LM5114BSDX/NOPB

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The LM5114BSDX/NOPB is a synchronous gate driver for power management integrated circuit (PMIC) applications. It\'s specifically designed for driving power-switching MOSFETs and IGBTs in high-side and low-side, synchronous rectified multi-phase power suppliers. The device is electronically configurable to deliver rail-to-rail gate drive voltage. It provides an input logic translation­­ function to allow direct compatibility with conventional the low-side gate drivers and other logic level inputs. The device integrates full protection with over-current, short-­circuit, ESD, and temperature protection, which improves system reliability, product quality, and performance.

The LM5114BSDX/NOPB gate driver is integrated with low-side gate driver MOSFET for easy load switching and driving of high-side power devices. It is widely used in the power management systems such as ac-dc power converters, switching regulators, battery management systems, and brushed DC motor applications. It also has versatile features such as frequency synchronization, scan sequencing support, and fine-tuning for better performance.

The LM5114BSDX/NOPB features a high-side gate driver MOSFET configuration with a wide operating voltage range from 4V to 18V. It provides high-speed gate drive, current-limiting, short-circuit protection, and over-temperature protection. Additionally, it provides a logic input in the form of separate inverting and non-inverting input pins to allow direct control of multiple power devices.

The LM5114BSDX/NOPB is designed to provide synchronous rectified output voltage and current to power system components. It has three synchronous rectifiers circuits, each with a logic-level input and output. It provides a 600mA high-side driver output and 3A low-side synchronous rectified driver output. The device also features a high-side R-sense sensing option for current sensing of the MOSFET or the power source, which helps reduce the number of components required for current sensing.

The LM5114BSDX/NOPB gate driver also has an integrated Vcc over-voltage and under-voltage monitoring system for sensing and regulating the gate voltage. It also features an open collector reset wiring, which helps prevent inrush of current during initial startup. In addition, the device has integrated ESD protection and is provided in an 8-pin SOIC package for enhanced thermal management and better management of space.

The LM5114BSDX/NOPB gate driver is an ideal choice for driving power-switching MOSFETs and IGBTs in high-side and low-side synchronous rectified multi-phase power supplies. It provides an input logic translation function to allow direct compatibility with conventional low-side gate drivers and other logic levels inputs. Additionally, it has a wide operating voltage range and integrated protection features such as over-current, short-­circuit, ESD, and temperature protection, which improves system reliability, product quality, and performance.

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