=48V. Top Trace: Vout, 1.0V/div; Bottom Trace: Vin,

20V/div

Figure 7: Turn-on transient at zero load current (10 ms/div).

Vin=48V. Top Trace: Vout, 1.0V/div; Bottom Trace: Vin, 20V/div

0

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

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

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

Vout (50mV/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 (75%-50%-75% of Io, max; di/dt = 1.0A/µs). Load cap:

220µF tantalum capacitor and 1µF ceramic capacitor. Top

Trace: Vout (100mV/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

DS_V48SH1R830_10282013

4

ELECTRICAL CHARACTERISTICS CURVES

is

ic

Vin+

Vin-

+

0

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 33µF electrolytic capacitor (200 mA/div, 1us/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

Copper Strip

Vo(+)

SCOPE

RESISTIVE

LOAD

0

10u

1u

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, 1us/div)

Figure 13: Output voltage noise and ripple measurement test

setup

0

Figure 14: Output voltage ripple at nominal input voltage and

rated load current (Io=40A)(50 mV/div, 1us/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_V48SH1R830_10282013

5

DESIGN CONSIDERATIONS



The input source must be insulated from the ac

mains by reinforced or double insulation.

Input Source Impedance

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.

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.

Layout and EMC Considerations

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.

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

The power module has extra-low voltage (ELV) outputs

when all inputs are ELV.

compliance design.

Application notes to assist

designers in addressing these issues are pending

release.

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

Fast-acting fuse with 30A 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, 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.

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.

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:

DS_V48SH1R830_10282013

6

FEATURES DESCRIPTIONS

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.

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 hiccup mode or latch

mode, which is optional.

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.

For hiccup mode, the module will try to restart after

shutdown. If the over current condition still exists, the

module will shut down again. This restart trial will continue

until the over-current condition is corrected.

Vi(+)

Vo(+)

Sense(+)

ON/OFF

Vi(-)

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.

Sense(-)

Vo(-)

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 module will shut down, and enter in hiccup

mode or latch mode, which is optional.

Figure 15: Remote on/off implementation

Remote Sense

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:

For hiccup mode, the module will try to restart after

shutdown. If the over voltage condition still exists, the

module will shut down again. This restart trial will continue

until the over-voltage condition is corrected.

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

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.

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, and enter in auto-restart mode or

latch mode, which is optional.

Vi(+) Vo(+)

Sense(+)

Sense(-)

For auto-restart mode, the module will monitor the module

temperature after shutdown. Once the temperature is

dropped and within the specification, the module will be

auto-restart.

Vi(-)

Vo(-)

Contact

Resistance

Contact and Distribution

Losses

Figure 16: Effective circuit configuration for remote sense

operation

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.

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

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.

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.

DS_V48SH1R830_10282013

7

FEATURES DESCRIPTIONS (CON.)

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.

Max rated current is guaranteed at full output voltage

remote sense range.

Output Voltage Adjustment (TRIM)

To increase or decrease the output voltage set point,

connect 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 18: 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. 19). The external resistor value required to obtain

a percentage output voltage change △% is defined

as:

5.11Vo (100   ) 511

Rtrim  up 



10.2



K



1.225



Ex. When Trim-up +10% (1.8V×1.1=1.98V)

Figure 17: Circuit configuration for trim-down (decrease

output voltage)

5.111.8(10010) 511

Rtrim up 



10.2  21.3



K



1.22510

10

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:

Trim resistor can also be connected to Vo+ or Vo- but it

would introduce a small error voltage than the desired

value.

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.

511





Rtrim down 

10.2



K













Ex. When Trim-down -10% (1.8V×0.9=1.62V)

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.

511

10













Rtrim  down 

10.2



K



 40.9



K



Max rated current is guaranteed at full output voltage

trim range.

DS_V48SH1R830_10282013

8

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 20: Temperature measurement location

The allowed maximum hot spot temperature is defined at 120℃.

V48SH1R8(Standard) Output Current vs. Ambient Temperature and Air Velocity

Output Current (A)

@Vin = 48V (Either Orientation)

40

35

Natural

PWB

FACING PWB

Convection

30

100LFM

MODULE

25

200LFM

300LFM

400LFM

20

15

AIR VELOCITY

500LFM

10

AND AMBIENT

TEMPERATURE

MEASURED BELOW

THE MODULE

600LFM

5

50.8 (2.0”)

0

AIR FLOW

25

30

35

40

45

50

55

60

65

70

75

80

85

Ambient Temperature (℃)

Figure 21: Output Current vs. Ambient Temperature and Air

Velocity @ Vin=48V (Either Orientation)

12.7 (0.5”)

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

Figure 19: Wind tunnel test setup

DS_V48SH1R830_10282013

9

PICK AND PLACE LOCATION

RECOMMENDED PAD LAYOUT (SMD)

SURFACE-MOUNT TAPE & REEL

DS_V48SH1R830_10282013

10

LEADED (Sn/Pb) PROCESS RECOMMEND TEMP. PROFILE

Note: The temperature refers to the pin of V48SH, 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 V48SH, measured on the pin +Vout joint.

DS_V48SH1R830_10282013

11

MECHANICAL DRAWING

Surface-mount module

Through-hole module

Pin No.

Name

Function

1

2

3

4

5

6

7

8

+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

DS_V48SH1R830_10282013

12

PART NUMBERING SYSTEM

V

48

S

H

1R8

30

N

R

F

A

Type of

Product Voltage Outputs

Input Number of Product

Output

Voltage

Output

Current

ON/OFF

Logic

Length/Type

Option Code

Series

V - 1/16

Brick

48-

36V~75V

S - Single

H - High

Power

1R8 - 1.8V 30 - 30A

N- Negative

P- Positive

R - 0.170”

N - 0.145”

A - Standard Functions

H - with Heatspreader

F- RoHS 6/6

(Lead Free)

MODEL LIST

MODEL NAME

INPUT

OUTPUT

EFF @ 100% LOAD

V48SH1R840NNFA

V48SH1R830NNFA

36V~75V

3A

1.8V

40A

30A

88.5%

89%

2.5A

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:

Telephone:

East Coast: 978-656-3993

West Coast: 510-668-5100

Fax: (978) 656 3964

Email: DCDC@delta-corp.com

Asia & the rest of world:

Telephone: +886 3 4526107

Ext 6220~6224

Fax: +886 3 4513485

Email: DCDC@delta.com.tw

Europe:

Phone: +31-20-655-0967

Fax: +31-20-655-0999

Email: DCDC@delta-es.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.

DS_V48SH1R830_10282013

13


型号：	V48SH1R830
厂家：	DELTA ELECTRONICS, INC.
描述：	Delphi Series V48SH, 1/16th Brick 100W DC/DC Power Modules
文件：	总13页 (文件大小：743K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

V48SH1R830 [DELTA]

相关型号：

V48SH1R830NNFA

V48SH1R840NNFA

V48SH1R840NNFA_13

V48SH1R840NNFH

V48SH1R840NRFA

V48SH1R840NRFH

V48SH1R840PNFA

V48SH1R840PNFH

V48SH1R840PRFA

V48SH1R840PRFH

V48SH3R325NNFA

V48SH3R330NNFA