The new high performance 10A SQE48T10120 DC-DC converter provides a high efficiency single output, in a 1/8th brick package that is only 62% the size of the industry-standard quarter-brick. Specifically designed for operation in systems that have limited airflow and increased ambient temperatures, the SQE48T10120 converter utilize the same pinout and functionality of the industry-standard quarter-bricks. The SQE48T10120 converter thermal 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-body profile. Low-body profile and the preclusion of heat sinks minimize impedance to system airflow, thus enhancing cooling for both upstream and downstream devices. The use of 100% automation for assembly, coupled with advanced electronic circuits and thermal design, results in a product with extremely high reliability. Operating from a 36-75V input, the SQE48T10120 converter provides a 12V output voltage that can be trimmed from 20% to +10% of the nominal output voltage, thus providing outstanding design flexibility. With standard pinout and trim equations, the SQE48T10120 converter is a perfect drop-in replacement for existing 10A quarter-brick designs. Inclusion of this converter in a new design can result in significant board space and cost savings. The designer can expect reliability improvement over other available converters because of the SQE48T10120s optimized thermal efficiency. 36-75 VDC Input 12 VDC 10 A Output Industry-standard quarter-brick pinout Delivers 120W at 93% efficiency Withstands 100 V input transient for 100 ms Fixed-frequency operation On-board input differential LC-filter Start-up into pre-biased load No minimum load required Output voltage trim range: +10%/20% with industry-standard trim equations Fully protected Remote output sense Positive or negative logic ON/OFF option Approved to the latest edition of the following standards: UL/CSA60950-1, IEC60950-1 and 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 RoHS lead-free solder and lead-solder-exempted products are available Asia-Pacific Europe, Middle East North America +86 755 298 85888 +353 61 225 977 +1 866 513 2839 2015 Bel Power Solutions, Inc. BCD.00723 AA 2 Conditions: TA = 25 C, Airflow = 300 LFM (1.5 m/s), Vin = 48 VDC, Cin = 33 F, unless otherwise specified. PARAMETER CONDITIONS / DESCRIPTION MIN TYP MAX UNITS Absolute Maximum Ratings Continuous -0.3 80 VDC Input Voltage Transient, 100ms 100 VDC Operating Ambient Temperature -40 85 C Storage Temperature -55 125 C Isolation Characteristics I/O Isolation 2250 VDC Standard Product: Isolation Capacitance Option 0 190 pF (refer to Ordering Information) Isolation Resistance 10 M I/O Isolation 1500 VDC Option K Isolation Capacitance 1200 1500 pF (refer to Ordering Information) Isolation Resistance 10 M Feature Characteristics Switching Frequency 500 kHz 1 Output Voltage Trim Range Industry-standard trim equations -20 +10 % 1 Remote Sense Compensation Percent of VOUT(NOM) +10 % Output Overvoltage Protection Non-latching 117 122 135 % Overtemperature Shutdown (PCB) Non-latching 140 C Auto-Restart Period Applies to all protection features 200 ms Time from UVLO to Vo = 90% VOUT(NOM) Turn-On Time from Vin 5 ms Resistive load Time from ON to Vo = 90% VOUT(NOM) Turn-On Time from ON/OFF Control 5 ms Resistive load Time from UVLO to Vo = 90% V (NOM) OUT Turn-On Time from Vin 13 ms Resistive load and 5,000 F load Time from ON to Vo = 90% V (NOM) OUT Turn-On Time from ON/OFF Control 13 ms Resistive load and 5,000 F load Converter Off (logic low) -20 0.8 VDC ON/OFF Control (Positive Logic) Converter On (logic high) 2.4 20 VDC Converter Off (logic high) 2.4 20 VDC ON/OFF Control (Negative Logic) Converter On (logic low) -20 0.8 VDC Input Characteristics Operating Input Voltage Range 36 48 75 VDC Turn-on Threshold 33 34 35 VDC Input Undervoltage Lockout Turn-off Threshold 31 32 33 VDC Lockout Hysteresis Voltage 1.5 VDC Maximum Input Current Po = 120 W 36 VDC In 3.6 ADC 1 Vout can be increased up to 10% via the sense leads or 10% via the trim function. However, the total output voltage trim from all sources should not exceed 10% of VOUT(nom), in order to ensure specified operation of overvoltage protection circuitry. tech.support psbel.com