48Vdc Input, 28Vdc 12.5A Output Half-brick DC-DC Converter AVE350B-48S28-6LA Description The AVE350B-48S28-6LA converter is a new DC/DC converter with aluminum baseplate for optimum efficiency and power density. The converter provides up to 12.5A output current, which makes it an ideal choice for small space and high power applications. The converter uses an industry standard half brick 61.0mm57.9mm12.7mm (2.42.280.5) and standard pin configuration. The converter provides CNT, Trim and remote sense functions. Operational Features Mechanical Features Delivering up to 12.5A output current Industry standard half-brick pin-out outline Ultra-high efficiency 93.5% type at full With baseplate load and 93.2% type at half load Pin length: 3.8mm Wide input range: 36V ~ 75V Excellent thermal performance Safety & EMC No minimum load requirement RoHS compliant (R5 or R6 optional) Meets safety standards UL 60950-1, CSA-C22.2 NO. 60950-1, IEC/EN Control Features 60950-1 and GB4943 Approved by UL and TUV Remote control function (negative or Meets 2006/95/EEC and 93/68/EEC positive logic optional) directives which facilitates CE marking in Remote output sense users end product Trim function: 60% ~ 118% Meets conducted emission s requirements of EN55022 Class B with external filter Protection Features Input under voltage lockout Output over current protection Output over voltage protection Over temperature protection Document No. 31020986 July 31, 2009 Rev 1.0 AVE350B-48S28-6LA DC-DC Converter 2/15 Electrical Characteristics Full operating ambient temperature range is -40C to +85C. Specifications are subject to change without notice. Parameter Min. Typ. Max. Unit Notes & Conditions Absolute max. ratings Non-operating 100 V 100ms Input voltage Operating 80 V Continuous Operating temperature -40 85 C Refer to Thermal Considerations Storage temperature -55 125 C Output power 350 W Refer to Thermal Considerations Voltage at remote ON/OFF pin -0.3 15 V Input characteristics Operating input voltage range 36 48 75 V Turn-on voltage 33 35 36 V threshold Input Turn-off voltage under-voltage 31 33 35 V threshold lockout Lockout voltage 1 2 3 V hysteresis Max. input current 10.5 11.5 A 36V , full load in No-load input current 0.035 A Standby Input current 0.001 A Remote OFF Input reflected ripple current 35 mA Through 12H inductor Figure 15 pp Fast blow external fuse Recommended input fuse 15 A recommended Figure 10 Input filter component values (C L) 7 0.68 F H Internal values Recommended external input Low ESR capacitor 220 F capacitance recommended Figure 10 Output characteristics Output voltage set point (standard 27.72 28 28.28 V 48V , half load,T =25C in a option) 0.05 1 % Output voltage line regulation 14 140 mV Rating output,V =36~75V in 0.1 1 % Output voltage load regulation 28 280 mV Rating input,I =0~12.5A o