WRA2412LS-3W Datasheet, PDF (1/2 Pages) MORNSUN Science& Technology Ltd. – WIDE INPUT, ISOLATED & REGULATED DUAL OUTPUT DC/DC CONVERTER

WRA_LS-3W Series
3W , WIDE INPUT, ISOLATED & REGULATED
DUAL OUTPUT DC/DC CONVERTER
Patent Protection RoHS
FEATURES
Wide (2:1) Input Range
I/0 Isolation 1500VDC
Operating Temperature: -40°C to +85°C
Short Circuit Protection(automatic recovery)
External On/Off control
MTBF>1,000,000 hours
RoHS Compliance
APPLICATIONS
The WRA_LS-3W Series are specially designed
for applications where a wide range input voltage
power supplies are isolated from the input power
supply in a distributed power supply system on a
circuit board.
These products apply to:
1) Where the voltage of the input power supply is
wide range(voltage range≤ 2:1);
2) Where isolation is necessary between input
and output(isolation voltage≤1500VDC);
3) Where the regulation of the output voltage and
the output ripple noise are demanded.
MODEL SELECTION
WRA2412LS-3W
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
PRODUCT PROGRAM
Part
Number
W RA2412LS-3W
W RA2415LS-3W
Input
Voltage (VDC)
Nominal Range Max*
24
18-36
40
Output
Volt age
(VDC)
±12
Current (mA)
Max Min
±125 ±13
±15 ±100 ±10
Efficiency
(%, Typ)
82
83
W RA4812LS-3W
±12 ±125 ±13
80
48
36-72
80
W RA4815LS-3W
±15 ±100 ±10
81
Note:
1.Models listed with strike-through text have been officially discontinued.
2.* Input voltage over it may cause permanent damage to the device.
3. The load shouldn't be less than 10%, otherwise ripple will increase dramatically.
4.Operation under 10% load will not damage the converter; However, they may not meet all specification
listed.
OUTPUT SPECIFICATIONS
Item
Test Conditions
Min Typ Max Units
Output power
Refer to products program
Positive voltage accuracy Refer to recommended circuit
Negative voltage accuracy Refer to recommended circuit
Load regulation*
From 10% to 100% load
Line regulation
Input voltage from low to high
Temperature drift (Vout) Refer to recommended circuit
0.3
3
W
±1
±3
±3
±5
%
±0.5 ±1.0
±0.2 ±0.5
±0.03 %/°C
Ripple & Noise**
20MHz Bandwidth
50 100 mVp-p
Switching Frequency
100% load, input voltage
300
KHz
*Dual output models unbalanced load: ±5%.
**Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of
Power Converter section, application notes.
MORNSUN Science & Technology co.,Ltd
Address: 2th floor 6th building, Huangzhou Industrial
District, Guangzhou, China
Tel: [phone]
Fax: [phone]
Http://www.mornsun-power.com
ISOLATION SPECIFICATIONS
Item
Test conditions
Min Typ Max Units
Isolation voltage
Tested for 1 minute and 1mA max 1500
VDC
Isolation resistance
Test at 500VDC
1000
MΩ
Isolation Capacitance Input/output, 100KHz/1V
80
PF
Note:
1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output
load unless otherwise specified.
2. See below recommended circuits for more details.
MORNSUN reserves the copyright
Specifications subject to change without notice.
W RA_LS-3W
A/3-2012
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