IC family targets microinverters, controllers

IC family targets microinverters, controllers

Ten SolarMagic renewable-energy grade ICs that suit photovoltaic systems feature maximum power point tracking (MPPT) controllers, sensing and detection ICs, gate drivers, and voltage regulators. The devices suit photovoltaic electronic applications, including those found in microinverters, power optimizers, charge controllers and panel safety systems. Each IC is engineered for rooftop environments that range from extreme cold to severe heat, and exceed the 25-year life expectancy of photovoltaic modules.

Collectively provided as a complete design, the ICs increase energy harvest, reduce cost per kilowatt-hour and improve safety in junction boxes and other types of enclosures. Used independently, the ICs provide voltage and current gate drive for microinverter or power optimizer designs. The SM72441 and SM72442 are programmable MPPT controllers and feature voltage and current diagnostics, integrated four-switch buck-boost converter control, overvoltage and overcurrent protection and an I2 C interface. The SM72295 is full-bridge gate driver, and the SM72482 is dual 5-A compound gate driver. They drive four discrete MOSFETs in a full-bridge configuration. The SM72485 switching regulator has constant-on-time technology that enables an operating range up to 100 V. The SM72240 is a supervisory reset circuit. The SM72375 is a dual-micropower rail-to-rail input CMOS comparator. The SM72480 is a preset temperature switch and sensor. The SM72501 is a CMOS supply range amplifier that provides offset voltage and input bias current. (Ea./1,000: From $0.50 to $4.10 available now.)

National Semiconductor , Santa Clara , CA
Sales 408-721-5000

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