DATA SHEET SSQE48T15033 DC-DC CONVERTER 36-75V Input 3.3V , 15A, 50W Output DC DC FEATURES RoHS lead-free solder and lead-solder-exempted products are available Industry-standard DOSA pinout Output: 3.3V at 15A On-board input differential LC-filter Start-up into pre-biased load No minimum load required APPLICATIONS Weight: 0.44oz 12.3 g Meets Basic Insulation requirements of EN60950 o Telecommunications Withstands 100V input transient for 100ms o Data communications Fixed-frequency operation o Wireless communications Hiccup overcurrent protection o Servers, workstations Fully protected (OTP, OCP, OVP, UVLO) Remote sense Remote ON/OFF positive or negative logic option BENEFITS Output voltage trim range: +10%/20% with industry-standard trim equations Low height of 0.374 (9.5mm) High efficiency no heat sink Industry standard 1/16th brick footprint: 0.9 by 1.3 required High reliability: MTBF = 16.23 million hours, calculated per Telcordia TR- Cost effective, single board design 332, Method I Case 1 UL60950 recognized in US and Canada and DEMKO certified per Small size and low-profile IEC/EN60950 Designed to meet Class B conducted emissions per FCC and EN55022 when used with external filter All materials meet UL94, V-0 flammability rating DESCRIPTION The new SSQE48T15033 DC-DC converter is an open frame sixteenth-brick DC-DC converter that conforms to the Distributed Open Standards Architecture (DOSA) specifications. The converter operates over an input voltage range of 36 to 75VDC, and provides a tightly regulated output voltage with an output current up to 15A. The output is fully isolated from the input and the converter meets Basic Insulation requirements permitting a positive or negative output configuration. The converter is constructed using a single-board approach with both planar and discrete magnetics. The standard feature set includes remote On/Off (positive or negative logic), input undervoltage lockout, output overvoltage, overcurrent, and short circuit protections, output voltage trim, and overtemperature shutdown with hysteresis. With standard pinout and trim equations and excellent thermal performance, the SSQE48T15033 converters can replace in most cases existing eighth-brick converters. Inclusion of this converter in a new design can result in significant board space and cost savings. ZD-01726 2.1 October-21-2013 1 www.power-one.com DATA SHEET 1 ELECTRICAL SPECIFICATIONS Conditions: T = 25 C, Airflow = 300 LFM (1.5 m/s), Vin = 48 VDC, Cin=33 F, unless otherwise specified. A PARAMETER NOTES MIN TYP MAX UNITS Absolute Maximum Ratings Input Voltage Continuous 0 80 VDC Operating Ambient Temperature -40 85 C Storage Temperature -55 125 C Isolation Characteristics I/O Isolation 2250 VDC Isolation Capacitance 150 pF Isolation Resistance 10 M Feature Characteristics Switching Frequency 411 440 469 kHz 1 Output Voltage Trim Range Industry-standard equations (3.3V) -20 +10 % 1 Remote Sense Compensation Percent of VOUT(NOM) +10 % Output Over-voltage Protection Non-latching 120 130 140 % Over-temperature Shutdown (PCB) Non-latching 125 C Sinking current from external voltage source Peak Backdrive Output Current during startup into equal VOUT(NOM) 0.6V and connected to output 50 mADC prebiased output via 1 resistor Converter is OFF Backdrive Output Current in OFF state 10 mADC External voltage=5 VDC Auto-Restart Period Applies to all protection features 200 ms Turn-On Time See Figures E, F, and G 5 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 Mechanical Weight 12.3 g Reliability Telcordia SR-332, Method I Case 1 MTBF 16.23 MHrs 50% electrical stress, 40 C ambient Input Characteristics Operating Input Voltage Range 36 48 75 VDC Input Under-voltage Lockout Turn-on Threshold 33 34 35 VDC Turn-off Threshold 31 32 33 VDC Input Voltage Transient 100 ms 100 VDC Maximum Input Current VIN = 36VDC , IOUT=15ADC 1.56 ADC Input Stand-by Current Vin = 48V, converter disabled 10 mA Input No Load Current (0 load on the output) Vin = 48V, converter enabled 43 mA Input Reflected-Ripple Current, is Vin = 48V, 25 MHz bandwidth 10 20 mAPK-PK Input Voltage Ripple Rejection 120 Hz 90 dB 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 shall not exceed 10% of VOUT(NOM) in order to ensure specified operation of overvoltage protection circuitry. SSQE48T15033 DC-DC Converter 2 www.power-one.com