B2405LD-W25 [MORNSUN]

DUAL/SINGLE OUTPUT DC-DC CONVERTER; 双/单路输出DC -DC转换器


型号：	B2405LD-W25
厂家：	MORNSUN SCIENCE& TECHNOLOGY LTD.
描述：	DUAL/SINGLE OUTPUT DC-DC CONVERTER 双/单路输出DC -DC转换器转换器输出元件 DC-DC转换器
文件：	总2页 (文件大小：120K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

A_D-W25 & B_LD-W25 Series

0.25W, FIXED INPUT, ISOLATED & UNREGULATED

DUAL/SINGLE OUTPUT DC-DC CONVERTER

multi-country patent protection RoHS

FEATURES

PRODUCT PROGRAM

Input

Output

Current (mA)

1KVDC Isolation

DIP Package

Part

Number

Efficiency

(%, Typ)

Voltage (VDC)

Voltage

(VDC)

Internal SMD Construction

Temperature Range: -40°C to +85°C

No Heat sink Required

No External Component Required

Industry Standard Pinout

RoHS Compliance

Nominal

3.3

Range

3.0-3.6

Max

75.8

B0303LD-W25*

B0305LD-W25*

A0505D- W25

A0509D- W25*

A0512D- W25*

A0515D- W25*

B0505LD- W25

B0509 LD- W25*

B0512 LD- W25

B0515 LD- W25

A1205D- W25*

A1209D- W25*

A1212D- W25*

A1215D- W25*

B1203 LD- W25*

B1205 LD- W25

B1209 LD- W25*

B1212 LD- W25

B1215 LD- W25*

A2405D- W25*

A2409D- W25*

A2412D- W25*

A2415D- W25*

B2405 LD- W25

B2409 LD- W25*

B2412 LD- W25*

B2415 LD- W25*

B2424LD- W25*

*Designing

3.3

±5

±9

±12

±15

±25

±13.8

±10.4

±8.3

4.5-5.5

27.8

20.8

16.7

±25

APPLICATIONS

The A_D-W25

±5

±9

±12

±15

3.3

& B_LD-W25 Series are

specially designed for applications where

group of polar power supplies are isolated from

the input power supply in a distributed power

supply system on a circuit board.

±13.8

±10.4

±8.3

75.8

These products apply to:

1) Where the voltage of the input power supply

is fixed (voltage variation ≤ ±10%);

10.8-13.2

2) Where isolation is necessary between input

and output (isolation voltage ≤1000VDC);

3) Where the regulation of the output voltage

and the output ripple noise are not

demanding.

27.8

20.8

16.7

±25

±5

±9

±12

±15

±13.8

±10.4

±8.3

Such as: purely digital circuits, ordinary low

frequency analog circuits, and IGBT power

device driving circuits.

21.6-26.4

27.8

20.8

16.7

10.4

MODEL SELECTION

B0505 LD-W25

Rated Power

PackageS tyle

Output Volt age

Input Voltage

Product Series

COMMON SPECIFICATIONS

Item

Test conditions

Min

-40

-55

Typ

Max

Units

°C

Operating Temp. Range

Storage Temp. Range

Storage humidity range

Cooling

125

Free air convection

MORNSUN Science & Technology co.,Ltd.

Address: 2th floor 6th building, Hangzhou

Industrial District, Guangzhou, China

Tel: 86-20-38601850

Fax: 86-20-38601272

http://www.mornsun-power.com

Temp. rise at full load

Lead temperature

Short circuit protection*

Case material

300

°C

1.5mm from case for 10 seconds

Plastic (UL94-V0)

MTBF

3500

K hours

Weight

2.1

*Supply voltage must be discontinued at the end of short circuit duration.

MORNSUN reserves the copyright

Specifications subject to change without notice.

A_D-W25 & B_LD-W25 A/1-2008

Page 1 of 2

ISOLATION SPECIFICATIONS

APPLICATION NOTE

Item

Test conditions

Min

Typ

Max

Units

VDC

MΩ

Requirement on output load

Isolation voltage

Isolation resistance

Tested for 1 minute and 1 mA max

Test at 500VDC

1000

To ensure this module can operate efficiently

and reliably, During operation, the minimum

output load is not less than 10% of the full load,

and that this product should never be

operated under no load! If the actual output

power is very small, please connect a resistor

with proper resistance at the output end in

parallel to increase the load.

OUTPUT SPECIFICATIONS

Item

Test conditions

Min

Max

0.25

±1.5

±1.2

Units

Output power

(3.3output)

For Vin change of 1%

Line regulation

Load regulation

(others output)

(3.3 output)

(5V output)

(9V output)

(12V output)

(15V output)

10.5

8.3

Overload Protection

Under normal operating conditions, the output

circuit of these products has no protection

against overload. The simplest method is to

connect a self-recovery fuse in series at the

input end or add a circuit breaker to the circuit.

10% to 100% load

6.8

6.3

Output voltage accuracy

See tolerance envelope graph

Temperature drift

Ripple & Noise*

100% full load

20MHz Bandwidth

0.03

%/°C

Recommended circuit

mVp-p

KHz

If you want to further decrease the input/output

ripple, an “LC” filtering network may be

connected to the input and output ends of the

DC/DC converter, see (Figure 1).

Switching frequency Full load, nominal input

100

*Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power

Converter section, application notes.

Note:

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

unless otherwise specified.

2.Dual output models unbalanced load: ±5%.

Dual Output

+Vo

Vin

Cout

TYPICAL CHARACTERISTICS

Cin

DC DC

Cout

GND

-Vo

Single Output

+Vo

Vin

Cout

Cin

DC DC

GND

(Figure 1)

It should also be noted that the inductance and

the frequency of the “LC” filtering network should

be staggered with the DC/DC frequency to avoid

mutual interference. However, the capacitance of

the output filter capacitor must be proper. If the

capacitance is too big, a startup problem might

arise. It’s not recommended to connect any

external capacitor in the application field .

Operating Temp.(^oC)

OUTLINE DIMENSIONS & PIN CONNECTIONS

First Angle Projection

20.00(0.787)

RECOMMENDED FOOTPRINT

Top view,grid:2.54*2.54mm(0.1*0.1inch)

diameter:1.00(0.039)mm

(Side View)

Output Voltage Regulation and Over-voltage

Protection Circuit

Single Output

The simplest device for output voltage

regulation,

over-voltage

and

over-current

protection is

linear voltage regulator with

15.24(0.600)

(Bottom View)

overheat protection that is connected to the input

or output end in series (Figure 2).

Dual Output

Dual Ou tput

+Vout

REG

Vi n

REG

9 8

GND

FOOTPRINT DETAILS

-Vout

Single

GND

Dual

GND

Single Output

+Vout

Vi n

REG

Note:

Unit:mm(inch)

Pin section:0.50*0.30mm(0.020*0.012inch)

Pin tolerances: 0.10mm( 0.004inch)

General tolerances: 0.25mm( 0.010inch)

GND

+Vo

No Pin

Vin

+Vo

-Vo

Vin

(Figure 2)

No parallel connection or plug and play.

MORNSUN reserves the copyright

Specifications subject to change without notice.

A_D-W25 & B_LD-W25 A/1-2008

Page 2 of 2

相关型号：