K78UXX-500(L) Series RoHS WIDE INPUT NON-ISOLATED & REGULATED SINGLE OUTPUT PRODUCT PROGRAM FEATURES Input Voltage(VDC) ● Efficiency up to 95% Part Number ● Ultra wide input voltage range can up to 8:1 ● Operating temperature: -40°C ~ +85°C ● Pin-out compatible with LM78XX Linear ● Short circuit protection, thermal shutdown Nominal Output Voltage Range (VDC) Efficiency(%)(typ.) Current(mA) Min. Max. Vin Vin (Min.) (Max.) K78U03-500(L) 9.0~72.0 3.3 10 500 82 75 K78U05-500(L) 9.0~72.0 5.0 10 500 87 81 84 ● Low ripple and noise K78UX6-500(L) ● Micro miniature SIP package, meet UL94-V0 K78U09-500(L) 9.0~72.0 6.5 10 500 91 14.0~72.0 9.0 10 500 92 86 K78U12-500(L) 17.0~72.0 12.0 10 500 93 89 ● No heatsink required K78U15-500(L) 20.0~72.0 15.0 10 500 94 90 ● Industry standard pinout K78U24-300(L) 36.0~72.0 24.0 6 300 95 91 requirement 48 Note: Add suffix “L” for 90° bend pins, for example: K78U05-500L. ● MTBE>2,000,000Hours OUTPUT SPECIFICATIONS Item Test conditions Min. Typ. Max. Units ±2 ±3 Line regulation Vin=min. to max. at full load ±0.4 ±1.0 Load regulation* From 10% to 100% Load ±0.3 ±0.6 Ripple& Noise 20MHz bandwidth ,from 10% to 100% Load (refer to figure 2 ) 20 60 mVp-p 0.72 1.2 W Output voltage accuracy 100% full load % APPLICATIONS The K78UXX-500(L) series high efficiency Short circuit input power Vin=Nominal switching regulators are ideally suited to replace Short circuit protection LM78xx linear regulators and are pin compatible. It Thermal shutdown has ultra wide input voltage range ,the efficiency of Switching frequency 100% full load up to 95% means that very little energy is wasted Output current limit Vin=Nominal as heat so there is no need for any heatsinks with Quiescent current Vin=Nominal , Min. Load their additional space and mounting costs. Temperature coefficient -40°C ~ +85°C ambient Tendencies load Continuous, automatic 120 800 700 1200 1 5 From 10% to 100% Load MODEL SELECTION Note: ”GND” Pin can not vacant, or it will damage the module. K78U05-500 COMMON SPECIFICATIONS Output Voltage Ultra Wide Input Voltage Pr oduct Ser ies Item Test conditions 1.0 Min. Power derating (above 71°C) -40 65 Storage temperature -55 Address: No. 5, Kehui St. 1, Kehui development center, Science Ave., Guangzhou Science City, Luogang district, Guangzhou,P.R.China. Tel: 86-20-28203030 Fax:86-20-28203068 Http://www.mornsun-power.com 1.5 ms 100 μF Max. Units 95 % 100 °C 300 Plastic (UL94-V0) 25℃（MIL-HDBK-217F） 3500 71℃（MIL-HDBK-217F） 1500 Hop swap k hours Not supported Thermal resistance EMI conducted mV Free Air Convection Case material MTBF ±100 125 1.5mm from case for 10 seconds Cooling mA 85 Operating case temp. Lead temperature MORNSUN Science & Technology Co.,Ltd. Typ. Storage humidity Operating temperature kHz ±0.015 %/°C Max capacitance load Output Cur rent °C 160 60 Refer to figure 5 EN55022, CLASS B RFI conducted Electrostatic discharge IEC/EN 61000-4-2 level 4 Safety approvals EN-60950-1 standards Weight The copyright and authority for the interpretation of the products are reserved by MORNSUN °C/W 4 Specifications subject to change without notice. K78UXX-500(L) A/1-2011 Page 1 of 4 g TYPICAL CHARECTERISTICS TYPICAL APPLICATION CIRCUIT Temperature Derating Graph 1 +Vin K78UXX-500(L) 3 +Vout 2 C1 GND GND （figure 2） 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. Operating Temp.( C ) （figure 1） APPLICATION EXAMPLE MODULES PROTECT RECOMMENDED CIRCUIT High voltage input, Multiple Outputs, with greater load Reverse protection 1 +Vin C1 K78U12-500(L) 3 +12V/100mA 2 K7805-1000(L) K78 UXX-500(L ) 3 +Vout 2 +5V/850mA C2 1 0 μF GND 1 +Vin GND GND GND (figure 3) 1 +Vin 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. K78 UXX-50 0(L) 2 3 Schottky Diode Vout= +Vout0.3V GND GND (figure4) EMC RECOMMENDED CIRCUIT 0.5mH-2mH 1 +Vin +Vo ut Vin 3 GND 2 270μ F-470μF 1.0μF-3.3μ F RL 0.68μF-2.2μ F GND 0.5mH-2mH (figure 5) TEST CONFIGURATIONS (TA=25°C) 1、FULL LOAD OUTPUT RIPPLE & NOISE MEASURED GRAPH 2、LOAD TRANSIENT RESPONSE WAVEFORM (figure 6) The copyright and authority for the interpretation of the products are reserved by MORNSUN (figure 7) Specifications subject to change without notice. K78UXX-500(L) A/1-2011 Page 2 of 4 CHARACTERISTICS CURVE Efficiency Ripple Efficiency VS Input Voltage curve (full load) Ripple VS Load curve(Vin=Vmax) 100 30 95 K78U03-500 K78U05-500 K78UX6-500 K78U09-500 K78U12-500 K78U15-500 K78U24-300 85 80 75 70 65 60 25 Ripple(mV) Efficiency(%) 90 K78U03-500 K78U05-500 K78UX6-500 K78U09-500 K78U12-500 K78U15-500 K78U24-300 20 15 10 5 55 50 0 9 15 21 27 33 39 45 51 57 63 69 72 0 10 20 30 Input Voltage(V) Efficiency 40 50 60 70 80 90 100 Load(%) VS Load curve(Vin=Vin-nominal) Ripple VS Load curve(Vin=Vin-nominal) 100 30 95 K78U03-500 K78U05-500 K78UX6-500 K78U09-500 K78U12-500 K78U15-500 K78U24-300 85 80 75 70 65 25 Ripple(mV) Efficiency(%) 90 K78U03-500 K78U05-500 K78UX6-500 K78U09-500 K78U12-500 K78U15-500 K78U24-300 20 15 10 60 5 55 50 10 20 30 40 50 60 70 80 90 0 100 0 10 20 30 Load(%) 50 60 70 80 90 100 Load(%) Ripple VS Load curve(Vin=Vmin) Efficiency VS Load curve(Vin=Vmin) 100 95 30 90 85 K78U03-500 K78U05-500 K78UX6-500 K78U09-500 K78U12-500 K78U15-500 K78U24-300 80 75 70 65 60 55 50 25 Ripple(mV) Efficiency(%) 40 K78U03-500 K78U05-500 K78UX6-500 K78U09-500 K78U12-500 K78U15-500 K78U24-300 20 15 10 5 10 20 30 40 50 60 70 80 90 100 0 0 10 Load(%) The copyright and authority for the interpretation of the products are reserved by MORNSUN 20 30 40 50 60 70 80 90 100 Load(%) Specifications subject to change without notice. K78UXX-500(L) A/1-2011 Page 3 of 4 OUTLINE DIMENSIONS & FOOTPRINT DETAILS MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT K78UXX-500 K78UXX-500 5.08 [0.200] 1.10 [0.043] 9.00 [0.354] 0.50 [0.020] 3 2.54 [0.100] K78UXX-500L 5.08 [0.200] 17.50 [0.689] 2 2.54 [0.100] 1 2.15 [0.085] 11.50[0.453] 4.10 [0.161] 1.35 [0.053] 5.08 [0.200] ( Bottom View) 1 2 0.50 [0.020] 3 1.10 [0.043] FOOTPRINT DETAILS 0.55 [0.022] pin Function 1 +Vin Note : Unit: mm[inch] Pin section tolerances: ± 0.10mm[±0.004inch] General tolerances : ±0.25mm[±0.010inch] 2 GND 3 +Vout TUBE OUTLINE DIMENSIONS K78UXX-500L 11.50[0.453] K78UXX-500L K78UXX-500 9.00 [0.354] 11.60 [0.457] 5.08 [0.200] 2.15 [0.085] ( Bottom View) 20.60 [0.811] 5.20 [0.205] 1.50 [0.059] 4.10[0.161] 20.20 [0.795] 17.50 [0.689] 26.20 [0.031] 0.50 [0.020] 11.20 [0.441] 23.60 [0.929] 2.15 [0.085] 0.60 [0.024] 11.20 [0.441] 16.20 [0.638] 1 2 6.20 [0.244] 3 Note : Unit: mm[inch] Pin section tolerances:±0.10mm[±0.004inch] General tolerances : ±0.50mm[±0.020inch] Note: Unit: mm[inch] General tolerances : ±0.50mm[±0.020inch] L=530mm[20.866inch] Devices per tube quantity : 44pcs L=220mm[8.661inch] Devices per tube quantity : 17pcs Short tube inner packaging dimensions: L*W*H=255*170*80mm Short tube outer packaging dimensions: 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 two inner packaging boxes): L*W*H=600*215*325mm Note: 1. The load shouldn't be less than 10%, and the output external capacitor should not be too large (recommend <10μF), 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. The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice. K78UXX-500(L) A/1-2011 Page 4 of 4