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WRA1212CS-3W 반도체 회로 부품 판매점

DUAL/SINGLE OUTPUT DC-DC CONVERTER



Mornsun 로고
Mornsun
WRA1212CS-3W 데이터시트, 핀배열, 회로
WRA_CS-3W & WRB_CS-3W Series
3W, WIDE INPUT, ISOLATED & REGULATED
DUAL/SINGLE OUTPUT DC-DC CONVERTER
RoHS
FEATURES
2:1 wide input voltage range
I/O Isolation 1500VDC
Short circuit protection
(automatic recovery)
External On/Off control
Internal SMD construction
Operating temperature: -40°C to +85°C
RoHS Compliance
APPLICATIONS
The WRA_CS-3W & WRB-CS-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 range2:1);
2) Where isolation is necessary between input
and output(Isolation Voltage1500VDC);
3) Where the regulation of the output voltage
and the output ripple noise are demanded.
MODEL SELECTION
WRA2412CS-3W
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
PRODUCT PROGRAM
Part
Num ber
W RA1205CS- 3W
W RA1212CS- 3W
Input
Voltage (VDC)
Nominal Range Max.*
Volt age
(VDC)
±5
±12
Output
Current (mA)
Max.
±300
±125
Min.
±30
±13
W RA1215CS- 3W
±15 ±100
±10
WRB1205CS-3W 12 9.0-18 22 5 600 60
W RB1209CS- 3W
9 333 33
W RB1212CS- 3W
12 250
25
W RB1215CS- 3W
W RA2405CS- 3W
15 200
20
±5 ±300 ±30
W RA2412CS- 3W
W RA2415CS- 3W
±12 ±125
±15 ±100
±13
±10
WRB2405CS-3W 24 18-36 40 5 600 60
W RB2409CS- 3W
9 333 33
W RB2412CS- 3W
12 250
25
W RB2415CS- 3W
15 200
20
*Input voltage cant exceed this value, or will cause the permanent damage.
Efficiency
(%, Typ.)
74
78
80
74
76
78
80
76
80
81
76
78
80
81
COMMON SPECIFICATIONS
Item
Test Conditions
Min. Typ. Max. Units
Storage humidity
95 %
Operating temperature
-40 85
Storage temperature
Temp. Rise at full load
-55 125 °C
15
Lead Temperature
1.5mm from case for 10 seconds
300
No-load power consumption
100 mW
Cooling
Free air convection
Case material
Plastic (UL94-V0)
Short circuit protection
Continuous, automatic recovery
MTBF
1000
K hours
Weight
6g
MORNSUN Science & Technology co.,Ltd.
Address: 2th floor 6th building, Huangzhou
Industrial District, Guangzhou, China
Tel: 86-20-38601850
Fax: 86-20-38601272
Http://www.mornsun-power.com
ISOLATION SPECIFICATIONS
Item
Test Conditions
Min.
Isolation voltage
Tested for 1 minute and 1mA max 1500
Isolation resistance
Test at 500VDC
1000
Isolation capacitance
100KHz,1V
Typ. Max. Units
VDC
MΩ
80 pF
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice.
WRA_CS-3W & WRB_CS-3W A/2-2009 Page 1 of 3


WRA1212CS-3W 데이터시트, 핀배열, 회로
OUTPUT SPECIFICATIONS
Item
Test conditions
Min. Typ. Max. Units
Output power
See above products program
Positive voltage accuracy Refer to recommended circuit
Negative voltage accuracy Refer to recommended circuit
Load regulation
10% to 100% load (WRB_CS-3W)
10% to 100% load (WRA_CS-3W)*
Line regulation
Input voltage from low to high
Temperature drift (Vout) Refer to recommended circuit
0.3
3W
±1 ±3
±3 ±5
±0.5 ±0.75 %
±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 range
300 KHz
*Dual output models unbalanced load (25/100%): ±5%Max.
**Test ripple and noise by parallel cablemethod. See detailed operation instructions at Testing of Power
Converter section, application notes.
TYPICAL TEMPERATURE CURVE
Operating Temp.( C )
APPLICATION NOTE
1) 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 converterThe value of
R can be derived as follows:
R= Vc-VD-1.0
Ic
2) Recommended circuit
If you want to further decrease the input/output ripple, an LCfiltering 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: 12V 100μF
24V 10μF-47μF
Cout: 100uF(Typ.)
Lin: 4.7μH -120μH
Lout: 2.2μH-10μH
Cs: 10μF-47μF
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). General: Ip 1.4*Iin-max
4) No parallel connection or plug and play
RECOMMENDED CIRCUIT
Single Output
Vc D1 Ic R
Vin Lin 2
3
Cin
GND
1
6 +Vo
8
Cout
Cs
7 0V
Dual Output
Vc
Vin
D1 Ic R
Lin 2
3
Cin
GND
1
6 Lout
+ Vo
Cout
7
Lout
8
0V
Cout
- Vo
(Figure 1)
Ip
Input Voltage
Range
Input Voltage (V)
(Figure 2)
External Capacitor Table(Table 1)
Single Vout Cout (μF) Dual Vout Cout (μF)
(VDC)
(Max)
(VDC)
(Max)
5
1000
±5
680
9 680 ±9 470
12 470 ±12 330
15 330 ±15 220
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice.
WRA_CS-3W & WRB_CS-3W A/2-2009 Page 2 of 3




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WRA1212CS-3W converter

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DUAL/SINGLE OUTPUT DC-DC CONVERTER - Mornsun