WRB4812YMD-15W [MICRODC]

Isolated 15W Single Output DC/DC Converter; 隔离15W单输出DC / DC转换器


型号：	WRB4812YMD-15W
厂家：	MICRODC POWER TECHNOLOGY CO., LTD
描述：	Isolated 15W Single Output DC/DC Converter 隔离15W单输出DC / DC转换器转换器
文件：	总4页 (文件大小：810K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

WRB-YMD-15W Series

Isolated 15W Single Output DC/DC Converter

SELECTION GUIDE

Nominal

Input

Voltage

Output

Voltag

Output

Current Limit

A(MIN.) A(MAX.)

Efficiency

MTTF²

kHrs

Input

Current

order code

Voltage

WRB2403YMD-15W

WRB2405YMD-15W

WRB2412YMD-15W

WRB2415YMD-15W

WRB4803YMD-15W

WRB4805YMD-15W

WRB4812YMD-15W

WRB4815YMD-15W

2403-Y2X11K515W

2405-Y2X11K515W

2412-Y2X11K515W

2412-Y2X11K516W

4803-Y2X11K515W

4805-Y2X11K515W

4812-Y2X11K515W

4815-Y2X11K516W

3.3

4.4

7.5

3.7

335

286

281

295

301

302

296

FEATURES

◆RoHS compliant

3.3

1.3

2.5

4.4

7.5

◆High efficiency to 89%

◆Power density up to 2.4W/cm³

◆UL 94V-0 package material

◆Industry standard pinout

◆Non latching current limit

◆Constant 350kHz frequency

◆1.5kV input to output isolation

◆Versatile control options

7.5

3.7

1.3

2.5

INPUT CHARACTERISTICS

Parameter

Conditions

Min.

Typ.

Max.

Units

Voltage range

Continuous operation, 24V input types

Continuous operation, 48V input types

◆Continuous rating to 30W at 40℃ without

OUTPUT CHARACTERISTICS

Heatsink

Parameter

Conditions

Min.

Typ.

Max.

Units

Voltage set point error

50% load

0.5

◆Operation to zero load

Case temperature -40oC to 110oC

Load 0% - 100%

◆Protected against load faults

◆Internal over temperature protection

◆Uses no electrolytic capacitors

Overall voltage error

2.5

Input specified range

Temperature coefficient

of output voltage (slope

ppmoC

250

Deviation of output

voltage

MODEL SELECTION

WRB 24 03 Y MD -15W

①

②

③

④

⑤

⑥

Temperature MIN-MAX

Operating voltage range, 50% load

0% - 100% rated load

rms

Line regulation

Load Regulation

Ripple

0.5

①Product Series

③Output Voltage

⑤Metal Shield

⑦Rated Power

②Input Voltage

④Wide (2:1) Input Range

⑥DIP Package Style

0.1

0.5

DESCRIPTION

ISOLATION CHARACTERISTICS

The WRB-YMD-15W series of DC/DC converters

combines ease of application with versatility. The pin

pattern is based on the popular industry standard, but two

additional pins may optionally be fitted to provide a variety

of features not commonly found on units of this type. High

efficiency enables full rating to be achieved in a small

package without heats inking, and a high surge capability

will provide for start-up and transient loads, whilst being

thermally protected against sustained overload. Overload

protection of the “constant current” type ensures start-up

into complex load conditions. The copper case achieves

efficient heat transfer and screening. The product range

has been recognized by Underwriters Laboratory (UL) to

UL 1950 for operational insulation, file number E179522

applies.

Parameter

Isolation test

Resistance

Conditions

Flash tested for 1 second

VISO = 500VDC

Min.

1500

Typ.

Max.

Units

VDC

GΩ

ABSOLUTE MAXIMUM RATINGS

Input voltage, 24V input types

Input voltage, 48V input types

Output voltage

-0.5V to 40V

-0.5V to 80V

-0.3V to regulated voltage

-1V to +30V

Output trim control

Synchronisation/shutdown control

±15V relative to input return

1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.

2. Absolute maximum value for 30 seconds. Prolonged operation may damage the product.

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

MICRODC reserves the copyright

http://www.microdc.cn

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

Page 1 of 4

WRB-YMD-15W Series

CONTROL CHARACTERISTICS

Parameter

Conditions

MIN.

TYP.

MAX.

Units

Voltage trimming range

At rated load, trim control at either output

Not operating

±10

Remote switch input (voltage relative to

input negative)¹

-15

1.5

Operating, open circuit voltage

Time from application of valid input

voltage to output being in specification

Specified drive signal

Start Delay

Synchronisation

320

330

440

395

KHz

Switching frequency

350

1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.

2. Absolute maximum value for 30 seconds. Prolonged operation may damage the product.

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

TEMPERATURE CHARACTERISTICS

Parameter

Conditions

MIN.

TYP.

MAX.

Units

Case temperature

Full load

-40

110

125

ºC

Storage

Absolute Max. internal temperature

Non condensing 85ºC

-40

Relative humidity

Thermal protection

Operates at case temperature

110

ºC

THERMAL CHARACTERISTICS

Max. permissable loads for a given ambient temperature for any WRB-15W model.

Temperature (ºC)

Power (W)

Temperature (ºC)

Power (W)

11.7

9.8

8.8

7.8

13.7

Max. power rating with case temperature maintained by external means (e.g. forced air cooling).

Case Temperature

Part Number

Units

100ºC

105ºC

110ºC

WRB2403YMD-15W

WRB2405YMD-15W

WRB2412YMD-15W

WRB2415YMD-15W

WRB4803YMD-15W

WRB4805YMD-15W

WRB4812YMD-15W

WRB4815YMD-15W

http://www.microdc.cn

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

Page 2 of 4

WRB-YMD-15W Series

THERMAL PERFORMANCE

24V Input

48V Input

TECHNICAL NOTES

ISOLATION VOLTAGE

‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof 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.

MICRODC Power Solutions WR-YMD-15W series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1500

VDC for 1 second.

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

The WR-YMD-15W series has been recognized by Underwriters Laboratory, 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-accessible 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. While manufactured parts can 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 specifi ed test voltage.

http://www.microdc.cn

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

Page 3 of 4

WRB-YMD-15W Series

PACKAGE SPECIFICATIONS

MECHANICAL DIMENSIONS

PIN CONNECTIONS

Function

-V_IN

+V_IN

+V_OUT

TRIM

-V_OUT

* Optional pins

The copper case is internally connected to the output (-VOUT) pin. Care is needed in the design of this circuit board on which the converter is mounted. Top side tracks must

not contact the edge of the case or the ferrite core, visible on the underside of the unit. The case size may be (LXW)50.08mmX 25.4mm.

Please note that from 2010 onwards you may receive either a blue or a black case finish.

RECOMMENDED FOOTPRINT DETAILS

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

* Optional control pins

RoHS COMPLIANT INFORMATION

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.

Microdc Professional Power Module,Inc.

REACH COMPLIANT INFORMATION

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

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

harmful chemical substances through the registration, inspection and approval.

Website:http://www.microdc.cn

http://www.microdc.cn

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

Page 4 of 4

相关型号：