WR-ZD-6W

WRA_ZD-6W&WRB_ZD -6W Series
6W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC
DC--DC CONVERTER
SELECTION GUIDE
FEATURES
Input
◆Wide (4:1) Input Range
Output
Efficiency
◆Short Circuit Protection(automatic recovery)
Order code
Voltage(VDC)
(%.Typ.)
Nominal
◆1500VDC Isolation
◆Operating Temperature: -40℃~﹢85℃
◆Five sided metal shielding
◆No external component required
◆Internal SMD construction
Current(mA)
Voltage
Range
Max*
(VDC)
Max.
Min.
WRA2405ZD-6W
24
9-36
40
±5
±600
±60
76
WRA2412ZD-6W
24
9-36
40
±12
±250
±25
81
WRA2415ZD-6W
24
9-36
40
±15
±200
±20
83
WRB2403ZD-6W
24
9-36
40
3.3
1500
150
74
WRB2405ZD-6W
24
9-36
40
5
1200
120
76
◆RoHS Compliance
WRB2412ZD-6W
24
9-36
40
12
500
50
81
◆MTBF>1000Khours
WRB2415ZD-6W
24
9-36
40
15
400
40
81
WRA4805ZD-6W
48
18-72
80
±5
±600
±60
85
WRA4812ZD-6W
48
18-72
80
±12
±250
±25
83
WRA4815ZD-6W
48
18-72
80
±15
±200
±20
85
WRB4803ZD-6W
48
18-72
80
3.3
1500
150
74
WRB4805ZD-6W
48
18-72
80
5
1200
120
78
WRB4812ZD-6W
48
18-72
80
12
500
50
80
WRB4815ZD-6W
48
18-72
80
15
400
40
80
MODEL SELECTION
WRB①24②12③Z④ D⑤-6W⑥
①Product Series
③Output Voltage
⑤DIP Package Style
②Input Voltage
④Wide (4:1) Input Range
⑥ Rated Power
APPLICATIONS
The WRA_ZD-6W&WRB_ZD-6W 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≤4:1);
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.
*Input voltage can’t exceed this value,or will cause the permanent damage.
COMMON SPECIFICATIONS
Parameter
Conditions
Min.
Units
95
%
Operating temperature
-40
85
℃
Storage temperature
-55
125
℃
40
Temp. rise at full load
Lead temperature
℃
300
1.5mm from case for 10 seconds
Cooling
Free Air Convection
Short circuit protection
Continuous,automatic recovery
Case material
Steel,nickel plated, plastic
℃
Isolation voltage
Tested for1 minute and 1mA max
1500
VDC
Isolation resistance
Test at 500VDC
1000
MΩ
MTBF
http://www.microdc.cn
Max.
Storage humidity
1000
Isolation Capacitance
MICRODC reserves the copyright
Typ.
1000
Weight
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
pF
K hours
17
g
page 1/3
WRA_ZD-6W&WRB_ZD -6W Series
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Min.
Output power
See below products program
0.6
Positive voltage accuracy
Refer to recommended circuit
Negative voltage accuracy
TYPICAL CHARACTERISTICS
Typ.
Max.
Units
6
W
±1
±3
%
Refer to recommended circuit
±3
±5
%
Load regulation
Form 10% to 100% load
±0.5
±2*
%
Line regulation
Input voltage from low to high
±0.2
±0.5
%
Temperature drift (Vout)
Refer to recommended circuit
±0.02
Ripple**
20MHz Bandwidth
20
50
mVp-p
Noise**
20MHz Bandwidth
50
100
mVp-p
Switching frequency
100% load, input voltage range
300
Temperature Derating Graph
%/℃
KHz
RECOMMENDED CIRCUIT
* Dual output models unbalanced load: ±5%.
Output Graph
** Test ripple and noise by “parallel cable” method. See detailed operation instructions at
Testing of Power Converter section, application notes.
APPLICATION NOTE
Requirement on output load
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 converter.Make sure the specified range of input voltage is not
exceeded,the minimum output load no less than 10% load
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.
Recommended Circuit
All the WRA_ZD-6W&WRB_ZD-6W Series have been tested according to
the following recommended testing circuit before leaving factory.This series
should be tested under load(see Figure 1).
If you want to further decrease the input/output ripple,you can increase
capacitance properly or choose capacitors with low ESR. However, the
capacitance should not be too high, or may cause start-up problem.
General:
Cin: 24V&48V 10μF-47μF
Cout: 10μF/100mA
Input current
Output External Capacitor Table(Table 1)
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≤1.6*Iin-max
No parallel connection or plug and play
http://www.microdc.cn
Single Vout
Cout
Dual Vout
Cout
(VDC)
(μF)
(VDC)
(μF)
3.3
2200
±5
680
5
1000
±12
330
12
470
±15
220
15
330
--
--
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
page 2/3
WRA_ZD-6W&WRB_ZD -6W Series
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
Note:
Unit:mm[inch]
Pin section tolerances:±0.10mm[±0.004inch]
General tolerances:±0.25mm[±0.010inch]
RECOMMENDED FOOTPRINT
Top view grid:2.54mm(0.1inch)
diameter:1.00mm(0.039inch)
TUBE OUTLINE DIMENSIONS
FOOTPRINT DETAILS
Pin
Single
Dual
2、3
GND
GND
9
NC
0V
11
NC
-Vo
14
+Vo
+Vo
16
0V
0V
22、23
Vin
Vin
NC:No connection
When the environment temperature is higher than
71
71℃,, the product output power should be less
then 60% of the rated power.
No parallel connection or plug and play.
Use dual output simultaneously,forbid pening
output pin (0V) to use as single output.
Note:
Note:
Unit :mm[inch]
General tolerances:±0.50mm[±0.020inch]
L=530mm[20.866inch] Tube Quantity: 15pcs
L=220mm[8.661inch] Tube Quantity: 6pcs
1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically.
2. Operation under 10% load will not damage the converter; However, they may not meet all specification listed.
3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise
specified.
4. In this datasheet, all the test methods of indications are based on corporate standards.
5. Only typical models listed, other models may be different, please contact our technical person for more details.
http://www.microdc.cn
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
page 3/3