Datasheet WDD20-15D2, WDD20-15D1, WDD20-12S3, WDD20-12S2, WDD20-12S1 Datasheet (CHINFA)

DC-DC CONVERTER

WDD20 SERIES

15 ~ 20W

WATTAGE

MODEL LIST

MODEL NO.

WDD20 - 03S1 9~18 VDC 15 WATTS +3.3 VDC 4500 mA 80% 77% FF
WDD20 - 05S1
WDD20 - 12S1
WDD20 - 15S1
WDD20 - 03S2 18~36 VDC
WDD20 - 05S2
WDD20 - 12S2
WDD20 - 15S2
WDD20 - 03S3 36~72 VDC
WDD20 - 05S3
WDD20 - 12S3
WDD20 - 15S3

WDD20 - 12D1
WDD20 - 15D1
WDD20 - 12D2 18~36 VDC
WDD20 - 15D2
WDD20 - 12D3
WDD20 - 15D3

INPUT

VOLTAGE

9~18 VDC 20 WATTS
9~18 VDC 20 WATTS
9~18 VDC 20 WATTS

18~36 VDC 20 WATTS
18~36 VDC 20 WATTS
18~36 VDC 20 WATTS

36~72 VDC 20 WATTS
36~72 VDC 20 WATTS
36~72 VDC 20 WATTS

9~18 VDC 20 WATTS
9~18 VDC 20 WATTS

18~36 VDC 20 WATTS
36~72 VDC 20 WATTS
36~72 VDC 20 WATTS

OUTPUT

WATTAGE

Single Output Models

15 WATTS

15 WATTS

Dual Output Models

20 WATTS

OUTPUT

VOLTAGE

+ 5 VDC 4000 mA 83% 81% FF
+ 12 VDC 1670 mA 86% 84% FF
+ 15 VDC 1330 mA 87% 85% FF
+3.3 VDC 4500 mA 80% 78% FF
+ 5 VDC 4000 mA 85% 83% FF
+ 12 VDC 1670 mA 86% 84% FF
+ 15 VDC 1330 mA 88% 86% FF
+3.3 VDC 4500 mA 80% 78% FF
+ 5 VDC 4000 mA 85% 83% FF
+ 12 VDC 1670 mA 87% 85% FF
+ 15 VDC 1330 mA 88% 86% FF

± 12 VDC ± 830 mA 85% 83% FF
± 15 VDC ± 670 mA 87% 85% FF
± 12 VDC ± 830 mA 87% 85% FF
± 15 VDC ± 670 mA 88% 86% FF
± 12 VDC ± 830 mA 87% 85% FF
± 15 VDC ± 670 mA 89% 87% FF

WDD20 – 03 S 1

03 : 3.3V OUT
05

: 5V OUT

12 : 12V OUT
15 : 15V OUT

OUTPUT

CURRENT

1: 9~18V IN
2: 18~36V IN
3: 36~72V IN

S : SINGLE OUTPUT

D : DUAL OUTPUT

EFF.

(TYP.)

EFF.

(MIN.)

CASE

FEATURES

* LOW COST
* 2:1 WIDE INPUT RANGE
* I/O ISOLATION
* INPUT Pi FILTER
* SHORT CIRCUIT PROTECTION
* HIGH PERFORMANCE
* 2 YEARS WARRANTY

DESCRIPTION

THE WDD20 SERIES ARE 15 WATTS AND 20 WATTS SINGLE & DUAL OUTPUT DC/DC CONVERTERS, 2:1
WIDE INPUT RANGE WITH I/O ISOLATION AND SHORT CIRCUIT PROTECTION FEATURES MAKES IT SUITABLE
USED ON VARIABLE APPLICATIONS WITH LOW COST. ALL WDD20 MODELS CONTAIN PI INPUT FILTER TO
MINIMIZE REFLECTED RIPPLE & NOISE. ALL MODELS ARE PACKAGED IN 2” x 1.6” x 0.4” BLACK COATED
METAL CASE, AND PCB MOUNTABLE DIRECTLY.

CHINFA ELECTRONICS IND., CO. LTD.
ISO 9001 Certified

www.chinfa.com
[e-mail]

DC-DC CONVERTER

WDD20 SERIES

15 ~ 20W

SPECIFICATION

All Specifications Typical At Nominal Line, Full Load, 25℃ Unless Otherwise Noticed

GENERAL SPECIFICATION

* Switching frequency: .........................

* Isolation voltage: ..............................

* Isolation resistance: ..........................

* Operating ambient temperature: .........

* Storage temperature: ........................

* Max. Case temperature: .....................

* M.T.B.F.: ..........................................

* Cooling: ...........................................

* Temperature coefficient: ....................

* Dimension: ......................................

INPUT SPECIFICATIONS

* Input voltage range / frequency: ........

* Input filter: .......................................

* No load input current: ........................

* Max. Input voltage: ...........................

* Startup voltage: .................................

OUTPUT SPECIFICATIONS

* Output voltage accuracy: ...................

* Minimum load: ..................................

* Line regulation: ................................

* Load regulation: ...............................

* Ripple & noise: .................................

* Efficiency: ........................................

* Voltage trim range: ...........................

* Derating: .........................................

* Case material: ..................................

CONTROL AND PROTECTION

* Remote on/off: .................................

* Input reversed: .................................

* Output short circuit: ..........................

180KHz
1,500VDC
100M Ω(min.)

-25 to +71℃

-40 to +100℃
100℃
277,000Hrs at @ GF40, according to MIL-HDBK-217F

Free air convection
±0.02% / ℃

50.8 x 40.6 x 10.2mm

9 ~ 18VDC for 12V
18 ~ 36VDC for 24V
36 ~ 72VDC for 48V
Pi type
20mA for 12V in
15mA for 24V in
10mA for 48V in
20VDC for 12V in
40VDC for 24V in
75VDC for 48V in

8.5VDC for 12V in
15VDC for 24V in
33VDC for 48V in

±2% at Vo_nom
No load for single output models

±10% at Vo_nom for dual output models
±1% at Vo_nom
±2% at Vo_nom for single output models
±5% at Vo_nom for dual output models

150mV (max.)
Up to 89%, see model list
Vout x 10%
Vout x 5% for 3.3 Vout
See table 1

Metal

ON : open or 8 ~ 10VDC
OFF : -0.3 ~ 2VDC
Shunt diode use external fuse
Continuous

CHINFA ELECTRONICS IND., CO. LTD.
ISO 9001 Certified

www.chinfa.com
[e-mail]

WDD20 SERIES

MECHANISM & PIN CONFIGURATION

mm [inch]

10.16 [0.4]

5.00 [0.20]

2.54 [0.10]

50.80 [2.00]

DIA 1.00 [0.04]

45.72 [1.80]

DC-DC CONVERTER
15 ~ 20W

PHYSICAL CHARACTERISTICS

CASE SIZE

CASE MATERIAL Metal

WEIGHT 60 g

50.8 x 40.6 x 10.2mm
2 x 1.6 x 0.4inches

17.78 [0.70]

5.08 [0.20]

10.16 [0.40]

7.62 [0.30]

1
2

BOTTOM VIEW

4

5

6

7

8

5.08 [0.20]

10.16 [0.40]

10.16 [0.40]

10.16 [0.40]

40.64 [1.60]

50.80 [2.00]

PIN ASSIGMENT

PIN NO. 1 2 4 5 6 7 8

SINGLE Vi+ Vi- S.D. NO PIN Vo+ Vo- Trim

DUAL Vi+ Vi- S.D. Vo+ com Vo- Trim

S.D. : REMOTE ON/OFF

Derating:

[TABLE 1]

CHINFA ELECTRONICS IND., CO. LTD.
ISO 9001 Certified

Power out [%]

100

NATURAL
CONVECTION
COOLING

0

7060

Ambient Temperture [℃]

www.chinfa.com
[e-mail]

100-25