Catalog excerpts
LH20(25) Series 20(25)W, AC-DC converter FEATURES • Universal Input: 85 - 264VAC/100 - 370VDC • Regulated output, low ripple & noise • High efficiency up to 87% • Output short circuit, over-current, over-voltage, protection • Plastic case, meets UL94V-0 • IEC60950, UL60950, EN60950 approval • Mounting: PCB mounting, Chassis mounting, DIN-Rail mounting available LH20-25series —a compact size power converter offered by Mornsun. it features universal input voltage, taking both DC and ACinput voltage, low power consumption, high efficiency, high reliability, safer Isolation, it offers good EMC performance, which meet IEC/EN6100— C/SPR22/EN55022, UL60950and EN60950standards, andit's widely usedinindustriai, office and civil applications. For harsh EMC environment, the application circuit in the datasheet is strongly recommended. Note: *About LH20-10AXX, use both positive and negative output as sampling feedback; and all others use Vo1 as sampling feedback. MORNSUN GUANGZHOU 5CIGNCG & TGCHNOLOGY CO.,LTD. 2017.02.21-C/1 Page 1 of 8 MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Open the catalog to page 1AC/DC Converter LH20(25) Series Input Specifications MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Open the catalog to page 2AC/DC ConverterLH20(25) Series Welding Temperature Input Voltage Note: ®When input 85-100VAC/240-264VAC/100-120VDC/340-370VDC, it need to be voltage derated on basis of temperature derating; ©This product is suitable for use in natural air cooling environments, if in a closed environment, please contact our company's FAE. MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Open the catalog to page 3AC/DC ConverterLH20(25) Series Model Note: Output filtering capacitors C2, C4, C6 are electrolytic capacitors, it is recommended to use high frequency and low impedance electrolytic capacitor. For capacitance and current of capacitor please refer to manufacture's datasheet. Capacitor voltage reduced to at least 80%. C1, C3, C5 are ceramic capacitors, which is used to filter high-frequency noise. TVS is a recommended component to protect post-circuits if converter fails. External input NTC is recommended to use 5D-9. External input MOV model is recommended to use S14K300. MORN5UN GUANGZHOU...
Open the catalog to page 4Element model 3. Application of Trim and calculation of Trim resistance Calculation formula of Trim resistance: aR2 up: Rt= -R3 a= Vot-Vref Vref Rt is Trim resistance a is a self-defined parameter, with no real meaning. Applied circuits of Trim (Part in broken line is the interior of models): 4. For more information, Please find the application note on www.mornsun-power.com MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Open the catalog to page 5Front View THIRD ANGLE PROJECTION MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Open the catalog to page 6THIRD ANGLE PROJECTION Front View Unit: mm[inch] Mounting rail: TS35, rail needs to connect safety ground 25.20 [0.992]36.60±1.00 [1.441±0.039] MORN5UN GUANGZHOU SCIENCE & TECHNOLOGY CO.,LTD. MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Open the catalog to page 7AC/DC ConverterLH20(25) Series Notes: 1. Packing information please refer to Product Packing Information which can be downloaded from www.mornsun-power.com. Packing bag number of Horizontal package: 58220006, the Packing bag number of A2/A3/A4 package: 58220010; 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; 3. Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25°C, humidity<75% with nominal input voltage and rated output load; 4....
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