WRE-YS-1W&WRF-YS-1W

WRE-YS-1W&WRF-YS-1W

WRE-YS-1W&WRF-YS-1W

WRE-YS-1W&WRF-YS-1W

WRE-YS-1W&WRF-YS-1W

WRE-YS-1W&WRF-YS-1W

WRE-YS-1W&WRF-YS-1W

Series

http://www.microdc.cn

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

Page 2 of 3

ISOLATION

ISOLATION

ISOLATION

ISOLATION

ISOLATION

ISOLATION

ISOLATION

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

Item

Item

Item

Item

Test

Test

Test

Test Conditions

Conditions

Conditions

Conditions

Min.

Min.

Min.

Min.

Typ.

Typ.

Typ.

Typ.

Max.

Max.

Max.

Max.

Units

Units

Units

Units

Isolation voltage

Tested for 1 minute and 1mA max

3000

VDC

Isolation resistance

Test at 500VDC

1000

MΩ

Isolation capacitance

100KHz,1V

35

pF

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

OUTPUT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

SPECIFICATIONS

Item

Item

Item

Item

Test

Test

Test

Test conditions

conditions

conditions

conditions

Min.

Min.

Min.

Min.

Typ.

Typ.

Typ.

Typ.

Max.

Max.

Max.

Max.

Units

Units

Units

Units

Output power

0.1

1

W

Positive voltage accuracy

Refer to recommended circuit

±1

±3

%

Negative voltage accuracy

Refer to recommended circuit

±3

±5

Load regulation

10% to 100% load(WRF_YS-1W)

±0.5

±0.75

10% to 100% load(WRE_YS-1W)*

±0.75

±1.0

Line regulation

Input voltage from Low To high

±0.2

±0.5

Temperature Drift (Vout)

Refer to recommended circuit

±0.03

%/℃

Ripple & Noise**

20MHz Bandwidth

25

75

mVp-p

Switching frequency

Input voltage range 100% load

300

KHz

*Dual output models unbalanced load (25/100%): ±5%Max.

**Test

ripple

and

noise

by " Parallel

cable " method. See

detailed

operation

instructions

at

Testing

of

Power Converter section, application notes.

TYPICAL

TYPICAL

TYPICAL

TYPICAL

TYPICAL

TYPICAL

TYPICAL

TEMPERATURE

TEMPERATURE

TEMPERATURE

TEMPERATURE

TEMPERATURE

TEMPERATURE

CURVE

CURVE

CURVE

CURVE

CURVE

CURVE

CURVE

1)

1)

1)

1) Recommended

Recommended

Recommended

Recommended circuit

circuit

circuit

circuit

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).

However, the capacitance of the output filter capacitor must be proper. If the capacitance is too big,

a startup problem might arise. For every

channel of output,

provided

the safe

and

reliable

operation is ensured, the greatest capacitance of its filter capacitor sees (Table 1). General:

Cin:

5V,12V

100µF 

24V,48V

10µF 

Cout:

47µF  (Typ.)

Lin:

4.7µH-120µH 

Lout:

2.2µH-10µH 

Cs:

10µH-22µF 

2)

2)

2)

2) CTRL

CTRL

CTRL

CTRL Terminal

Terminal

Terminal

Terminal

When open or high

impedance,the converter work well; When

this pin

is "high"

the converter

shutdown; It should be note that the input current (Ic) should between 5-10mA,exceeding

the maximum

20mA will cause permanence damage to the converter. The value of R Can be derived as follows :

3)

3)

3)

3) Input

Input

Input

Input current

current

current

current

While using unstable power source, please ensure the output voltage and ripple voltage do not

exceed

indexes

of

the

converter.

The

preceding

power

source

must

be

able

to

provide

for converter sufficient starting current Ip (Figure 2).

General: Ip ≤1.4Iin-max

4) No

No

No

No parallel

parallel

parallel

parallel connection

connection

connection

connection or

or

or

or plug

plug

plug

plug and

and

and

and play

play

play

play

APPLICATION

APPLICATION

APPLICATION

APPLICATION

APPLICATION

APPLICATION

APPLICATION

NOTE

NOTE

NOTE

NOTE

NOTE

NOTE

NOTE

Temperature

Temperature

Temperature

Temperature Derating

Derating

Derating

Derating Graph

Graph

Graph

Graph

RECOMMENDED

RECOMMENDED

RECOMMENDED

RECOMMENDED

RECOMMENDED

RECOMMENDED

RECOMMENDED

CIRCUIT

CIRCUIT

CIRCUIT

CIRCUIT

CIRCUIT

CIRCUIT

CIRCUIT

Single Output

External Capacitor Table(Table 1)

Single

Single

Single

Single

Single

Single

Single

Vout

Vout

Vout

Vout

Vout

Vout

Vout

Cout

Cout

Cout

Cout

Cout

Cout

Cout

Cout

Dual

Dual

Dual

Dual

Dual

Dual

Dual

Vout

Vout

Vout

Vout

Vout

Vout

Vout

Cout

Cout

Cout

Cout

Cout

Cout

Cout

Cout

(VDC)

(VDC)

(VDC)

(VDC)

((((μ

μ

μ

μF)

F)

F)

F)

(VDC)

(VDC)

(VDC)

(VDC)

((((μ

μ

μ

μF)

F)

F)

F)

5

680

±5

330

9

560

±9

270

12

470

±12

220

15

330

±15

150

Ic

0

.

1

−

−

=

V

V

R