WRA-ZS-3W

WRA-ZS-3W&WRB-ZS -3W Series
3W, WIDE INPUT, ISOLATED & REGULATED DUAL/SINGLE OUTPUT DC
DC--DC CONVERTER
SELECTION GUIDE
Input
Output
Efficiency
Order code
Voltage(VDC)
Voltage
Current(mA)
(%.Typ.)
FEATURES
Wide (4:1) Input Range
Nominal
Range
(VDC)
Max.
WRB1203ZS-700
12
4.5-18
3.3
700
81
WRB2403ZS-700
24
9-36
3.3
700
81
WRB2403ZS-3W
24
9-36
3.3
700
81
WRB2405ZS-3W
24
9-36
5
600
83
WRB2412ZS-3W
24
9-36
12
250
74
WRB2415ZS-3W
24
9-36
15
200
76
WRA2405ZS-3W
24
9-36
±5
±300
81
WRA2412ZS-3W
24
9-36
±12
±125
81
◆
Short Circuit Protection(automatic recovery)
◆
1500VDC Isolation
◆
Operating Temperature: -40℃~﹢85℃
◆
Excellent load and line regulation
◆
Ultra-compact SIP-8 packaged
◆
Internal SMD construction
◆
WRA2415ZS-3W
24
9-36
±15
±100
85
Remote On/Off control
WRB4803ZS-3W
48
18-75
3.3
700
83
Small footprint:21.8*9.2mm
WRB4805ZS-3W
48
18-75
5
600
85
Excellent load and line regulation
WRB4812ZS-3W
48
18-75
12
250
74
MODEL SELECTION
WRB4815ZS-3W
48
18-75
15
200
78
WRA4805ZS-3W
48
18-75
±5
±300
80
WRA4812ZS-3W
48
18-75
±12
±125
80
WRA4815ZS-3W
48
18-75
±15
±100
85
◆
◆
◆
①
②
③ ④
⑤
⑥
WRB 24 12 Z S -3W
①Product Series
②Input Voltage
③Output Voltage
④Wide (4:1) Input Range
⑤SIP Package Style ⑥ Rated Power
NOTE:
Case material:non-conductive plastic
Weight: 4.8g (0.17oz)
APPLICATIONS
The WRA_ZS-3W&WRB_ZS-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 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 Specifications
Parameter
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Max.
24Vin models:
170mAmax.
48 Vin models:
85mAmax.
Surge voltage
24 Vin models:
50Vmax.
(100 msec. max.)
48 Vin models:
100Vmax.
24 Vin models:
25mA typ.
48 Vin models:
15mA typ.
Input current at full load
Input current at no load
Input filter
MICRODC RESERVES THE COPYRIGHT
Conditions
EN 55022 level A, FCC part 15, level A with external capacitor
The WR-ZS-3W series is a new family of isolated 3W DC/DC converters with
regulated output, featuring ultra-wide 4:1 input voltage range.The product
comes in a ultra-compact SIP plastic package with a small footprint occupying
only 2.0 cm2 (0.3 square in.) of board space. An excellent efficiency allows
–40° to +85°C operation temperatures.
Further features include remote On/Off control and continuous short circuit
protection. The very compact dimensions of these converters make them an
ideal solution for many space critical applications in battery-powered
equipment and instrumentation.
Order code Input voltage Output voltage Output current max. Effie
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 1 of 3
WRA-ZS-3W&WRB-ZS -3W Series
Output Specifications
Parameter
Conditions
Voltage set accuracy
Regulation
± 1 % max
– Input variation
Vin min. to Vin max.
– Load variation 5 – 100%
0.2 % max.
single output models:
1.0% max.
dual output models:
1.0 % max. balanced load
– Load cross regulation 25/100%
5.0 % max. (dual output models)
Minimum load
not required
Temperature coefficient
0.1 %/K
30 mVpk-pk max.
Ripple and noise (20 MHz Bandwidth)
Start up time
(constant resistive load)
– Power On
30 ms typ.
– Remote On
30 ms typ.
Transient response setting time
500 µs typ
(25% load step change)
Temperature coefficient
± 0.1 %/°C
Short circuit protection
continuous, automatic recovery
Capacitive load
3.3 VDC output models:
1‘760 µF max.
5 VDC output models:
1’000 µF max.
12 VDC output models:
170 µF max.
15 VDC output models:
110 µF max.
±5 VDC output models:
± 470 µF max.
±12 VDC output models:
± 100 µF max.
±15 VDC output models:
± 47 µF max.
Casematerial
General Specifications
Parameter
Temperature ranges
Conditions
– Operating
– 40 °C~ + 85 °C (no derating)
– Case temperature
+100 °C max.
– Storage
– 55 °C ~ + 125 °C
Load derating
3.5 %/K above 70°C
Humidity (non condensing)
95 % rel. H max.
Reliability, calculated MTBF
>1.7Mio h @ 25°C
(MIL-HDBK-217F ground benign)
Isolation voltage (60 sec)
– Input/Output
1’500 VDC
Isolation capacity
– Input/Output
200 pF max.
– Input/Output (500 VDC)
>1 GOhm
Isolation resistance
Switching frequency
Remote On/Off
100 kHz (PWM)
– On:
open or high impedance
– Off:
2...4 mA current applied via 1KOhm resistor
– Off stand by input current
2.5 mA max.
Vibration and thermal shock
MIL-STD-810E
Safety standards
Safety approvals
UL /cUL 60950-1, EN 60950-1, IEC 60950-1
– UL/cUL
pending
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
http://www.microdc.cn
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 2 of 3
WRA-ZS-3W&WRB-ZS -3W Series
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT
RECOMMENDED FOOTPRINT
Top view grid:2.54mm(0.1inch)
diameter:1.00mm(0.039inch)
Note:
Unit:mm[inch]
Pin section tolerances:±0.10mm[±0.004inch]
General tolerances:±0.25mm[±0.010inch]
TUBE OUTLINE DIMENSIONS
FOOTPRINT DETAILS
Pin
Single
Dual
1
-Vin(GND)
-Vin(GND)
2
+Vin(Vcc)
+Vin(Vcc)
3
Remote On/Off
Remote On/Off
5
No function
No function
6
+Vout
+Vout
7
-Vout
Common
8
No function
-Vout
Note:specifications can be changed any time without notice.
When the environment temperature is higher than 71℃, the
product output power should be less then 60% of the rated
power.
No parallel connection or plug and play.
Note:
Unit :mm[inch]
General tolerances:±0.50mm[±0.020inch]
L=530mm[20.866inch] Tube Quantity: 22pcs
L=220mm[8.661inch] Tube Quantity:8pcs
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:[email protected] Tel:0086-20-86000646
Page 3 of 3