48Vdc Input, 12Vdc 50A Output Half-Brick Converter AVE600-48S12B Description The AVE600-48S12B is a single output DC-DC converter with standard half-brick outline and pin configuration. It delivers up to 50A output current with 12V output voltage. The converter can provide ultra-high efficiency of 95.6% and excellent thermal performance, which makes it an ideal choice for bus converter. For typical applications, a heat sink and sufficient airflow is required. Operational Features Up to 50A output current Industry standard half-brick foot print Mechanical Features Basic isolation Ultra-high efficiency: 95.6% at 12V half Industry standard half-brick pin-out outline load (V = 48Vdc) in Choice of short pins or long pins Improved thermal performance Pin length option: 3.8mm, 4.8mm, 5.8mm High power density Low output noise Safety & EMC No minimum load requirement wide input voltage of 36V~75V Meets safety standards UL 60950-1, RoHS compliant CSA-C22.2 NO. 60950-1, IEC/EN 60950-1 and GB4943 Control Features Approved by UL and TUV Meets 2006/95/EEC and 93/68/EEC Remote control function (negative or directives which facilitates CE marking in positive logic optional) users end product Remote output sense Meets conducted emission s requirements Trim function: 90% ~ 110% 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. 31020755 May 18, 2010 Rev 1.1 AVE600-48S12B DC-DC Converter TRN 2/17 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 Voltage at remote ON/OFF pin -0.3 15 V Input characteristics Operating input voltage range 36 48 75 V Turn-on voltage 35 36 V threshold Input Turn-off voltage under-voltage 32 34 V threshold lockout Lockout voltage 1 3 V hysteresis Max. input current 24 A 36V , full load in No-load input current 0.2 A 48V , full load in Standby Input current 0.08 0.1 A Remote OFF Input reflected ripple current 50 150 mA Through 12H inductor Figure 3 External fast blow fuse Recommended input fuse 30 A recommended Figure 11 Input filter component values (C L) 17.6 0.56 F H Internal values Recommended external input Low ESR capacitor 470 F capacitance recommended Figure 11 Output characteristics Output voltage set point (standard 11.80 12 12.20 V 48V , full load in option) 0.15 0.33 % Output voltage line regulation 18 40 mV 0.1 0.2 % Output voltage load regulation 12 24 mV Output voltage temperature 0.02 %/C regulation