R-78B2.5-1.5L.pdf , 데이터시트 , 데이타시트

No Preview Available !

Features

● Efficiency up to 95%,Non isolated,

no need for heatsinks

● Pin-out compatible with LM78XX Linears

● Low profile( L*W*H=11.5*8.5*17.5mm)

● Wide input range.(4.75V ~ 18V)

● Short circuit protection, Thermal shutdown

● Non standard outputs available as specials

between 1.5V ~ 6.5V

● Low ripple and noise

● “L” Version with 90° pins

Description

The R-78Bxx-1.5 Series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are

pin compatible. The efficiency of up to 95% means that very little energy is wasted as heat so there is no need for any

heat sinks with their additional space and mounting costs. The L-Version with 90° pins allows direct replacement for

laid-flat regulators where component height is at a premium.Low ripple and noise figures and a short circuit input

current of typically only 10mA round off the specifications of this versatile converter series.

INNOLINE

DC/DC-Converter

with 3 year Warranty

1.5 AMP

SIP3

Single Output

Selection Guide

Part

Number*

SIP3

Input

Range

(V)

Output

Voltage

(V)

R-78B1.5-1.5

4.75 – 18

1.5

R-78B1.8-1.5

4.75 – 18

1.8

R-78B2.5-1.5

4.75 – 18

2.5

R-78B3.3-1.5

4.75 – 18

3.3

R-78B5.0-1.5

6.5 – 18

5.0

R-78B6.5-1.5

8.0 – 18

6.5

* add Suffix “L” for 90° bent pins, e.g. R-78B5.0-1.5L

Output

Current

(A)

1.5

Efficiency

Min. Vin Max. Vin

(%) (%)

83 78

85 81

88 84

91 88

94 92

95 93

RoHS

2011/65/EU

6/6

EN-55022 Certified

EN-55024 Certified

EN-60950-1 Certified

R-78B-1.5

Typical Application Circuit

+Vin

R-78Bxx-1.5

-Vin

+Vout

-Vout

Derating-Graph

(Ambient Temperature)

120

100

40 Safe Operating Area

-40 0

25 50

7585 100

Operating Temperature (°C)

www.recom-international.com

REV: 1/2013

I-25

No Preview Available !

INNOLINE

DC/DC-Converter

R-78Bxx-1.5

(L) Series

Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10 %)

Characteristics

Input Voltage Range

Conditions

All Series, see Selection Guide

Min.

4.75V

Typ.

Max.

18.0V

Output Voltage Range (for customized parts)

All Series

1.5V

6.5V

Output Current

All Series

0mA*

1500mA

Output Current Limit

All Series

5000mA

Short Circuit Input Current (Vin = 12V)

All Series

100mA

Internal Power Dissipation

0.65W

Short Circuit Protection

Continuous, automatic recovery

Output Voltage Accuracy (At 100% Load)

Line Voltage Regulation (Vin = min. to max. at full load)

Load Regulation (10% to 100% full load)

Dynamic Load Stability (with Output Capacitor=100µF)

All Series

100% <-> 50% load

Transient Recovery Time

±2%

0.3%

0.6%

±80mV

1.0ms

±3%

0.5%

0.8%

±120mV

1.5ms

Ripple & Noise (10% to 100% full load)

All Series

15mV

30mVp-p

Temperature Coefficient

Max capacitance Load

-40°C ~ +85°C ambient

with normal start-up time, no external components

with <1 second start up time + diode protection circuit

0.015%/°C

1000µF

6800µF

Switching Frequency

300kHz

340kHz

380kHz

Quiescent Current

Vin = min. to max. at 0% load

7mA 9mA

Input Reflected Ripple Current

All Series

150mA

200mAp-p

Operating Temperature Range

-40°C

+85°C

Operating Case Temperature

+100°C

Storage Temperature Range

-55°C

+125°C

Case Thermal Impendance

60°C / W

Thermal Shutdown

Internal IC junction

+160°C

Relative Humidity

95% RH

Case Material

Epoxy with Non-Conductive Plastic Case (UL94V-0)

Package Weight

Packing Quantity

42 pcs per Tube

Conducted Emissions

EN55022

Class B

Radiated Emissions

EN55022

Class B

ESD EN61000-4-2

Class A

Safety Certification

Report: SPCLVD 1301026-1

EN-60950-1:2006 + A12:2011

}MTBF (+25°C) Detailed Information see

(+71°C) Application Notes chapter "MTBF"

using MIL-HDBK 217F

3250 x 10³ hours

1059 x 10³ hours

*Note: Operation under no load will not damage these devices, however they may not meet all specifications. A minimum load of 10mA is recommended

I-26

REV: 1/2013

www.recom-electronic.com

No Preview Available !

INNOLINE

DC/DC-Converter

Characteristics

Efficiency

100

Vo=6.5V

Vo=5V

Vo=3.3V

Vo=1.8V

Vo=2.5V

Vo=1.5V

5 10 15

Vin ( V )

Efficiency Vs Vin (Full Load)

100 Vo=6.5V

Vo=5V

Vo=3.3V

Vo=2.5V

75 Vo=1.8V

Vo=1.5V

0.5 1.0

Output Current ( A )

Efficiency Vs Load ( Vin=Max )

1.5

R-78Bxx-1.5

(L) Series

Ripple

25 Vo=6.5V

Vo=5V

Vo=3.3V

Vo=2.5V

Vo=1.8V

Vo=1.5V

5 10

Vin ( V )

Ripple Vs Vin (Full Load)

25 Vo=6.5V

Vo=5V

Vo=3.3V

Vo=2.5V

Vo=1.8V

Vo=1.5V

0.5 1.0

Output Current ( A )

Ripple Vs Load ( Vin=Max )

1.5

100 Vo=6.5V

Vo=5V

Vo=3.3V

Vo=2.5V

Vo=1.8V

Vo=1.5V

0.5 1.0

Output Current ( A )

Efficiency Vs Load ( Vin=Min )

1.5

Vo=6.5V

Vo=5V

Vo=2.5,V, 3.3V

Vo=1.5V, 1.8V

0.5 1.0

Output Current ( A )

Ripple Vs Load ( Vin=Min )

1.5

Optional Protection Circuit

Optional Protection 1:

Optional Protection 2:

Add a blocking diode to Vout if

current can flow backwards into

the output, as this can damage

the converter when it is powered

down.

The diode can either be fitted

across the device if the source is

low impedance or fitted in series

with the output (recommended).

www.recom-international.com

+Vin

-Vin

R-78xx-xx

+Vout

+Vin

-Vout

REV: 1/2013

-Vin

R-78xx-xx

Schottky Diode

Vout=

+Vout -

0.3V

-Vout

I-27

No Preview Available !

INNOLINE

DC/DC-Converter

Application Examples

High efficiency multiple output

R-78Bxx-1.5

(L) Series

+Vin R-78B5.0-1.5

R05P215D/P

22µF

-Vin

+5V@1A

+15V@66mA

0V Isolated

Common

-15V@66mA

- Wide input range suits both 12V and 7.2V battery packs

- 5.2kV isolated short circuit protected outputs for analogue circuits, e.g. medical grade interface

- High efficiency +5V/1A protected output for digital circuits

- Further decoupling filtering may be necessary between the converters

Isolated, wide Input range, Distributed Power Architecture (Point of Load)

+5V Rtn

RP10-4812SEW

+12V@0.1A

+Vin

R-78B5.0-1.0

+5V@1A

-Vin

- High isolation voltage - 1.6kV

- Improved loading / line regulation

- Wide Input Voltage Range - 18~75V

- Point-of-Load Architecture

- C1 is required. Further decoupling filtering

may be necessary between the converters

C2,C3 : optional

R-78B3.3-1.0

+3.3V@1A

Package Style and Pinning (mm)

SIP3 PIN Package

RECOM

R-78B5.0-1.5

17.5 ****

Pb 0.51 typ.

4.10 0.7 typ.

11.50

Bottom View

0.25

3.21 5.08 2.0

8.50 8.50

Front View

4.10

Front View

1.50 max

L - Version

Recommended Footprint Details

1.00ø+0.15/0

2.54

Top View

2.54

3rd angle

projection

RECOM

R-78B5.0-1.5

****

123

Pin Connections

Pin #

xx.x ±0.5mm

xx.xx ±0.25mm

+Vin

GND

+Vout

I-28

REV: 1/2013