L5991

The L5991 is an integrated circuit (IC) component designed for high efficiency resonant applications in the field of power electronics. This IC is mainly used in resonant converters, wireless power transfer, and induction heating applications. Its unique features make it an ideal choice for high-frequency power conversion circuits. One of the key features of the L5991 is its versatility in handling various resonant topologies such as series resonant, parallel resonant, and LCL resonant configurations. This flexibility allows designers to adopt different circuit implementations for their specific power conversion needs. The IC integrates a half-bridge driver with independent high and low-side outputs, which enables efficient drive control for power MOSFETs or IGBTs. It supports a wide range of power devices, allowing for enhanced configuration flexibility while maintaining high efficiency. Another notable feature of the L5991 is its ability to regulate the output voltage and current through a closed-loop control system. This built-in control loop ensures stable and precise output regulation, providing improved power management capabilities in resonant applications. The chip incorporates various protection mechanisms to safeguard the device and the overall circuitry. It includes features like under-voltage lockout (UVLO), over-current protection (OCP), and thermal shutdown. These safety features ensure reliable operation and protect against potential device failures and damage. To facilitate system integration, the L5991 employs a simple and compact layout design