WRA2412ZD-8W [MICRODC]
8W, WIDE INPUT, ISOLATED & REGULATED DUAL OUTPUT DC-DC CONVERTER; 8W ，宽电压输入，隔离稳压双输出DC- DC转换器
| 型号： | WRA2412ZD-8W |
| 厂家： | 
MICRODC POWER TECHNOLOGY CO., LTD |
| 描述： | 8W, WIDE INPUT, ISOLATED & REGULATED DUAL OUTPUT DC-DC CONVERTER |
| 文件： | 总4页 (文件大小：679K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
WRA-ZD-8W＆WRB-ZD-8W Series
8W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC-DC CONVERTER
SELECTION GUIDE
Input voltage
Output current
max.
Order code
Output voltage
Efficiency typ.
range
9 – 36 VDC
9 – 36 VDC
2400 mA
1600 mA
666 mA
WRB2403ZD-2400
WRB2405ZD-8W
WRB2412ZD-8W
WRB2415ZD-8W
WRA2405ZD-8W
WRA2412ZD-8W
WRA2415ZD-8W
WRB4803ZD-2400
WRB4805ZD-8W
WRB4812ZD-8W
WRB4815ZD-8W
WRA4805ZD-8W
WRA4812ZD-8W
WRA4815ZD-8W
WRB7203ZD-2400
WRB7205ZD-8W
WRB7212ZD-8W
WRB7215ZD-8W
WRA7205ZD-8W
WRA7212ZD-8W
WRA7215ZD-8W
3.3 VDC
5 VDC
85 %
87 %
86 %
86 %
84 %
86 %
86 %
85 %
87 %
87 %
88 %
84 %
87 %
87 %
84 %
85 %
86 %
86 %
82 %
85 %
85 %
9 – 36 VDC
12 VDC
15 VDC
±5 VDC
±12 VDC
±15 VDC
3.3 VDC
5 VDC
9 – 36 VDC
533 mA
FEATURES
9 – 36 VDC
±800 mA
±333 mA
±267 mA
2400 mA
1600 mA
666 mA
9 – 36 VDC
◆Wide (4:1) Input Range
◆DIP-24 metal package style
◆1500VDC Isolation
9 – 36 VDC
18 – 75 VDC
18 – 75 VDC
18 – 75 VDC
18 – 75 VDC
18 – 75 VDC
18 – 75 VDC
18 – 75 VDC
43 – 160 VDC
43 – 160 VDC
43 – 160 VDC
43 – 160 VDC
43 – 160 VDC
43 – 160 VDC
43 – 160 VDC
12 VDC
15 VDC
±5 VDC
±12 VDC
±15 VDC
3.3 VDC
5 VDC
◆Operating Temperature: -40℃～﹢85℃
◆High efficiency up to 88 %
◆No minimum load required
◆3-year product warranty
533 mA
±800 mA
±333 mA
±267 mA
2400 mA
1600 mA
666 mA
12 VDC
15 VDC
±5 VDC
±12 VDC
±15 VDC
◆Internal SMD construction
◆RoHS Compliance
533 mA
±800 mA
±333 mA
±267 mA
◆MTBF>1000Khours
*Input voltage can’t exceed this value,or will cause the permanent damage.
MODEL SELECTION
⑥
①
②
③
④
⑤
WRB 24 12 Z D -8W(666)
General Specifications
①Product Series
③Output Voltage
②Input Voltage
④Wide (4:1) Input Range
Temperature ranges
– Operating
–40°C to +85°C
+105°C max.
–55°C to +125°C
3 %/K above +70°C
18.2°C/W
⑤DIP24 Package Style
⑥Rated Power(output current)
– Case temperature
– Storage
Power derating
Thermal impedance
– Natural convection
APPLICATIONS
– Natural convection with heat sink
15.8°C/W
The WRA-ZD-8W＆WRB-ZD-8W series is a
Humidity (non condensing)
Isolation voltage(60 sec.)
Isolation resistance
5 – 95 % rel. H max.
1500 VDC
family of high performance
8 Watt dc/dc
– Input / Output
– Input / Output
– Input / Output
converter modules featuring ultra wide 4:1 input
voltage ranges in DIP-24 package with
industry-standard footprint. Input voltages up to
160 VDC,excellent EMC characteristics and EN
50155 approval make this product the best
choice for many demanding applications in
railroad and transportation systems. Further
standard features include remote On/Off, over
voltage protection, under voltage lockout and
short circuit protection. Typical applications for
these converters are also in wireless networks,
telecom/data-com, industry control systems
and measurement equipments.
>1000 M Ohm
1500 pF max.
Isolation capacitance
Switching frequency
300 kHz typ.
http://microdc.cn/uploadfiles/WRA-ZD-8W&WRB-ZD-8W.PDF
UL/cUL 60950-1, IEC/EN 60950-1, EN 50155
Thermal shock, mechanical shock & vibration
– Test conditions
Safety standards
Safety approvals
– UL/cUL
– On:
Remote On/Off(According to
3.0 ... 12 VDC or open circuit
0 ... 1.2 VDC or short circuit pin 1 and pin 2/3
2.5 mA
– Off:
customer need to use)
– Off idle current:
Reliability, calculated MTBF(MIL-HDBK-217F, at +25°C, ground benign)
1 Mio. h
Environmental
– Reach
– RoHS
RoHS directive 2002/95/EC
Physical Specification
Casing material
Baseplate material
Potting material
Weight
copper, nickel plated
MICRODC RESERVES THE COPYRIGHT
non conductive FR4
metal (UL94V-0 rated)
18 g (0.63 oz)
Soldering temperature
max. 265°C / 10 sec.
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 1 of 4
WRA-ZD-8W＆WRB-ZD-8W Series
Input Specifications
Input current (no load)
9–36 Vin, 3.3 VDC & 5 VDC models:
40 mA typ.
9–36 Vin other models:
18–75 Vin, 3.3 VDC & 5 VDC models:
18–75 Vin other models:
25 mA typ.
20 mA typ.
13 mA typ.
43–160 Vin, 3.3 VDC & 5 VDC models:
43–160 Vin other models:
9–36 Vin models:
8 mA typ.
5 mA typ.
Input current (full load)
410 mA typ
18–75 Vin models:
210 mA typ
43–160 Vin models:
90 mA typ.
Input voltage variation (dv/dt)
Start-up voltage
5 V/ms, max.
(complies with ETS300 132 part 4.4)
9.0 VDC (or lower)
18 VDC (or lower)
43 VDC (or lower)
8.0 VDC typ.
16 VDC typ.
9–36 Vin models:
18–75 Vin models:
43–160 Vin models:
9–36 Vin models:
18–75 Vin models:
43–160 Vin models:
9–36 Vin models:
18–75 Vin models:
43–160 Vin models:
Under voltage shut down (lock-out circuit)
Surge voltage (100 msec. max.)
42 VDC typ.
50 V max.
100 V max.
170 V max.
Reflected ripple current
Conducted noise
20 mAp-p typ.
EN 55022 class A with external components
see application note:
ESD (electrostatic discharge)
Radiated immunity
EN 61000-4-2, air ±8 kV, contact ±6 kV,perf. criteria A
EN 61000-4-3, 20 V/m, perf. criteria A
Fast transient / surge (with external input
EN 61000-4-4, ±2 kV, perf. criteria A
EN 61000-4-5, ±2 kV perf. criteria A
capacitor)
– external input capacitor
24/48 Vin models:
110 Vin models:
Nippon chemi-con KY 220 µF, 100 V, ESR 48 mOhm
Nippon chemi-con KX J 150 µF, 200 V, ESR 48 mOhm
EN 61000-4-6, 10 Vrms, perf. criteria A
Conducted immunity
Output Specifications
Voltage set accuracy
Regulation
±1 %
– Input variation Vin min. to Vin max.
single output models:
0.2 % max.
0.5 % max.
1 % max.
– Load variation 0 – 100 %
dual output models:
– Load cross variation 25 % / 100 %
5 % max.
Minimum load
not required
±0.02 %/K
Temperature coefficient
Ripple and noise (20 MHz bandwidth)
24/48 Vin models:
110 Vin models:
50 mVp-p typ.
75 mVp-p typ.
450 ms typ.
5 ms typ.
Start up time
– Power On
(constant resistive load)
– Remote On
Transient Response(25% load step change)
Short circuit protection
250 µs typ.
indefinite (automatic recovery)
150 % of Iout max. typ.
3.9 V
Over load protection
Over voltage protection(only single output models)
3.3 V output:
5 V output:
6.2 V
12 V output:
15 V
15 V output:
18 V
Capacitive load
3.3 VDC & 5 VDC models:
12 VDC models:
15 VDC models:
±5 VDC models:
±12 VDC models:
±15 VDC models:
1330 µF
288 µF
200 µF
900 µF (each output)
133 µF (each output)
90 µF (each output)
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 2 of 4
WRA-ZD-8W＆WRB-ZD-8W Series
TEMPERATURE CHARACTERISTICS
TYPICAL CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
Max.
8
Units
W
Temperature Derating Graph
Output power
See below products program
0.8
Positive voltage accuracy
Negative voltage accuracy
Load regulation
Refer to recommended circuit
Refer to recommended circuit
Form 10% to 100% load
Input voltage from low to high
Refer to recommended circuit
20MHz Bandwidth
±1
±3
±3
%
±5
%
±0.5
±0.2
±0.02
20
±2*
±0.5
%
Line regulation
%
Temperature drift (Vout)
Ripple**
%/℃
mVp-p
mVp-p
KHz
50
Noise**
20MHz Bandwidth
50
100
Switching frequency
100% load, input voltage range
300
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.
Case material
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.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-8W&WRB_ZD-8W 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
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).
Output External Capacitor Table(Table 1)
Single Vout
Cout
Dual Vout
Cout
General:Ip≤1.6*Iin-max
(VDC)
(μF)
(VDC)
(μF)
3.3
5
2200
1000
470
±5
±12
±15
--
680
330
220
--
No parallel connection or plug and play
12
15
330
http://www.microdc.cn
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 3 of 4
WRA-ZD-8W＆WRB-ZD-8W Series
OUTLINE DIMENSIONS ＆ FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
* Remote on/off control pin(General,the product can
save this control pin, Only if customers have special
requirements)
Note:
Unit:mm[inch]
Pin section tolerances:±0.10mm[±0.004inch]
General tolerances:±0.25mm[±0.010inch]
Top view grid:2.54mm(0.1inch)
diameter:1.00mm(0.039inch)
FOOTPRINT DETAILS
TUBE OUTLINE DIMENSIONS
Pin
Single
Dual
1*
Remote On/Off
Remote On/Off
2、3
GND
NC
NC
+Vo
0V
GND
9
0V
11
-Vo
+Vo
14
16
0V
22、23
Vin
Vin
＊ This pin can be omitted.
NC:No connection
When the environment temperature is higher than 71℃,
the product output power should be less then 60% of
the rated power.
Note:
Unit :mm[inch]
No parallel connection or plug and play.
General tolerances:±0.50mm[±0.020inch]
L=530mm[20.866inch] Tube Quantity: 15pcs
L=220mm[8.661inch] Tube Quantity: 6pcs
Use dual output simultaneously,forbid pening output
pin (0V) to use as single output.
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 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:tech@microdc.cn Tel:0086-20-86000646
Page 4 of 4
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