WRN78UXX-500(B) Series WIDE INPUT NON NON--ISOLATED & REGULATED SINGLE OUTPUT Product Program Input Voltage(VDC) Part Number FEATURES Efficiency up to 97% ◆ Ultra wide input voltage range can up to 8:1 ◆ Output (%,Typ) Efficiency Efficiency(%,Typ) Voltage Current Current Vin Vin (VDC) Min. (MA) (MA)Min. Max. (MA) (MA)Max. (min.) (max.) 9~72 3.3 10 500 82 75 9~72 05 10 500 87 81 48 9~72 6.5 10 500 91 84 WRN78U09-500 48 14~72 09 10 500 92 86 WRN78U12-500 48 17~72 12 10 500 93 89 Nominal Range WRN78U03-500 48 WRN78U05-500 48 WRN78U6.5-500 WRN78U15-500 48 20~72 15 10 500 94 90 Operating temperature: -40°C ~ +85°C WRN78U24-300 48 36~72 24 10 300 95 91 Short circuit protection, thermal shutdown WRN78U03-500B 48 9~72 3.3 10 500 82 75 WRN78U05-500B 48 9~72 05 10 500 87 81 WRN78U6.5-500B 48 9~72 6.5 10 500 91 84 WRN78U09-500B 48 14~72 09 10 500 92 86 WRN78U12-500B 48 17~72 12 10 500 93 89 WRN78U15-500B 48 20~72 15 10 500 94 90 WRN78U24-300B 48 36~72 24 10 Add suffix "B" for 90°bend pins, for example: WRN78U05-500B. 300 95 91 ◆ ◆ Low ripple and noise ◆ Micro miniature SIP package ◆ ◆ No heat sink required ◆ Industry standard pin out MTBF>2,000,000 hours ◆ OUTPUT SPECIFICATION SPECIFICATIONS S Item Test conditions Min. Typ. Max. Output voltage accuracy 100% full load ±2 ±3 MODEL SELECTION Line regulation Vin=min. to max. at full load ±0.4 ±1.0 ① ② ③ ④ ⑤ WR WRN78 N78 U 05 -500 (B) Load regulation 10% to 100% load ±0.3 ±0.6 Ripple & Noise 20MHz bandwidth (refer to figure 2) Short circuit input power* Vin=Nominal ①Product Series ②Ultra Wide (8:1) Input Range ③Output Voltage ④Output Currents ⑤Bend 90°pin Short circuit protection The switching WRN78Uxx-500(B) regulators are 60 mVp-p 0.72 1.2 W 100% full load Output current limit Vin=Nominal Quiescent current Vin=Nominal , Min. Load 120 high suited efficiency to replace WRN78xx linear regulators and are pin compatible. The efficiency of up to 97% means that very little energy is ℃ 800 700 1200 1 5 ±100 From 10% to 100% Load 1.0 series ideally 20 160 Switching frequency Temperature coefficient % Continuous, automatic recovery Thermal shutdown Tendencies load APPLICATIONS Units -40℃ ~ +85℃ ambient Max capacitance load KHz mA mV 1.5 ms ±0.015 %/℃ 100 µF NOTE:”GND” Pin can not vacant,or it will damage the module. COMMON SPECIFICATION SPECIFICATIONS S wasted as heat so there is no need for any heat sinks with Item their additional space and mounting costs. Storage humidity Operating temperature Test conditions Power derating (above 71℃) Min. -40 Operating case temp. -55 Units 95 % 100 ℃ 125 1.5mm from case for 10 seconds 300 Cooling Free air convection Case material MTBF Max. 85 65 Storage temperature Lead temperature Typ. Plastic (UL94-V0) 25℃（MIL-HDBK-217F） 3500 71℃（MIL-HDBK-217F） 1500 Hop swap k hours Not supported Thermal resistance 60 ℃/W MICRODC RESERVES THE COPYRIGHT Weight http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 4 Page 1 of 4 g WRN78UXX-500(B) Series TYPICAL CHARECTERISTICS TYPICAL APPLICATION CIRCUIT Note: 1.The regulator proposed to establish the input voltage by soft-start, no plug and play, if the input voltage changes from low voltage to high voltage abruptly, the regulator might be damaged. 2. If the applications is high-voltage input,the regulator must add an external capacitor C1(≤47μF/100V),to prevent voltage spikes caused by damage to the module. 3. No parallel connection. APPLICATION EXAMPLE MODULES PROTECT RECOMMENDED CIRCUIT High voltage input, Multiple Outputs, with greater load Note: 1. the input current amount of the back-grade regulator and the pre-class load should be less than or equal the max load current of the pre-class regulator. 2. If further filtering is required, please add components as per the above circuit(We recommend not to add components), if request, please make sure the capacitors C1≤47μF,C2≤10μF more close to the back-grade regulator. TEST CONFIGURATIONS (TA=25 (TA=25℃ ℃) 1 FULL LOAD OUTPUT RIPPLE & NOISE MEASURED GRAPH http://www.microdc.cn 2 LOAD TRANSIENT RESPONSE WAVEFORM Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 4 WRN78UXX-500(B) Series EMC RECOMMENDED CIRCUIT (figure 5) OUTPUT RIPPLE REDUCTION Efficiency http://www.microdc.cn Ripple Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 3 of 4 WRN78UXX-500(B) Series OUTLINE DIMENSIONS & FOOTPRINT DETAILS MECHANICAL DIMENSIONS 78 UXX500 WRN WRN78 78U XX-5 RECOMMENDED FOOTPRINT WRN78UXX-500 WRN78UXX-500B Note: Unit:mm[inch] Pin section tolerances: ±0.10mm[±0.004inch] General tolerances: ±0.25mm[±0.010inch] 78 UXX500 B WRN WRN78 78U XX-5 00B TUBE OUTLINE DIMENSIONS 78 UXX500 WRN WRN78 78U XX-5 78 UXX500 B WRN WRN78 78U XX-5 00B Note: Unit :mm[inch] General tolerances:±0.50mm[±0.020inch] L=530mm[20.866inch] Note: L=220mm[8.661inch] Unit:mm[inch] Pin section tolerances:±0.10mm[±0.004inch] General tolerances:±0.25mm[±0.010inch] Devices per tube quantity: 44pcs Devices per tube quantity: 17pcs 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): L*W*H=600*215*220mm Long tube outer packaging dimensions(with three inner packaging boxes): L*W*H=600*215*325mm http://www.microdc.cn Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 4 of 4