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GPLW5V060STRT001 Datasheet(PDF) 3 Page - Galaxy Power, Inc. |
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GPLW5V060STRT001 Datasheet(HTML) 3 Page - Galaxy Power, Inc. |
3 / 8 page Leo Series, Page 3 PRELIMINARY Part No. 99–001 Rev. 4.0–120902 CoolConverter™ Family Galaxy’s COOLCONVERTER™ Family features: •Patented single-stage power conversion architecture, control, and magnetic design allow unprecedented power density and efficiency in an isolated power supply. • An advanced microcontroller reduces parts count while adding features, performance, and flexibility in the design. •Low common-mode noise as a result of lower capacitance in the transformer compared to planar magnetics and metal baseplate designs. • Higher reliability than planar transformer designs that can suffer from via fatigue from thermal cycling, and metal baseplate designs with board to board interconnects that are subject to mechanical stress on electrical connections. Application Notes Protection and Control Valid Input Voltage Range: The converter measures the input voltage and will not allow operation outside of the input voltage specification. As shown by the graphs, hysteresis is added to both the high and low voltage to prevent the converter from turning on and off repeatedly when the voltage is held near either voltage extreme. At low line this assures the maximum input current is not exceeded; at high line this assures the semiconductor devices in the converter are not damaged by excessive voltage stress. Shut down for over-input voltages is inhibited for 100 ms transients to prevent false shut down due to transient input voltage conditions. ON/OFF Logic: The Leo family of converters comes standard with both positive and negative logic input-side shutdown pins and positive logic secondary-side shutdown. All enable pins have internal pull-ups of approximately 0.2mA. The secondary-side enable allows for system sequencing without the need for an opto-isolator. For the converter to operate all negative logic enable inputs must be less than one volt and the positive logic enable must be greater than 4V or open-circuited. |
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