2B2415XS [MICRODC]

Fixed Input,Isolated 2W Single Output DC/DC Converters;


型号：	2B2415XS
厂家：	MICRODC POWER TECHNOLOGY CO., LTD
描述：	Fixed Input,Isolated 2W Single Output DC/DC Converters
文件：	总5页 (文件大小：645K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

2B-X(S)D Series

Fixed Input,Isolated 2W Single Output DC/DC Converters

SELECTION GUIDE

Input

Voltage

(V)

Output

Voltage

(V)

Output

Current

(MA)

Input Current

(Rated Load)

(MA)

Efficiency

(%)

Isolation

Capacitance

(PF)

MTTF¹

Order code

(KHRS)

2B0503XS

2B0505XS

2B0505XD

2B0509XS

2B0509XD

2B0512XS

2B0512XD

2B0515XS

2B0515XD

2B0524XS

2B0524XD

2B1205XS

2B1205XD

2B1209XS

2B1209XD

2B1212XS

2B1212XD

2B1215XS

2B1215XD

2B1224XS

2B1224XD

2B1515XS

2B1515XD

2B2405XS

2B2406XS

2B2409XS

2B2412XS

2B2415XS

2B2424XS

2B2405XD

2B2409XD

2B2412XD

2B2415XD

2B2424XD

3.3

400

222

167

133

470

455

450

442

200

190

185

3988

3956

3682

3299

2833

2766

2519

2405

2235

2011

1800

1789

2012

2015

2000

1850

1980

1800

1760

1800

1850

1886

1986

1801

1850

FEATURES

◆RoHS compliant

◆I/O isolation voltage 1000VDC

◆Operating Temperature: -40℃～﹢85℃

◆High efficiency up to 81%

◆Fully encapsulated toroidal magnetics

◆Internal SMD construction

400

222

167

133

◆Power density up to 0.85W/cm³

◆No electrolytic or tantalum capacitors

◆5V,9V,12V and 15V output

◆No heat sink required

◆Dual output from a single input rail

◆UL 94V-0 package material

◆No external components required

◆Industry standard pinout

133

400

333.3

222

167

133

185

104

102

100

◆Power sharing on output

◆MTTF up to 3.9 million hours

400

222

167

133

104

100

MODEL SELECTION

①

②

③

④

⑤

2B 05 05 X S

①Product Series

③Output Voltage

⑤SIP Package

②Input Voltage

④Fixed Input

add Suffix “P” for Continuous Short Circuit Protection, e.g. 2B0505XDP

Input Characteristics

APPLICATIONS

Parameter

Conditions

Min Typ Max. Units

The 2B-X(S)D series of DC/DC converters

is particularly suited to isolating and or

converting DC power rails. The galvanic

isolation allows the device to be configured to

provide an isolated negative rail in systems

where only positive rails exist. The wide

temperature range guarantees startup from

-40°C and full 2 watt output at 85℃. Pin

compatibility with the B_XLS series ensures

ease of upgradeability.

Continuous operation,5V input types

4.5

5.5

Continuous operation,12V input types

Continuous operation,24V input types

10.8

21.6

13.2

26.4

Voltage range

Reflected ripple current

7.5

mA p-p

Absolute Maximum Ratings

Short-circuit protection²

1 second

Lead temperature 1.5mm from case for 10 seconds

300℃

Internal power dissipation

Input voltage VIN,B05 types

550mW

Input voltage VIN,B12 types

15V

1.Calculated using MIL-HDBK-217FN2 calculation model with nominal input voltage at full load.

2.Supply voltage must be disconnected at the end of the short circuit duration.

MICRODC RESERVES THE COPYRIGHT

All specifications typical at TA=25°C,nominal input voltage and rated output current unless otherwise specified.

http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646

Page 1 of 5

2B-X(S)D Series

OUTPUT CHARACTERISTICS

Parameter

Rated Power

Conditions

TA=-40℃ to 85℃

See tolerance envelope

High VIN to low VIN

3.3V output

Min.

Typ.

Max.

Units

0.2

Voltage Set Point Accuracy

Line regulation

1.05

1.2

5V output

12.8

8.3

6.8

6.3

6.0

Load regulation

9V output

12V output

10% to 100% load

15V output

24V output

Capacitive loading and start up

Typical start up times for this series, with a typical input voltage rise time of 2.2s and output capacitance of 10F, are saw in the table below. The product

series will start into a capacitance of 47F with an increased start time, however, the maximum recommended output capacitances 10F

Typical Start-Up Wave Form

Start-up time

2B0505XS

2B0509XS

2B0512XS

2B0515XS

2B1205XS

2B1209XS

2B1212XS

2B1215XS

444

1120

1930

3470

409

1320

2270

Isolation Characteristics

Parameter

Conditions

Min.

Typ.

Max.

Units

Isolation voltage

Flash tested for 1 second

1000

VDC

Resistance

1000

MΩ

V^{iso= 500VDC}

General Characteristics

Parameter

Conditions

Min.

Typ.

Max.

Units

Switching frequency

kHz

Temperature Characteristics

Parameter

Conditions

Min.

Typ.

Units

Specification

Storage

All output types

-40

-50

125

℃

B0505XS output types

B1205XS output types

All other output types

Case temperature above

ambient

http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646

Page 2 of 5

2B-X(S)D Series

Temperature derating graph

Tolerance envelope

The voltage tolerance envelope shows typical load regulation characteristics for this

product series. The tolerance envelope is the maximum output voltage variation due

to changes in output

OUTPUT RIPPLE REDUCTION

Output ripple reduction

By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max.

Component selection

Capacitor: Ceramic chip capacitors are recommended. It is required that the ESR(Equivalent Series Resistance)should be as low as possible.X7R types are recommended.

The voltage rating should be at least twice(except for 15V output),the rated output voltage of the DC/DC converter.

Inductor: The rated current of the inductor should not be less than of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor should be

such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF(Self Resonant Frequency) should be >20MHz.

CHARACTERISATION TEST METHODS

Ripple & Noise Characterization Method

All measurement to be taken with the following components connected to the UUT as detailed below. 50 Ohm coax cable, solder

connections one end, BNC plug at the other end.

Ripple and noise measurements are performed with the following test conﬁguration.

1μF X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter

10μF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less than 100mΩ at 100 KHz

100nF multilayer ceramic capacitor, general purpose

450Ω resistor, carbon ﬁ lm, ±1% tolerance

50Ω BNC termination

3T of the coax cable through a ferrite toroid

RLOAD

Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires

Measured values are multiplied by 10 to obtain the specﬁed values.

Differential Mode Noise Test Schematic

http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646

Page 3 of 5

2B-X(S)D Series

Technical notes

ISOLATION VOLTAGE

"Hi Pot Test","Flash Tested","Withstand Voltage","Dielectric Withstand Voltage"&”Isolation Test Voltage" are all terms that relate to the same thing, a test voltage.

Applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.

Professional Power Module B series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1KVDC for 1 second.

A question commonly asked is,"What is the continuous voltage that can be applied across the part in normal operation?"

The B_X(S)D series has been recognized by Underwriters Laboratory for functional insulation. Both input and output should normally be maintained within SELV limits i.e. less than

42.4V peak, or 60VDC.The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system.

The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier, but then the circuitry on both sides of the barrier must

be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-acssible circuitry according to

safety standard requirements.

REPEATED HIGH-VOLTAGE ISOLATION TESTING

It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials.

Construction and environment. The B series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. While

parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically

polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We

therefore strongly advise against repeated high voltage isolation testing. but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage.

This consideration equally applies to agency recognized parts for better than functional isolation where the wire enamel insulation is always supplemented by a further

insulation system of physical spacing or barriers.

PACKAGE SPECIFICATIONS

MECHANICAL DIMENSIONS

SIP Package DIP Package

FOOTPRINT

SIP7

FOOTPRINT

DIP14

Function

+Vin

Function

GND

-Vin

-Vout

+Vout

+V0

No Pin

Vin

NC No connection

Specifcations can be changed any time without notice.

No parallel connection or plug and play.

Note:

1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically.

2. Operation under 10% load will not damage the converter; However, they may not meet all specification listed.

3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless

otherwise specified.

All dimensions in inches ±0.01(mm±0.25mm).

All pins on a 0.1(2.54) pitch and within ±0.01(0.25)of true position.

4. In this datasheet, all the test methods of indications are based on corporate standards.

Weight: 2.8g(SIP)

4.2g(DIP)

RECOMMENDED FOOTPRINT DETAILS

4 Pin SIP Package 14 Pin DIP Package

Unless otherwise stated all dimensions in inches (mm) 0.5mm

http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646

Page 4 of 5

2B-X(S)D Series

TUBE OUTLINE DIMENSIONS

4 PIN SIP Tube

14 PIN DIP Tube

Unless otherwise stated all dimensions in inches (mm) ±0.5mm.

Tube length (14 Pin DIP) : 20.47 (520mm ±2mm).

Tube length (4 Pin SIP) : 20.47 (520mm ±2mm).

Tube Quantity :25

RoHS COMPLIANT INFORMATION

Microdc Professional Power Module,Inc.

This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°C

for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte

Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are

backward compatible with Sn/Pb soldering systems.

Tel:0086-20-86000646 E-mail:tech@microdc.cn

Website:http://www.microdc.cn

Microdc Professional Power module,Inc.makes no representation that

the use of its products in the circuits described herein, or the use of other

technical information contained herein, will not infringe upon existing or

future patent rights. Specifications are subject to change without notice.

REACH COMPLIANT INFORMATION

This series has proven that this product does not contain harmful chemicals, it also has harmful chemical

substances through the registration, inspection and approval.

http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646

Page 5 of 5

2B2415XS [MICRODC]

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