Comparing N-Channel and P-Channel MOSFETs: Which is best for your application?
This article compares the n-channel and p-channel power MOSFETs, introduces the complete Littelfuse p-channel power MOSFETs portfolio, and explores target applications.
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A full brick package developed by TDK-Lambda, the PF1500B-360, is for high voltage distributed power architectures
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Three PowiGaN devices (INN3478C, INN3479C and INN3470C) InnoSwitch3-MX ICs can be used with the company’s InnoMux controller IC to support display and appliance power supply applications with a continuous output power of up to 75W, without a heatsink.
Such an InnoMux chipset uses a single-stage power architecture that reduces losses in display applications by 50% when compared to conventional designs, says the company, and increasing overall efficiency to 91% in constant-voltage and constant-current LED backlight driver designs. Eliminating the need for post regulation (i.e. buck and boost) stages, the component count for TVs and monitors can be halved, to improve reliability and reduce manufacturing costs.
The PowiGaN InnoSwitch3-MX devices have a high breakdown voltage of 750V and are resistant to the line surges and swells.
The InnoSwitch3-MX flyback switcher ICs combine the primary switch, the primary-side controller, a secondary-side synchronous rectification controller, and the company’s FluxLink high-speed communications link. It receives control instructions from its chipset partner InnoMux IC, which independently measures the load requirements of each output and directs the switcher IC to deliver the right amount of power to each output to maintain current or voltage.
The company says the chipset increases efficiency beyond the requirements of all mandatory regulations and improves manufacturers’ scores in EU efficiency labeling programmes.
Samples of the INN3478C, INN3479C, INN3470C InnoSwitch3-MX ICs are available now.
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