www.murata-ps.com

Typical units

IRS Series

Encapsulated Sixteenth-Brick DOSA-Compatible,

Wide Input Isolated DC-DC Converters

Output Voltage (V)

3.3

5

12

Output Current (A)

15

10

4.5

Input Voltage (V)

18-75

Optimized for harsh environments in industrial/railway applications, the IRS DC-DC converter

series offer regulated outputs in an industry-standard sixteen-brick fully encased package.

FEATURES

efficiency synchronous flyback topology

High

18-75 Volts DC wide input range with 3.3, 5 and

12 Volts for Output voltage

to 54 Watts total output power with over-

Up

temperature shutdown

1.44" x 1.04" x 0.50" baseplate package

Tiny

Industry standard DOSA "brick" format and pinout

Extensive self-protection shut down features

Small footprint DC-DC converter, ideal for high

current applications

Volt Basic input/output isolation

2250

Operating temperature range -40 to +85°C with

derating

Stable no-load operation with no required exter-

nal components

Certified to UL 60950-1, 2nd Edition, EN60950-1

safety approvals

PRODUCT OVERVIEW

The world of “brick” DC-DC converters has seen a

steady size reduction. The IRS series makes an-

other dramatic size shrink down to a “sixteenth-

brick” width (0.90 inches) while still retaining a

high power output and full 2250 Volt DC isolation.

The converter family accepts 18 to 75 Volts DC

inputs and delivers fixed outputs regulated to

within ±0.125%. The IRS converters are ideal for

industrial and railway applications, datacom and

telecom applications, cell phone towers, data

centers, server farms and network repeaters.

IRS outputs may be trimmed while delivering

fast settling to current step loads and no adverse

effects from higher capacitive loads. Excellent

ripple and noise specifications assure compatibility

to circuits using CPU’s, ASIC’s, programmable logic

and FPGA’s. No minimum load is required. For

systems requiring controlled startup/shutdown,

an external remote On/Off control may use a switch,

transistor or digital logic.

Many self-protection features on the IRS series

avoid both converter and external circuit hazards.

These include input undervoltage lockout and

overtemperature shutdown. The output of these

DC-DC converters have current limit using the

“hiccup” autorestart technique and the outputs

may be short-circuited indefinitely. Additional

features include output overvoltage and reverse

conduction elimination.

The synchronous flyback topology yields high

efficiency for minimal heat buildup and “no fan”

operation.

Standard Baseplate Option

Flanged Baseplate Option

SAFETY FEATURES

insulation

Basic

2250Vdc input to output isolation

60950-1, 2

nd

Edition

UL

CAN/CSA-C22.2 NO. 60950-1

60950-1

EN

compliant

RoHS

For full details go to

www.murata-ps.com/rohs

www.murata-ps.com/support

SDC_IRS Series.A01.D06

Page 1 of 26

IRS Series

Encapsulated Sixteenth-Brick DOSA-Compatible,

Wide Input Isolated DC-DC Converters

PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE



Output

Root Model

➀

IRS-3.3/15-Q48

IRS-5/10-Q48

IRS-12/4.5-Q48

V

out

I

out

Power

(V) (A, max.) (W)

3.3

5

12

15

➃

10

➄

4.5

➅

49.5

50

54

R/N (mV pk-pk)

Typ.

90

115

Max.

125

130

150

Regulation (max.)

➂

Line

±0.15%

±0.125%

Load

±0.3%

±0.125%

V

in

Nom.

(V)

48

Range

(V)

18-75

Input

I

in

, no load

(mA)

25

30

25

I

in

, full

load (A)

1.16

1.14

1.24

Efficiency

Min.

87.5%

88%

89%

Typ.

89%

91%

Package

Case (inches)

1.44 x 1.04 x 0.50

➀

Please refer to the Part Number Structure when ordering.

➁

All specifications are at nominal line voltage and full load, +25°C unless otherwise

noted. See detailed specifications. Output capacitors are 1 μF ceramic multilayer in

parallel with 10 μF.

I/O caps are necessary for our test equipment and may not be needed for your

application.

➂

Regulation specifications describe output voltage deviations from a nominal/midpoint

value to either extreme (50% load step).

➃

Iout = 13A max. if Vin < 36V.

➄

Iout=8A max. if Vin <36V.

➅

Iout = 3.5A max. if Vin < 36V.

PART NUMBER STRUCTURE

IR S

-

12

/

4.5

-

Q48 N F

-

C

Industrial-Railway

RoHS-6 Compliant

S = Sixteenth Brick

Baseplate

Blank = Standard Baseplate

F = Flanged Baseplate

See Mechanical Drawings for details

On/Off Control Logic:

N = Negative

P = Positive

Input Voltage Range:

Q48 = 18–75 Volts (48V nominal)

Nominal Output Voltage:

Voltage in Volts (V)

Maximum Rated Output Current

Current in Amps (A )

*Sense is included on the IRS-3.3/15-Q48 and IRS-5/10-Q48.

Examples:

IRS-3.3/15-Q48NF-C stands for Industrial Railway 1/16 Brick, 3.3Vout@15A, 18V-75Vin, Negative Logic, Flanged Baseplate, RoHS-6 Compliant.

IRS-12/4.5-Q48P-C stands for Industrial Railway 1/16 Brick, 12Vout@4.5A, 18V-75Vin, Positive Logic, Standard Baseplate, RoHS-6 Compliant.

➀

Special quantity order is required.

➁

Some model number combinations may not be available. See website or contact your local Murata sales representative.

www.murata-ps.com/support

SDC_IRS Series.A01.D06

Page 2 of 26

IRS Series

Encapsulated Sixteenth-Brick DOSA-Compatible,

Wide Input Isolated DC-DC Converters

FUNCTIONAL SPECIFICATIONS, IRS-3.3/15-Q48

ABSOLUTE MAXIMUM RATINGS

Input Voltage, Continuous

Input Voltage, Transient

Conditions [1]

Full temperature range

Operating or non-operating, 100 mS max.

duration

Input to output tested

None, install external fuse

Power on or off, referred to -Vin

Minimum

0

Typical/Nominal

Maximum

75

100

Units

Vdc

Isolation Voltage

2250

Vdc

Input Reverse Polarity

None

Vdc

On/Off Remote Control

0

15

Vdc

Output Power

0

49.5

50

W

Output Current

Current-limited, no damage, short-circuit protected

0

15

A

Storage Temperature Range

Vin = Zero (no power)

-55

125

°C

Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those

listed in the Performance/Functional Specifications Table is not implied or recommended.

INPUT

Operating voltage range

18

48

75

Vdc

Recommended External Fuse

Fast blow

7

A

Start-up threshold

Rising input voltage

16

17

17.9

Vdc

Undervoltage lockout [9]

Falling input voltage

15

16.25

17.50

Vdc

Overvoltage shutdown

Rising input voltage

None

Vdc

Reverse Polarity Protection [11]

None, install external fuse

None

Vdc

Internal Filter Type

LC

Input current

Full Load Conditions

Vin = nominal

1.16

1.19

A

Low Line

Vin = minimum, 13A load

2.63

2.72

A

Inrush Transient

0.4

A2-Sec.

Output in Short Circuit

100

200

mA

No Load Input current

Iout = minimum, unit=ON

25

60

mA

Shut-Down mode Input Current (Off, UV, OT)

5

10

mA

Reflected (back) ripple current [2]

Measured at input with specified filter

15

30

mA, pk-pk

Pre-biased startup

External output voltage < Vset

Monotonic

GENERAL and SAFETY

Vin=48V, full load

87.5

89

%

Efficiency

Vin=24V, full load

88.5

90.5

%

Isolation

Isolation Voltage, Input to Output

2250

Vdc

Isolation Voltage, Input to Baseplate

1500

Vdc

Isolation Voltage, Baseplate to Output

1500

Vdc

Insulation Safety Rating

Basic

Isolation Resistance

100

MΩ

Isolation Capacitance

1300

pF

Certified to UL-60950-1, IEC/EN60950-1, 2nd

Safety

Yes

Edition

Belcore, Telcordia SR-332, Method 1, Class 3,

Calculated MTBF [3]

3.0

Hours x 10

6

ground fixed, Tcase=25°C

DYNAMIC CHARACTERISTICS

Fixed Switching Frequency

250

280

310

KHz

Power Up Startup Time

Power On to Vout regulated

30

mS

On/Off Startup Time

Remote ON to Vout regulated

30

mS

50-75-50% load step, settling time to within

Dynamic Load Response

100

200

µSec

1% of Vout

Dynamic Load Peak Deviation

Same as above,

±180

±240

mV

FEATURES and OPTIONS

Remote On/Off Control [4]

"N" suffix

Negative Logic, ON state

ON=Pin grounded or external voltage

-0.1

0.8

Vdc

Negative Logic, OFF state

OFF=Pin open or external voltage

2.5

15

Vdc

Control Current

Open collector/drain, sourcing

1

2

mA

"P" suffix

Positive Logic, ON state

ON=Pin open or external voltage

10

15

Vdc

www.murata-ps.com/support

SDC_IRS Series.A01.D06

Page 3 of 26

IRS Series

Encapsulated Sixteenth-Brick DOSA-Compatible,

Wide Input Isolated DC-DC Converters

FUNCTIONAL SPECIFICATIONS, IRS-3.3/15-Q48 (CONT.)

Positive Logic, OFF state

Control Current

OUTPUT

Total Output Power

Voltage

Nominal Output Voltage

Setting Accuracy

Output Voltage Range [6]

Overvoltage Protection [8]

Current

Output Current Range

Minimum Load

Current Limit Inception

Short Circuit

Short Circuit Current

Short Circuit Duration

(remove short for recovery)

Short circuit protection method

Regulation [5]

Line Regulation

Load Regulation

Ripple and Noise [7][10]

Temperature Coefficient

Remote Sense Compensation [12]

Maximum Capacitive Load

MECHANICAL

Outline Dimensions

(Please refer to outline drawing)

Outline Dimensions

(Please refer to outline drawing)

Weight

Through Hole Pin Diameter

Through Hole Pin Material

EMI/RFI Shielding

ENVIRONMENTAL

Operating Ambient Temperature Range

Operating Case Temperature Range

Storage Temperature

Thermal Protection/Shutdown

Electromagnetic Interference

Conducted, EN55022/CISPR22

RoHS rating [4]

OFF=Ground pin or external voltage

Open collector/drain

Conditions [1]

See Derating

No trim

At 50% load

User-adjustable

Via magnetic feedback

Vin=18V-36V

Vin=36V-75V

98% of Vnom., after warmup

Hiccup technique, autorecovery within 1.25%

of Vout

Output shorted to ground, no damage

Current limiting

Vin=min. to max., Vout=nom., full load

Iout=min. to max., Vin=48V

With a 1uF || 10uF output caps

With a 1uF || 100uF output caps

At all outputs

Sense connected at load

Constant resistance mode , low ESR

Standard Basplate

LxWxH

Flanged Basplate

LxWxH

±0.15

±0.3

125

%

mV pk-pk

% of Vnom./°C

% of Vout

μF

Inches

mm

Inches

mm

Ounces

Grams

Inches

mm

0

Minimum

0.0

3.267

-10

4

0.0

18.4

No minimum load

21.9

0.6

Continuous

1

Typical/Nominal

49.5

3.3

1

4.3

0.7

2

Maximum

50

3.333

10

4.9

13.0

15.0

25.4

Vdc

mA

Units

W

Vdc

% of Vnom.

Vdc

A

90

60

0.02

0

10,000

1.44 x 1.04 x 0.5

36.47 x 26.31 x 12.7

1.44 x 1.5 x 0.5

36.47 x 38.1 x 12.7

0.58

16.4

0.06 & 0.04

1.524 & 1.016

Copper alloy

None

-40

-55

115

10

See derating, full power, natural convection

No derating, full power, natural convection

Vin = Zero (no power)

Measured in center

External filter is required

125

B

RoHS-6

85

105

125

130

°C

Class

www.murata-ps.com/support

SDC_IRS Series.A01.D06

Page 4 of 26

IRS Series

Encapsulated Sixteenth-Brick DOSA-Compatible,

Wide Input Isolated DC-DC Converters

TYPICAL PERFORMANCE DATA, IRS-3.3/15-Q48

Efficiency vs. Line Voltage and Load Current @ 25°C

92

91

90

89

88

87

86

85

84

83

82

81

80

79

78

77

76

75

0.8

6.5

6.0

5.5

5.0

Power Dissipation vs. Load Current @ 25°C

Vin = 75V

Vin = 36V

Vin = 24V

Vin = 18V

Power Dissipation (W)

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

Vin = 75V

Vin = 48V

Vin = 24V

Vin = 18V

0.8

1.8

2.8

3.8

4.8

5.9

6.9

7.9

8.9

Load Current (A)

9.9

10.9

12.0

13.0

14.0

15.0

Efﬁciency (%)

1.8

2.8

3.8

4.8

5.9

6.9

7.9

8.9

Load Current (A)

9.9

10.9

12.0

13.0

14.0

15.0

0.5

Maximum Current Temperature Derating at Sea Level

(V

in

= 24V, airflow is from vin- to vin+)

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

40

Maximum Current Temperature Derating at Sea Level

(V

in

= 48V, airflow is from vin- to vin+)

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

40

Output Load Current(Amps)

600LFM

500LFM

400LFM

300LFM

200LFM

100LFM

Output Load Current(Amps)

600LFM

500LFM

400LFM

300LFM

200LFM

100LFM

45

50

Ambient Temperature in Degrees Celsius

55

60

65

70

75

80

85

45

50

55

Ambient Temperature in Degrees Celsius

60

65

70

75

80

85

Maximum Current Temperature Derating at Sea Level

(V

in

= 60V, airflow is from vin- to vin+)

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

40

Maximum Current Temperature Derating at Sea Level

(V

in

= 75V, airflow is from vin- to vin+)

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

40

Output Load Current(Amps)

600LFM

500LFM

400LFM

300LFM

200LFM

100LFM

600LFM

500LFM

400LFM

300LFM

200LFM

100LFM

45

50

Ambient Temperature in Degrees Celsius

55

60

65

70

75

80

85

45

50

Ambient Temperature in Degrees Celsius

55

60

65

70

75

80

85

www.murata-ps.com/support

SDC_IRS Series.A01.D06

Page 5 of 26

参数名称	属性值
Product Attribute	Attribute Value
制造商 Manufacturer	Murata(村田)
产品种类 Product Category	Isolated DC/DC Converters
RoHS	Details
Number of Outputs	1 Output
Output Power	50 W
Input Voltage	18 V to 75 V
Output Voltage-Channel 1	5 V
Output Current-Channel 1	10 A
Isolation Voltage	2250 V
安装风格 Mounting Style	Through Hole
长度 Length	36.47 mm
宽度 Width	26.31 mm
高度 Height	12.7 mm
Industry	Industrial, Commercial
产品 Product	Isolated
Dimensions	36.47 mm x 26.31 mm x 12.7 mm
系列 Packaging	Tray
最大工作温度 Maximum Operating Temperature	+ 85 C
最小工作温度 Minimum Operating Temperature	- 40 C
工厂包装数量 Factory Pack Quantity	48

IRS-5/10-Q48N-C

IRS-5/10-Q48N-C概述

IRS-5/10-Q48N-C规格参数

文档预览

IRS-5/10-Q48N-C相似产品对比

推荐资源