Datasheet > WRF1215YS-1W

WRF1215YS-1W

更新时间： 2022-08-27 10:40:58

品牌	Logo	应用领域
MICRODC		转换器输出元件输入元件 DC-DC转换器
页数	文件大小	规格书
3页	677K
描述
1W, WIDE INPUT,ISOLATED®ULATED SINGLE OUTPUT DC-DC CONVERTER

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数据手册

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WRF1215YS-1W 数据手册

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

APPLICATION NOTE

ISOLATION SPECIFICATIONS

Temperature Derating Graph

Item

Test Conditions

Min.

Typ.

Max.

Units

Isolation voltage

Isolation resistance

Isolation capacitance

Tested for 1 minute and 1mA max

Test at 500VDC

3000

1000

VDC

MΩ

100KHz,1V

OUTPUT SPECIFICATIONS

Item

Test conditions

Min.

0.1

Typ.

Max.

Units

Output power

Positive voltage accuracy

Negative voltage accuracy

Refer to recommended circuit

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

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

Input voltage from Low To high

Refer to recommended circuit

20MHz Bandwidth

±1

±3

±5

±0.5

±0.75

±0.2

±0.75

±1.0

±0.5

±0.03

Load regulation

Line regulation

Temperature Drift (Vout)

Ripple & Noise**

%/℃

mVp-p

KHz

Switching frequency

Input voltage range 100% load

300

RECOMMENDED CIRCUIT

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

Single Output

**Test ripple and noise by " Parallel cable " method.

See detailed operation instructions at Testing of Power Converter section, application notes.

TYPICAL TEMPERATURE CURVE

1) Recommended 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

Cout:

Lin:

Lout:

Cs:

10µF

47µF (Typ.)

4.7µH-120µH

2.2µH-10µH

10µH-22µF

2) CTRL 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 :

V −V −1.0

R =

3) Input 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).

External Capacitor Table(Table 1)

General: Ip ≤1.4Iin-max

Single Vout

Cout

(μF)

680

560

470

330

Dual Vout

(VDC)

±5

Cout

(μF)

330

270

220

150

(VDC)

4) No parallel connection or plug and play

±9

±12

±15

http://www.microdc.cn

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

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