The HBC48T25120 power module is an open frame half- brick DC-DC converter providing a regulated and isolated output voltage of 12.0 VDC with an output current up to 25 A suitable for todays Distributed Power Architecture applications. It offers outstanding thermal performance in high temperature environments. This performance is accomplished through the use of patented/patent-pending circuits, packaging, and processing techniques to achieve ultra-high efficiency, excellent thermal management, and a low mechanical profile. This low-body profile minimizes impedance to system airflow, thereby enhancing cooling for both upstream and downstream devices. For extended cooling purposes, a baseplate option is available. Attaching a heat sink or cold RoHS lead-free solder and lead-solder-exempted plate further enhances the units capability. The use of 100% products are available automation for assembly, coupled with advanced electronic Delivers up to 25 A of output (13.5 A 70 C, 200 LFM) circuits and thermal design, results in a product with Industry-standard half-brick pinout extremely high reliability. Optional baseplate attachment Operating from a 36-75 V input, the HBC48T25120 converter On-board input differential LC-filter provides an output that can be trimmed from 20% to +10% Startup into pre-biased load No minimum load required of the nominal output voltage, thereby providing outstanding Dimensions: 2.40 x 2.28 x 0.50 design flexibility. (61.0 mm x 57.9 mm x 12.7 mm) Meets Basic Insulation requirements of EN60950 Withstands 100 V input transient for 100 ms Fixed frequency operation Remote output voltage sense Fully protected with automatic recovery Positive or negative logic ON/OFF option Output voltage trim range: +10%/20% with industry- standard trim equations High reliability: MTBF approx. 8.7 million hours, calculated per Telcordia TR-332, Method I Case 1 Recognized to UL60950-1/CSA 22.2 No. 60950-1, and TUV approved to IEC EN60950-1 Designed to meet Class B conducted emissions per FCC and EN55022 when used with external filter All materials meet UL94, V-0 flammability rating North America +1-866.513.2839 Asia-Pacific +86.755.29885888 Europe, Middle East +353 61 225 977 tech.support psbel.com 2015 Bel Power Solutions, Inc. BCD.00627 AA HBC48T25120 Conditions: T = 25 C, Airflow = 300 LFM (1.5 m/s), Vi n = 48 VDC, unless otherwise specified. A PARAMETER NOTES MIN TYP MAX UNITS Absolute Maximum Ratings Continuous 75 VDC Input Voltage 0 Transient (100 msec) 100 VDC Operating Ambient Temperature -40 85 C Operating Temperature Component (Tc) -40 125 C Baseplate (Tb) -40 110 C Storage Temperature -55 125 C Isolation Characteristics Input to Output Isolation 1500 VDC Input to Case Isolation 1500 VDC Output to Case Isolation 1500 VDC F Isolation Capacitance 2.5 M Isolation Resistance 10 Feature Characteristics Switching Frequency 360 kHz 1 Output Voltage Trim Range Industry-std. equations -20 +10 % 1 Remote Sense Compensation Percent of VOUT(NOM) +10 % Output Overvoltage Protection Latching 117 122 127 % Overtemperature Shutdown Component (Tc) Non-latching 140 C Baseplate (Tb) 125 C Auto-Restart Period Applies to all protection features 200 ms Turn-On Time from Vin Time from UVLO to Vo=90%Vo-nom 50 ms Turn-On Time from enable Time from Enable to Vo=90%Vo-nom 4 ms ON/OFF Control (Positive Logic) Converter Off (logic low) -20 0.8 VDC Converter On (logic high) 2.4 20 VDC ON/OFF Control (Negative Logic) Converter Off (logic high) 2.4 20 VDC Converter On (logic low) -20 0.8 VDC Input Characteristics Operating Input Voltage Range 36 48 75 VDC Input Under Voltage Lockout Non-latching Turn-on Threshold 33 34 35 VDC Turn-off Threshold 31 32 33 VDC Input Voltage Transient 100 ms 100 VDC Maximum Input Current 12 VDC Out 25 ADC, Vin= 36 VDC 10 ADC Input Stand-by Current Vin = 48 V, converter disabled 3 mADC Input No Load Current (0 load on the output) Vin = 48 V, converter enabled 75 mADC Input Reflected-Ripple Current 25 MHz bandwidth 20 mAPK-PK Input Voltage Ripple Rejection 120 Hz 65 dB 866.513.2839 tech.support psbel.com 2015 Bel Power Solutions, Inc. BCD.00627 AA