K78UXX-500(L) Series Patent Protection RoHS Wide input non-isolated and regulated single output Selection Guide FEATURES High efficiency up to 95% Ultra-wide input voltage range up to 8:1 Operating ambient temperature range: -40 to +85 Pin-out compatible with LM78XX linear regulators Short-circuit protection, over-temperature protection Low output ripple & noise Ultra compact SIP package, meet UL94-V0 standards No heatsink required Industry standard pin-out MTBF>2,000,000 hours Input Voltage(VDC) Part Number Nominal Range 48 9.0~72.0 9.0~72.0 9.0~72.0 14.0~72.0 17.0~72.0 20.0~72.0 36.0~72.0 K78U03-500(L) K78U05-500(L) K78UX6-500(L) K78U09-500(L) K78U12-500(L) K78U15-500(L) K78U24-300(L) Output Specifications Item Voltage Accuracy APPLICATIONS Load Regulation* The K78UXX-500(L) series are high efficiency Ripple & Noise LM78XX series three-terminal linear regulators. The product is featured with ultra-wide input voltage range, high efficiency, low loss, low radiation and no heat sink requirement. MODEL SELECTION K78U05-500 Output Current Output Voltage Ultra Wide Input Voltage Product Series Address: No. 5, Kehui St. 1, Kehui Development Center, Science Ave., Guangzhou Science City, Huangpu District, Guangzhou, P. R. China Tel:86-20-38601850 Fax:86-20-38601272 E-mail:info@mornsun.cn www.mornsun-power.com Test conditions 100% load Input voltage variation from low to high at full load From 10% to 100% Load 20MHz bandwidth, from 10% to 100% Load (refer to figure 2 ) Short-circuit Input Power Vin=Nominal Consumption Short-circuit Protection Over-temperature Protection Switching Frequency 100% full load Output Current Limit Vin=Nominal Static Current Vin=Nominal , Min. Load Temperature Coefficient Dynamic Load From 10% to 100% Load Capacitive Load (F) Max. Vin (Min.) 82 87 91 92 93 94 95 Vin (Max.) 75 81 84 86 89 90 91 Min. -- Typ. 2 Max. 3 Units -- 0.4 1.0 % -- 0.3 0.6 -- 20 60 mVp-p -- 0.72 1.2 W Continuous, self-recovery -- 160 -- 120 ------ -700 1 --1.0 800 1200 5 0.015 100 1.5 kHz %/ mV ms -- -- 100 F Min. -- Typ. -- Max. 95 Units % -40 -- 85 -- 65 100 -55 -- 125 -- -- 300 mA Note: Pin of GND could not be left open, otherwise the module will be damaged. General Specifications Item Storage humidity Operating Temperature MORNSUN Science & Technology Co.,Ltd. Efficiency(%)(typ.) Current(mA) Min. Max. 10 500 10 500 10 500 10 500 10 500 10 500 6 300 Note: Add suffix "L" for 90 bend pins, for example: K78U05-500L. Linear Regulation switching regulators and ideal substitutes of Output Voltage (VDC) 3.3 5.0 6.5 9.0 12.0 15.0 24.0 Test conditions Derating when operating temperature up to 71 Operating Case Temperature Storage Temperature Pin Soldering Resistance Soldering spot is 1.5mm away Temperature from case for 10 seconds Cooling Method Case Material MTBF Hot Plug Thermal Impedance CE RE ESD Safety Certification Weight MIL-HDBK-217F@25 MIL-HDBK-217F@71 Refer to figure 5 The copyright and authority for the interpretation of the products are reserved by MORNSUN Free air convection plastic; flame-retardant and heat-resistant (UL94-V0) 3500 --k hours 1500 --Unavailable /W --60 EN55032, CLASS B IEC/EN 61000-4-2 level 4 EN-60950-1 -4.0 -g Specifications subject to change without notice. K78UXX-500(L) A/4-2019 Page 1 of 5 Typical Characteristic Curves Design Reference 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, hot plug is not available, if the input voltage changes from low to high abruptly, the regulator might be damaged. 2. If the application in high-voltage, the regulator must add an external capacitor C1(47F/100V) to prevent voltage spikes damage to the module. 3. The products do not support parallel connection of their output. Operating Temp.( C ) figure 1 Design Reference Modules Protection 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) C2 10 F GND +5V/850mA 1 +Vin +Vout GND GND 1 +Vin (figure 3) 3 2 GND Note: 1. The sum of the total input current of the post-stage regulator and the load current of the pre-stage regulator should be less than or equal to the maximum load current of the pre-stage regulator. 2. For further filtering, please add capacitors according to the above figure (this series is not recommended), if needed, please make sure C147F, C2 10F and make them as close as possible to the post-stage regulator. K78UXX-500(L ) K78UXX-500(L) 3 Schottky Diode 2 Vout= +Vout0.3V GND GND (figure4) EMC compliance circuit 0.5mH-2mH +Vin 1 +Vo u t Vin 3 GND 270 F-470F 2 1.0F-3.3 F RL 0.68F-2.2 F GND 0.5mH-2mH (figure 5) Test Configurations (TA=25C) 1FULL LOAD OUTPUT RIPPLE & NOISE MEASURED GRAPH 2LOAD 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/4-2019 Page 2 of 5 Typical Characteristics Curves Efficiency The copyright and authority for the interpretation of the products are reserved by MORNSUN Ripple Specifications subject to change without notice. K78UXX-500(L) A/4-2019 Page 3 of 5 Outline Dimensions & Footprint Details MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT K78UXX-500 K78UXX-500 0.50 [0.020] (Front View) 17.50 [0.689] 1.00[0.039] 1 2 3 4.10 [0.161] K78UXX-500L 11.50 [0.453] 9.00 [0.354] 2.15 [0.085] 1 2 3 3 2 1 0.50[0.020] 5.08 [0.200] 1.00[0.039] 0.55 [0.022] Note: grid:2.54*2.54mm. (Bottom Vi ew) FOOTPR IN T D ETAIL S Note: Unit:mm[inch] Pin section tolerances:0.10mm[0.004inch] General tolerances:0.25mm[0.010inch] Pin 1 Function +Vin 2 3 GND +Vout TUBE OUTLINE DIMENSIONS 2 3 11.40 [0.449] 20.40 [0.803] 11.60 [0.457] 11.00 [0.433] 16.00 [0.630] 6.60 [0.260] 0.55 [0.022] 5.08 [0.200] (Bottom Vi ew) Note: Unit:mm[inch] Pin section tolerances:0.10mm[0.004inch] General tolerances:0.25mm[0.010inch] 4.20 [0.205] 0.50 [0.020] 1 4.10 [0.161] 11.50 [0.453] K78UXX-500L 23.40 [0.921] (Front View) K78UXX-500 27.10 [1.067] 0.3 0[0.01 2] 17.5 0[0.68 9] 1 9.00[0 .748] 9.00 [0.354] 20.60 [0.811] K78UXX-500L 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(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 Note: 1.We suggested to use module at load of over 10%, and the external capacitor for output should not be too large (recommend <10F), otherwise ripple will increase dramatically; 2.If the product is not operated within the required load range, the product performance cannot be guaranteed to comply with all parameters in the datasheet, but does not damage the product; 3.Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25, humidity<75%RH with nominal input voltage and rated output load; 4. All index testing methods in this datasheet are based on our company corporate standards; 5.Products are related to laws and regulations: see "Features" and "General Specifications"; 6.Our products shall be classified according to ISO14001 and related environmental laws and regulations, and shall be handled by qualified units. The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice. K78UXX-500(L) A/4-2019 Page 4 of 5