WRN78XXM-1000 Series NONISOLATED REGULATED SINGLE OUTPUT SIP WIDE INPUT, INPUT,NONNON-ISOLATED SIP33 DC/DC CONVERTER SELECTION GUIDE Input Part Number Output Efficiency(%,Typ) Voltage Range Voltage Current (VDC) (VDC) (MA) WRN781.5M-1000 4.75-18 1.5 WRN781.8M-1000 4.75-18 WRN782.5M-1000 4.75-18 Efficiency up to 93% WRN7803M-1000 Operating tem.range:-40°C ~ 85°C WRN7805M-1000 Pin-out compatible with WRN78XX linear OUTPUT SPECIFICATION SPECIFICATIONS S Short circuit protection,Thermal Shutdown ltem Test conditions Output Voltage accuracy 100% full load,input voltage range Line regulation Vin= min. to max. at full load ±0.5 ±1.0 % 25 45 mVp-p FEATURES ◆ ◆ ◆ ◆ Vin(min) Vin(max) 1000 78 72 1.8 1000 82 76 2.5 1000 87 82 4.75-20 3.3 1000 90 83 6.5-20 5.0 1000 93 85 Min. ◆ Low ripple and noise ◆ Micro miniature SIP3 package,meet Load regulation 10% to 100% load UL94-Vo requirement Ripple＆Noise* 20MHZ Bandwidth (refer to figure 3) Short Circuit protection No heatsink required Thermal Shutdown Industry standard pinout Output current limit ◆ ◆ ◆ Units ±2 ±3 % ±0.5 ±0.75 % Internal IC junction Full load,input voltage range 335 150 °C 3000 mA 385 Dynamic load stability MODEL SELECTION WR WRN78 N78①05②M③-1000④ ①Product Series ③Miniature SIP3 Package Max. Continuous, automatic recovery Switching frequency MTBE>2000KHours Typ. ②Output Voltage ④Output Current Quiescent current Vin from min to max and at 0% load Temperature coefficient -40 °C ~ +85 °C ambient 435 KHZ ±100 mV 10 mA ±0.02 %/℃ 1000 µF 7 Max capacitance load *WRN7803M-1000 is ±3.5%(MAX) COMMON SPECIFICATION SPECIFICATIONS S ltem DESCRIPTION Test conditions Min. Typ. Max. Units 95 % Storage Humidity Range Operating Temp. Range The WRN78xxM-1000 Series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. The efficiency of up to 93% means that very little energy is wasted as heat so there is no need tor any heat sinks with their additional space and mounting costs. Storage Temp. Range -40 85 -55 125 Operating Case Temp. ℃ 100 Lead Temperature 1.5mm from case for 10 seconds 300 Cooling Free Air Convection Case Material MTBF PRODUCT ID DESCRIPTION Power derating (above 71℃) Plastic (UL94-V0) (25°C MIL-HDBK-217F ) 2000 Weight K hours 2.0 g Note: 1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. Only typical models listed. If you need other model, please confirm the power, input voltage and output voltage, then phone us. MICRODC R ESERVES THE COPYRIGHT http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 1 of 4 WRN78XXM-1000 Series TYPICAL CHARACTERISTICS Temperature Derating Graph EXTERNAL CAPACITOR TABLE Part Number C1,C3 (ceramic capacitor) C2,C4 (ceramic capacitor) WRN781.5M-1000 10uF/25V 22uF/6.3V WRN781.8M-1000 10uF/25V 22uF/6.3V WRN782.5M-1000 10uF/25V 22uF/10V WRN7803M-1000 10uF/25V 22uF/16V WRN7805M-1000 10uF/25V 22uF/16V (figure 1) TYPICAL APPLICATION CIRCUIT (figure 2) Note: 1.C1 and C2 are required and should be fitted close to the converter pins. 2.The capacitance of C1,C2 sees external capacitor table,it can be increased properly if required,and tantalum or low ESR Electrolytic capacitors may also suffice. 3.No parallel connection or plug and play. TEST CONFIGURATIONS (TA=25 (TA=25℃ ℃) 1 Efficiency and Output Voltage Ripple Test (figure 3) 2 Start-up and Load Transient Response Test (figure 4) The copyright and authority for the interpretation of the products are reserved by MICRODC http://www.microdc.cn Specifications subject to change without notice Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 4 WRN78XXM-1000 Series OUTPUT RIPPLW REDUCTION To reduce output ripple,it is recommended to add a LC filter in output port µH~47 µH. L:Recommended parameter 10 10µ H~47µ (figure 5) CHARACTERISTICS Ripple Efficiency Ripple(mV) Efficiency Efficiency VS Vin(Full Load) Ripple VS Vin(Full load) Ripple(mV) Efficiency Efficiency VS Load(Vin=Vin-nominal) http://www.microdc.cn Ripple VS Load(Vin=Vin-nominal) Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 3 of 4 WRN78XXM-1000 Series OUTLINE DIMENSIONS & FOOTPRINT DETAILS Mechanical Dimensions Recommended Footprint Note:grid 2.54*mm Tube Outline Dimensions Note: FOOTPRINT DETAILS Pin Function 1 +Vin 2 GND 3 +Vout Unit:mm[inch] General tolerances:±0.50mm:[0.020inch] L=530mm[20.866inch] Packaging quantity:43 pcs L=220mm[8.661inch] Packaging quantity:17 pcs Short tube inner packaging dimensions:L*W*H=255*170*80mm Short tube outer packaging dimensions(with six inner packaging boxes): L*W*H=375*280*270mm; Long tube inner packaging dimensions:L*W*H=580*200*100mm; Long tube outer packaging dimensions(with two inner packaging boxes): Note: Unit:mm[inch] Pin section tolerances:±0.10mm[±0.004inch] General tolerances:±0.25mm[±0.010inch] L*W*H=600*215*220mm; Short tube outer packaging dimensions(with three inner packaging boxes): L*W*H=600*215*325mm; Note: 1.All specifications measured at Ta=25℃, humidity<75%,nominal input voltage and rated output load unless otherwise specified. 2.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 4 of 4