Geneva – Aimed at allowing more of the energy from each cell to reach the power grid in solar panels, STMicroelectronics has developed a product that replaces the simple bypass diode and enhances efficiency while offering the same package outline.
ST's SPV1001 contains a low-loss power switch and a precision controller. Directly replacing bypass diodes, which are used to prevent hotspot effects, the SPV1001 protects the energy normally lost in each diode. Compared to the use of diodes, the integrated power switch provides negligible leakage current when the photovoltaic (PV) panel is producing energy. ST's BCD6 chip fabrication process provides the key to this advance by integrating highly efficient power components with logic control circuitry.
In addition to package options enabling one-for-one replacement of bypass diodes in the solar panel's junction box, the SPV1001 is available in an MLPD package that can be laminated directly into the panel, due to the device's ultra-low-profile and minimal power losses. This will simplify electronic design and assembly while also boosting system reliability.
BCD6 and EHD5 power MOSFET processes
Low conduction losses when operating in bypass mode
Low leakage current minimizes losses in bypass stand-by mode
Lower operating temperature optimizes junction box design
High robustness to surge and lightning currents
Integration of power and control functions
TO-220 or D2PAK packages, pin- and outline-compatible with existing bypass diodes
Optional ultra-low-profile Power MLPD package for in-panel assembly
Pricing: Approximately $3for a minimum order of 1000 units, depending on the package version. Alternative pricing options are available for larger quantities.
Availability: In production now in the industry-standard TO-220 and ultra low-profile MLPD packages.
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