L6498LDTR Integrated Circuits (ICs)

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Power integrity is a key element of any electronic system. The device’s components must be powered with a power supply that is reliable, efficient and cost-effective. The L6498LDTR is a family of motor driver MOSFETs (Metal Oxide Semiconductor Field-Effect Transistors) which integrates features such as a low operating voltage, wide gate-source voltage range, higher current, lower power loss and better thermal performance all of which have made it one of the most popular solutions for power delivery applications. It is a gate driver designed to improve precision of the gate voltage, and to reduce noise. The main application fields of the L6498LDTR are as follows:

Motor Driving: The L6498LDTR gate driver is suitable for driving MOSFETs and IGBTs used in brush-less motor applications such as BLDC, PMSM or stepper motor. By optimizing the speed and themal performance, precision and reliability of the driving circuit, it helps maximize the performance and efficiency of the motor.

Industrial Power System: The L6498LDTR is a suitable gate driver for high voltage DC/DC converters and rectifiers, DC and AC variable speed drive systems, power factor control systems, high-frequency resonant converters, and other high power switch applications. It helps reduce the power loss in high power applications by providing high speed switching, accurate dead time control, and a wide range of voltage and current ratings.

Automotive: L6498LDTR is often used in automotive applications, including motor drivers for electric power steering, electronic brake, and engine management systems. Its low input voltage and low power consumption make it an ideal solution for providing the increased power and efficiency required by the latest generation of vehicles.

Working Principle: The L6498LDTR is based on a controlled-on-time MOSFET driver, which is a power switch with a minimum switching timescale as its essential parameter. The low-side and high-side driver channels of the L6498LDTR open the gate of the power MOSFET when the driver’s short circuit current limit is reached. This causes voltage to be quickly turned on and off during a switching cycle.

The L6498LDTR allows low voltages such as 5V logic (V53), 12V inputs (V83) and 24V gate voltage (V83) and is particularly suitable for automotive. It also offers a wide voltage range from 8V to 24V and a wide supply voltage range from 8V to 32V. It is designed to reduce power loss and noise by having a fast switching timescale and low power consumption. In addition, the wide temperature ranges and current ratings allow it to operate in high temperature environments. Additionally, the low op-amp output voltage provides better power efficiency and higher reliability.

The built-in protection features add even further benefit, providing over-current protection, over-temperature protection and under-voltage protection with no external circuitry. The L6498LDTR is ideal for use in motion control applications such as BLDC, PMSM and stepper motor drivers.

The L6498LDTR is a high-performance gate driver designed to improve power supply at the MOSFET switch. Its wide voltage and temperature ratings are especially suitable for automotive applications, and the built-in protection features give the user a high level of protection and reliability. Relevant studies have shown that the use of the L6498LDTR can result in significant improvements in power efficiency and reliability over other conventional gate drivers.

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