WRA-YMD-3W＆WRB-YMD -3W Series
TEMPERATURE CHARACTERISTICS
TYPICAL CHARACTERISTICS
Parameter
Output power
Conditions
Min.
Typ.
Max.
3
Units
Temperature Derating Graph
Refer to products program
Refer to recommended circuit
Refer to recommended circuit
0.3
W
%
%
Positive voltage accuracy
Negative voltage accuracy
±1
±3
±3
±5
Load regulation
Line regulation
Form 10% to 100% load
Input voltage from low to high
Refer to recommended circuit
20MHz Bandwidth
±0.5
±0.2
±1*
±0.5
±0.03
150
%
%
Temperature drift (Vout)
Ripple & Noise**
%/°C
mVp-p
KHz
75
Switching frequency
100% load, input voltage range
300
*
Dual output models unbalanced load: ±5%.
RECOMMENDED CIRCUIT
** Test ripple and noise by “parallel cable” method. See detailed operation
instructions at Testing of Power Converter section, application notes.
Output Graph
COMMON SPECIFICATIONS
Parameter
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
Cooling
Conditions
Min. Typ. Max. Units
95
85
%
-40
-55
±1
±3
15
℃
℃
℃
℃
125
1.5mm from case for 10 seconds
300
Free Air Convection
Short circuit protection
Case material
Continuous, Automatic recovery
Aluminium Alloy
No-load power consumption
Isolation voltage
Isolation resistance
Isolation Capacitance
MTBF
0.2
W
VDC
MΩ
Tested for1 minute and 1mA max
Test at 500VDC
1500
1000
Input/output
100
15
pF
1000
K hours
g
Output External Capacitor Table(Table 1)
Weight
Single Vout
Cout
(μF)
2200
1000
680
Dual Vout Cout
(VDC)
3.3
5
(VDC)
±5
(μF)
680
470
330
220
----
APPLICATION NOTE
±9
Requirement on output load
9
±12
±15
----
In order to ensure the product operate efficiently and
Reliably,in addition to a max load(namely full load), a
Minimum load is specified for this kind of DC/DC
12
470
15
330
24
220
----
----
Converter.Make sure the specified range of input voltage
Is not exceeded,the minimum output load no less than 10%
load.If the actual load is less than the specified minimum load, the output ripple may increase
sharply while its efficiency and reliability will reduce greatly.If the actual output power is
very small,please add an appropriate resistor as extra loading,or contact our company for other
lower output power products.
http://www.microdc.cn Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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MICRODC [ MICRODC POWER TECHNOLOGY CO., LTD ]
