SPV1020

www.DataSheet4U.com SPV1020 Interleaved DC-DC boost converter with built-in MPPT algorithm Preliminary data Features ■ ■ ■ ■ ■ ■ ■ ■ PWM mode DC-DC boost converter Duty cycle controlled by MPPT ALGORITHM with 0.2% accuracy Operating voltage range 0-36 V Overvoltage, overcurrent, overtemperature protections Built in soft-start Up to 98% efficiency Automatic transition to burst mode for improved efficiency at low solar radiation SPI interface interleaved topology of the DC-DC converter allows to avoid the use electrolytic capacitors, which would severely limit the lifetime. It works at fixed frequency in PWM mode, where the duty cycle is controlled by the embedded logic running a Perturb&Observe MPPT algorithm. The switching frequency, internally generated and set by default at 100 kHz, is externally tunable, while the duty cycle can range from 5% to 90% with a step of 0.2%. Safety of the application is guaranteed by stopping the drivers in case of output over-voltage or overtemperature. Table 1. Device summary Package PowerSSO-36 Packaging Tube PowerSSO-36 Applications ■ Photovoltaic panels Description SPV1020 is a monolithic DC-DC boost converter designed to maximize the power generated by photovoltaic panels independently of temperature and amount of solar radiation. The optimization of the power conversion is obtained with an embedded logic which performs the MPPT (max power point tracking) algorithm on the PV cells connected to the converter. One or more converters ...