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.) Nominal Range (VDC) Max. FEATURES WRB2403ZS-3W 24 9-36 3.3 700 81 ◆Wide (4:1) Input Range WRB2405ZS-3W 24 9-36 5 600 83 ◆Short Circuit Protection(automatic recovery) WRB2412ZS-3W 24 9-36 12 250 74 ◆1500VDC Isolation WRB2415ZS-3W 24 9-36 15 200 76 WRA2405ZS-3W 24 9-36 ±5 ±300 81 WRA2412ZS-3W 24 9-36 ±12 ±125 81 WRA2415ZS-3W 24 9-36 ±15 ±100 85 WRB4803ZS-3W 48 18-75 3.3 700 83 WRB4805ZS-3W 48 18-75 5 600 85 WRB4812ZS-3W 48 18-75 12 250 74 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 ◆Operating Temperature: -40℃～﹢85℃ ◆Excellent load and line regulation ◆Ultra-compact SIP-8 packaged ◆Internal SMD construction ◆Remote On/Off control ◆Small footprint:21.8*9.2mm ◆Excellent load and line regulation MODEL SELECTION 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 APPLICATIONS NOTE: Case material:non-conductive plastic Weight: 4.8g (0.17oz) Input Specifications 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. Parameter Input current at full load Conditions Max. 24Vin models: 170mAmax. 48 Vin models: 85mAmax. Surge voltage 24 Vin models: 50Vmax. (100 msec. max.) 48 Vin models: 100Vmax. Input current at no load 24 Vin models: 25mA typ. Input filter 48 Vin models: typ.level A EN 55022 level A, FCC15mA part 15, 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 effciency allows –40 40°° to +85 +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 MICRODC reserves the copyright for many space critical applications in battery-powered equipment and instrumentation. http://www.microdc.cn 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 Case materi All specifcations valid at nominal input voltage, full load and +25 +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 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 Note: L=220mm[8.661inch] Tube Quantity:8pcs 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