WDD20 SERIES
DC-DC CONVERTER 15 ~ 20W
WDD20 – 03 S 1
WATTAGE
1: 9~18V IN
2: 18~36V IN
03 : 3.3V OUT 3: 36~72V IN 05 : 5V OUT 12 :12V OUT 15 : 15V OUT S : SINGLE OUTPUT
MODEL LIST
MODEL NO.
INPUT VOLTAGE 9~18 VDC9~18 VDC9~18 VDC9~18 VDC18~36 VDC18~36 VDC18~36 VDC18~36 VDC36~72 VDC36~72 VDC36~72 VDC36~72 VDC9~18 VDC9~18 VDC18~36 VDC18~36 VDC36~72 VDC36~72 VDC
OUTPUT WATTAGE
OUTPUT VOLTAGE
OUTPUT CURRENT 4500 mA4000 mA1670 mA1330 mA4500 mA4000 mA1670 mA1330 mA4500 mA4000 mA1670 mA1330 mA± 830 mA± 670 mA± 830 mA± 670 mA± 830 mA± 670 mA
Single Output Models 15 WATTS+3.3 VDC
+ 5 VDC20 WATTS
+ 12 VDC20 WATTS
+ 15 VDC20 WATTS
+3.3 VDC15 WATTS
+ 5 VDC20 WATTS
+ 12 VDC20 WATTS
+ 15 VDC20 WATTS
+3.3 VDC15 WATTS
+ 5 VDC20 WATTS
+ 12 VDC20 WATTS
+ 15 VDC20 WATTS
Dual Output Models
WDD20 - 12D1
WDD20 - 15D1 WDD20 - 12D2 WDD20 - 15D2 WDD20 - 12D3 WDD20 - 15D3
20 WATTS20 WATTS20 WATTS20 WATTS20 WATTS20 WATTS
± 12 VDC± 15 VDC± 12 VDC± 15 VDC± 12 VDC± 15 VDC
D : DUAL OUTPUT EFF. (TYP.) 80% 83% 86% 87% 80% 85% 86% 88% 80% 85% 87% 88% 85% 87% 87% 88% 87% 89%
EFF. (MIN.) 77% 81% 84% 85% 78% 83% 84% 86% 78% 83% 85% 86% 83% 85% 85% 86% 85% 87%
CASE
WDD20 - 03S1 WDD20 - 05S1 WDD20 - 12S1 WDD20 - 15S1 WDD20 - 03S2 WDD20 - 05S2 WDD20 - 12S2 WDD20 - 15S2 WDD20 - 03S3 WDD20 - 05S3 WDD20 - 12S3 WDD20 - 15S3 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
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 sales@chinfa.com
元器件交易网www.cecb2b.com
WDD20 SERIES
DC-DC CONVERTER 15 ~ 20W
SPECIFICATION
All Specifications Typical At Nominal Line, Full Load, 25℃ Unless Otherwise Noticed
GENERAL SPECIFICATION
* Switching frequency: ......................... 180KHz * Isolation voltage: .............................. 1,500VDC
* Isolation resistance: .......................... 100M Ω(min.) * Operating ambient temperature: ......... -25 to +71℃ * Storage temperature: ........................ -40 to +100℃ * Max. Case temperature: ..................... 100℃
* M.T.B.F.: .......................................... 277,000Hrs at @ GF40, according to MIL-HDBK-217F * Cooling: ........................................... Free air convection * Temperature coefficient: .................... ±0.02% / ℃ * Dimension: ......................................
50.8 x 40.6 x 10.2mm
INPUT SPECIFICATIONS
* Input voltage range / frequency: ........ 9 ~ 18VDC for 12V 18 ~ 36VDC for 24V 36 ~ 72VDC for 48V * Input filter: ....................................... Pi type
* No load input current: ........................ 20mA for 12V in 15mA for 24V in 10mA for 48V in * Max. Input voltage: ........................... 20VDC for 12V in 40VDC for 24V in 75VDC for 48V in * Startup voltage: ................................. 8.5VDC for 12V in 15VDC for 24V in 33VDC for 48V in
OUTPUT SPECIFICATIONS
* Output voltage accuracy: ................... ±2% at Vo_nom
* Minimum load: .................................. No load for single output models ±10% at Vo_nom for dual output models * Line regulation: ................................ ±1% at Vo_nom
* Load regulation: ............................... ±2% at Vo_nom for single output models ±5% at Vo_nom for dual output models * Ripple & noise: ................................. 150mV (max.)
* Efficiency: ........................................ Up to 89%, see model list * Voltage trim range: ........................... Vout x 10% Vout x 5% for 3.3 Vout * Derating: ......................................... See table 1 * Case material: .................................. Metal
CONTROL AND PROTECTION
* Remote on/off: ................................. ON : open or 8 ~ 10VDC OFF : -0.3 ~ 2VDC
* Input reversed: ................................. Shunt diode use external fuse * Output short circuit: .......................... Continuous
CHINFA ELECTRONICS IND., CO. LTD. ISO 9001 Certified www.chinfa.com sales@chinfa.com
元器件交易网www.cecb2b.com
WDD20 SERIES
DC-DC CONVERTER 15 ~ 20W
PHYSICAL CHARACTERISTICS CASE SIZE CASE MATERIAL MECHANISM & PIN CONFIGURATION mm [inch] 50.80 [2.00] 10.16 [0.4] 5.00 [0.20]DIA 1.00 [0.04] 45.72 [1.80]2.54 [0.10] 5.08 [0.20]5 17.78 [0.70]10.16 [0.40] 5.08 [0.20] 10.16 [0.40] 7.62 [0.30]
PIN ASSIGMENT
PIN NO. SINGLE DUAL
1
2
4
124610.16 [0.40]750.8 x 40.6 x 10.2mm 2 x 1.6 x 0.4inches Metal WEIGHT 60 g 40.64 [1.60]BOTTOM VIEW810.16 [0.40]50.80 [2.00]5 6 7 8
Vi+ Vi- S.D. NO PIN Vo+ Vo- Trim Vi+ Vi- S.D. Vo+ com Vo- Trim S.D. : REMOTE ON/OFF
Derating:
[TABLE 1]
100
Power out [%]NATURALCONVECTIONCOOLING0-25
60
70
100
Ambient Temperture [℃]
CHINFA ELECTRONICS IND., CO. LTD. ISO 9001 Certified www.chinfa.com sales@chinfa.com
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