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URF1D_QB-75W:Efficiency up to 91%

URF1D_QB-75W:Efficiency up to 91%
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URF1D_QB-75W Series75W, wide input voltage, isolated & regulated single output DC-DC converter Patent Protection RoHS FEATURES • Wide input voltage range: 66-160V • Efficiency up to 91% • Low no-load power • Isolation voltage 3000VDC • Operating temperature range: -40°C~+100°C • Input under-voltage protection, output over-voltage, over-current, short-circuit, over-temperature protection • International standard: 1/4 brick • Meets railway standard EN50155 URF iD_ QB -75W Series is a high performance product designed for the field of railway applications. The DC/DC con verters feature 75W output power, no min. load requirement, wide input voltage of'66-160VDC, And allow the high base plate temperature(up to I00°C). The products also provide input under-voltage protection, output over-voltage protection, short-circuit protection, over-temperature protection, remote control and compensation, output voltage regulation functions. The series meet railway standard EN50i55. And target railway system. Selection Guide Part No. Note: *Exceeding the maximum input voltage may cause permanent damage. Input Specifications MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO..LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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DC/DC Converter URF1D_QB-75W Series Output Specifications MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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DC/DC ConverterURF1D_QB-75W Series Efficiency Curves Physical Specifications MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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DC/DC Converter URF1D_QB-75W Series Sense of application and precautions 1. When not using remote sense +Vo sens e+ Trim sens e0V The le ad as s ho rt as po ss ible Short at pin root Notes： 1) When not using remote sense, make sure + Vo and Sense + are shorted, and that 0V and Sense- are shorted as well; 2) Keep the tracks between + Vo and Sense + and 0V and Sense- as short as possible. Avoid a looping track. If noise interferes the loop, the operation of the power module will become unstable. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final...

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DC/DC Converter URF1D_QB-75W Series 2. When Remote Sense is used A s far as po s sibl e u sin g t he twis te d pair +Vo sens e+ Trim sens e0V Using remote sense with long wires may cause output voltage to become unstable. Consult us if long sensing wiring is necessary. Sense tracks or wires should be as short as possible. If using wires, it should not use twisted-pair or shielded wires. Please use wide PCB tracks or a thick wires between the power supply module and the load, the line voltage drop should be kept less than 0.3V. Make sure the power supply module's output voltage remains...

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MORN SUN® 4. Thermal design The maximum operating temperature of base-plate TB is 100 °C, as long as the user's thermal system keeps TB <100 °C, the converter can deliver its full rated power. A power derating curve can be calculated for any heatsink that is attached to the base-plate of the converter. It is onen airflow rate. This information is usually available from the heatsink vendor. The following formula can the be used to determine the maximly necessary to determine the thermal resistance, Rth(B-A), of the chosen heatsink between the base-plate and the ambient air for a givum power...

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DC/DC Converter URF1D_QB-75W Series Calculation formula of Trim resistance: up: R T = Note： Value for R1, R2, R3, and Vref refer to the above table 1. RT: Resistance of Trim. a: User-defined parameter, no actual meanings. Vo’: The trim up/down voltage. 6. It is not allowed to connect modules output in parallel to enlarge the power 7. For more information please find the application notes on www.mornsun-power.com Dimensions and Recommended Layout (without heatsink) MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interp

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DC/DC ConverterURF1D_QB-75W SeriesDimensions and Recommended Layout(with heatsink) THIRD ANGLE PROJECTION • Front View Function Sense- Function Pin Trim Sense+ Mounting hole screwing torque: Max 0.4 Nm 2. Packing Information please refer to 'Product Packing Information'. Packing bag number: 58010113(without heatsink), 58220017(with heatsink); 3. Recommended used in more than 5% load, if the load is lower than 5%, then the ripple index of the product may exceed the specification, but does not affect the reliability of the product; 4. The max capacitive load should be tested within the...

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