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WRA_ZLS-2W&WRB_ZLS -2W Series
Wide Input
,I
solated
&R
egulated Dual/Single Output SIP
-9(10) DC/DC Converter
nput,I
,Isolated
solated&R
&Regulated
SIP-9(10)
SELECTION GUIDE
Input voltage
range
3.3 VDC
Output current
max.
500 mA
WRB2405ZLS-2W
5 VDC
400 mA
76 %
WRB2412ZLS-2W
12 VDC
165 mA
79 %
15 VDC
135 mA
80 %
±5 VDC
±200 mA
73 %
WRA2412ZLS-2W
±12 VDC
±85 mA
77 %
WRA2415ZLS-2W
±15 VDC
±65 mA
79 %
WRA2418ZLS-2W
±18VDC
±56 mA
79%
WRB4803ZLS-2W
3.3 VDC
500 mA
70 %
Order code
WRB2403ZLS-2W
9 – 36 VDC
WRB2415ZLS-2W
(24 VDC nominal)
WRA2405ZLS-2W
FEATURES
Ultra-wide 4:1 input range
◆
Lengthened SIP-9(10) package
◆
Output voltage
5 VDC
400 mA
72 %
12 VDC
165 mA
78 %
15 VDC
135 mA
78 %
WRA4805ZLS-2W
±5 VDC
±200 mA
70 %
WRA4812ZLS-2W
±12 VDC
±85 mA
76 %
WRA4815ZLS-2W
±15 VDC
±65 mA
76 %
WRB4805ZLS-2W
Full SMD design
◆
WRB4812ZLS-2W
Temperature range –40°C to +85°C
18 – 75 VDC
WRB4815ZLS-2W
(48 VDC nominal)
◆
High efficiency
◆
Efficiency
typ.
71 %
Excellent load and line regulation
◆
*Input voltage can't exceed this value,or will cause the permanent damage.
◆
Indefinite short-circuit protection
◆
I/O isolation 1500 VDC
◆
Remote On/Off control
◆
Fully RoHS compliant
◆
3-year product warranty
Input Specifications
Parameter
MODEL SELECTION
①
②
③
④
⑤
results
24 Vin models:
48 Vin models:
15 mA typ.
Input current at full load (nominal input)
24 Vin models:
110 mA typ.
48 Vin models:
55 mA typ.
24 Vin models:
50 V max.
48 Vin models:
100 V max.
⑥
WR
WRA
A 24 05 Z LS -2W
Surge voltage (100 msec. max.)
①Product Series ②Input Voltage
③Output Voltage ④Wide (4:1) Input Range
⑤Lengthened SIP Package Style
⑥ Rated Power
Reverse voltage protection
0.5 A max.
Input Filter
capacitor type
Start up time
<1ms (at nominal input and
resistive load)
DESCRIPTION
The WRA(B)-ZLS-2W series is a new family of isolated
2W dc-dc converter modules with regulated output,
featuring ultra-wide 4:1 input voltage ranges of 9-36 VDC
or 18-75 VDC.The product comes in a ultra-compact
SIP-9 plastic package.
An excellent efficiency up to 84% allows –40°C ~ +85°C
operation temperatures at full load. Further features
include remote On/Off control and continuous short circuit
protection. Typical applications for these ultra-compact
converters are battery operated equipment and distributed
power architectures in communication, instrumentation
and industrial electronics, everywhere where space on the
PCB is critical.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.
OUTPUT SPECIFICATIONS
Parameter
results
±2 %
Voltage set accuracy
Regulation
– Input variation Vin min. to Vin max.
0.5 % max.
– Load variation 25 – 100 %
0.75 % max.
single output models:
dual output models:
(operation at lower load condition is
safe but a higher output ripple will
be experianced)
Temperature coefficient
±0.1 %/°C
Ripple and noise
50 mVpk-pk max
(20 MHz Bandwidth)
Transient response (25 % load step change)
Capacitive load
http://www.microdc.cn
2.0 % max. (balanced load)
25 % of rated max current
Minimum load
300 µs max.
Short circuit protection
MICRODC RESERVES THE COPYRIGHT
20 mA typ.
Input current at no load (nominal input)
3.3 VDC / 5 VDC models:
12 VDC / 15VDC models:
±5 VDC / ±12 VDC models:
±15 VDC models:
constant current (automatic
recovery)
2’200 µF max. / 1’000 µF max.
170 µF max. / 110 µF max.
470 µF max. / 100 µF max.
(each output)
47 µF max. (each output)
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 1 of 2
WRA_ZLS-2W&WRB_ZLS -2W Series
General Specifications
Parameter
results
– Operating
– Case temperature
– Storage
Temperature ranges
–40°C to +85°C
+90°C max.
–55°C to +105°C
Derating (convection cooling)
3.3 %/K above 70°C
Humidity (non condensing)
95 % rel. H max.
Reliability, calculated MTBF (MIL-HDBK-217F at +25°C, ground benign)
>1 Mio h
Isolation voltage (60 sec.)
1’500 VDC
Isolation capacitance
Isolation resistance
– Input/Output
– Input/Output
500 pF max.
– Input/Output (500 VDC)
>1‘000 M Ohm
Switching frequency
100 to 650 kHz (PFM)
– On:
– Off:
– Off stand by input current
Remote On/Off control
<0.6 VDC or open circuit
2.9 to 15 VDC
1 mA typ / 3 mA max.
Physical
PhysicalSpecifications
Specifications
Parameter
results
Casing material
non-conductive plastic
Potting material
epoxy (UL 94V-0 rated)
Weight
6.5 g (0.23 oz)
Soldering temperature
max. 260°C / 10 sec.
– Reach
– RoHS directive 2002/95/EC
Environmental compliance
http://www.microdc.cn/uploadfiles/WRA(B)-ZLS-2W.pdf
All specifications valid at nominal input voltage, full load and +25°
+25°C after warm-up time unless otherwise stated.
Outline Dimensions
Pin-Out
Pin
Single
Dual
1
–Vin (GND)
–Vin (GND)
2
+Vin (Vcc)
+Vin (Vcc)
3
Remote On/Off
Remote On/Off
6
+Vout
+Vout
7
ntc
Common
8
ntc
ntc
9
–Vout
–Vout
(ntc = not to connect)
Dimensions in [mm], () = Inch
Pin diameter ø 0.5 ±0.05 (0.02 ±0.002)
Tolerances
±0.5 (±0.02)
Pin pitch tolerances ±0.2 (±0.008)
Note:
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 data sheet, 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.
RoHS COMPLIANT INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature
of 300°C for 10 seconds.
The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin
with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this
series are backward compatible with Sn/Pb soldering systems.
Microdc Professional Power Module,Inc.
Tel:0086-20-86000646
E-mail:[email protected]
Website:http://www.microdc.cn
REACH COMPLIANT INFORMATION
This series has proven that this product does not contain harmful chemicals, it also has
harmful chemical substances through the registration, inspection and approval.
http://www.microdc.cn
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
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