WRA1212YMD-20W Datasheet, PDF (1/3 Pages) Microdc power Technology Co., Ltd – 20W, WIDE INPUT, ISOLATED®ULATED DUAL OUTPUTDC-DC CONVERTER

WRA-YMD-20W Series
20W, WIDE INPUT, ISOLATED&REGULATED DUAL OUTPUTDC-DC CONVERTER
FEATURES
◆Efficiency up to 87%
◆Wide (2:1)Input Range
◆1500 VDC I/O Isolation
◆Short Circuit Protection (automatic recovery)
SELECTION GUIDE
Order code
Voltage^*
(VDC)
Input
Current
No Load
(mA)
WRA1212YMD-20W
9-18
30
Current
Full Load
(mA)
1937
Output
Voltage
(VDC)
Current
(mA)
±12
±835
WRA1215YMD-20W
9-18
30
1937
± 15
± 665
WRA2412YMD-20W
18-36
30
957
±12
± 835
WRA2415YMD-20W
18-36
30
957
± 15
± 665
WRA4812YMD-20W
36-75
20
478
±12
± 835
WRA4815YMD-20W
36-75
20
484
± 15
± 665
*Input voltage can’t exceed this value, or will cause the permanent damage.
Efficiency
(%)
Capacitor
Load (uF)
89
±470
89
± 330
90
± 470
90
± 330
90
± 470
89
± 330
◆Operating Temperature: -40°C to+85°C
◆Internal SMD construction
◆Metal Shielding Package
◆Reg. Dual Output
◆MTBF>1,000,000 hours
◆Soft Start and Remote Ctrl.
◆Over Voltage/Current Protection
◆RoHS Compliance
MODEL SELECTION
WRA^①12^②12^③Y^④ MD^⑤-20W(835)^⑥
①Product Series ②Input Voltage
③Output Voltage ④Wide (2:1) Input Range
⑤package style
⑥Rated Power(Output current)
APPLICATIONS
The WRA-YMD-20W series is a family of cost
effective 20W, dual output DC/DC converters
with a wide 2:1 Input.These converters are
encapsulated in nickel coated copper 2″x1″
case with high performance technology like
active clamp, high efficiency operation and
output voltage accuracy of ±1% maximum.
Precise controlled design provides tight line/
load regulation .
MICRODC RESERVES THE COPYRIGHT
Input Specifications
Voltage Range
Input Filter
Input Reflected Ripple Current¹
Start up Time (Nom. Vin and constant resistive load)
Output Specifications
Voltage Accuracy
Voltage Adjustability (Trim–only Single Output)
Short Circuit Protection
Over Current Protection
Line Regulation
Load Regulation (0% - 100%)
Cross Regulation³ (Dual Output)
Ripple and Noise (20Mhz bandwidth)
Temperature Coefficient
Transient Recovery Time⁴
Transient Response Deviation⁴
General Specifications
Efficiency
I/O Isolation Voltage (3 sec.)
I/O Isolation Capacitance
I/O Isolation Resistance
Switching Frequency
Humidity
Reliability Calculated MTBF (MIL-HDBK-217F)
Physical Specifications
Case Material
Potting Material
Weight
Environment Specifications
Operating Temperature
Maximum Case Temperature
Storage Temperature
Cooling
RoHS Conform
2:1 Wide Input
PI Type
20 mA pk-pk
20mS, typ.
± 1%
± 10%, max.
Indefinite (Hiccup, Automatic Recovery)
140% of max. Iout
± 0.2%
± 1% (Dual)
± 5%
75 mV pk-pk
± 0.02% /°C
250us, typ.
± 3%, max.
See Table
1500 VDC
1200 pF, typ.
1000 M Ohm
330 kHz, typ.
95% rel H
> 0.684 Mhrs
Nickel Coated Copper
Epoxy (UL94V-0 rated)
~ 30g, typ.
-40 to +71°C (ambient)
100°C
-40 to +125°C
Free Air Convection
Soldering 260°C, max. (1.5mm from case 10s.)
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