描述 Description

The PowerQor? eighth-brick series is composed of next generation, board-mountable, isolated, fixed switching frequency DC-DC converters that use synchronous rectification to achieve extremely high power conversion efficiency. The power dissipated by the converter is so low that a heatsink is not required, which saves cost, weight, height, and application effort. All of the power and control components are mounted to the multi-layer PCB substrate with high-yield surface mount technology. Since the PowerQor converter has no explicit thermal interfaces, it is extremely reliable. RoHS Compliant (See page 15).

特性 Features

操作特性
? High efficiency, 87% at full rated load current
? Delivers up to 48W of output power with minimal derating - no heatsink required
? Operating input voltage range: 35V-75Vdc, with 100V, 100ms input voltage transient capability
? Fixed frequency switching provides predictable EMI performance
? No minimum load requirement means no preload resistors required
機(jī)械特征
? Industry standard eighth-brick pin-out configuration
? Size: 0.9” x 2.3” (22.9 x 58.4mm)
? Low Profile total height only 0.340” (8.64mm), permits better airflow and smaller card pitch
? Total weight: 0.85oz (24g)
? Flanged pins designed to permit surface mount soldering (avoid wave solder) using FPiP technique
控制功能
? On/Off control referenced to input side (positive and negative logic options are available)
? Remote sense for the output voltage compensates for output distribution drops
? Output voltage trim permits custom voltages and voltage margining
安全特性
? 2000V, 30MΩ input-to-output isolation provides input/output ground separation
? UL 60950-1 recognized (US & Canada), basic insulation rating
? TUV certified to EN60950-1
? Board and plastic components meet UL94V-0 flammability requirements
保護(hù)功能
? Input under-voltage lockout disables converter at low input voltage conditions
? Output current limit and short circuit protection protects converter and load from permanent damage and consequent hazardous conditions
? Active back bias limit prevents damage to converter from external load induced pre-bias
? Output over-voltage protection protects load from damaging voltages
? Thermal shutdown protects converter from abnormal environmental conditions