Description:Integrated 700 V MOSFET with RDS(on) of 2.7 Ω; Current-Mode Fixed Frequency Operation (65 & 100 kHz) - 130 kHz for B version only; Peak Current: NCP1079A/B = 1,050mA; Skip-Cycle Operation at Low Peak Current; Dynamic Self-Supply (DSS); Auto-Recovery Output Short Circuit Protection with Timer-Based Detection; Frequency Foldback Operation; 300 µA No Load Power Consumption; Frequency Jittering (including during frequency foldback mode); Adjustable Brown-out Protection and OVP; Over Power Protection; 2nd Level
The recommended PCB layout for the NCP1079BBP065G can be found in the Onsemi application note AND8327/D, which provides guidelines for PCB design, component placement, and thermal management.
The input capacitor selection depends on the input voltage, output voltage, and output current. A general guideline is to choose a capacitor with a voltage rating of at least 1.5 times the input voltage, and a capacitance value of 10uF to 22uF. The capacitor should also have a low ESR (Equivalent Series Resistance) to minimize voltage ripple.
The maximum ambient temperature for the NCP1079BBP065G is 85°C, but it can be derated to 70°C for high-reliability applications. It's essential to ensure proper thermal management and heat sinking to maintain a safe operating temperature.
Yes, the NCP1079BBP065G is designed to withstand vibrations up to 10g peak acceleration, making it suitable for industrial and automotive applications. However, it's crucial to ensure proper PCB mounting and component soldering to prevent mechanical stress and damage.
Troubleshooting issues with the NCP1079BBP065G typically involves checking the input voltage, output voltage, and output current. Use an oscilloscope to monitor the voltage and current waveforms, and check for signs of overheating, such as excessive temperature or thermal shutdown. Consult the Onsemi application notes and datasheet for more detailed troubleshooting guidelines.
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NCP1079BBP065G Overview
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