98-0231

PMIC - Gate Drivers are components used to switch high current flow through power transistors. By controlling the gate voltage with a gate driver, current is sent to the gate of the transistor which in turn triggers it to switch the current. PMIC - Gate Drivers, such as application 98-0231, come in many shapes and sizes and offer many types of functions. A detailed look at the application 98-0231 and its working principle.

Application 98-0231

Application 98-0231 is an integrated gate driver IC from PMC - Gate Drivers. It features an industry standard footprint and is capable of driving standard NChannel MOSFETs. Its power dissipation is low and features internal Thermal Shutdown and over-voltage protection. It offers a wide range of operation voltages, from 2.5V to 5.5V and has a peak output current of 2.5A. It has a slew rate controlled by a programmable switching frequency, making it suitable for low-speed file systems and wireless designs. Application 98-0231 also has a regulated PWM mode, as well as a linear mode, allowing it to be used in both low-side and high-side scenarios.

The application 98-0231 is compatible with most power electronics system designs and its integrated semiconductor technology ensures high reliability and long lifetime. It has latch protection to reduce the chance of latch up and is capable of absorbing up to 40V of reverse voltage. It also has an adjustable current limit feature which allows the user to choose between high-speed or low-current applications as well as programmable current limits for improved safety. With its versatile features, application 98-0231 is a great choice for any power electronics design.

Working Principle

PMIC - Gate Drivers work by controlling the gate voltage of the power transistors. It does this by providing a controlled amount of current to the gate of the transistor, which in turn acts as a switch to allow current to pass through the device. As the transistor turns on, a start-up current is sent to the gate and the voltage across it increases, causing the transistor to turn on. The gate drive current can then control the transistor\'s current, allowing the user to control the voltage, frequency and current of the power transistors.

PMIC - Gate Drivers can also be used to provide current limiting. This is done by monitoring the current flowing through the power transistor and automatically reducing it when too much current is passing through. This ensures that the power transistor won\'t be damaged or its performance degraded due to excessive current. Application 98-0231 includes a programmable current limit feature, allowing the user to adjust the current limit as needed.

In addition to controlling the gate voltage, application 98-0231 also offers two modes of current control, PWM and linear. In PWM mode, the current is controlled by a switching frequency, allowing the user to adjust the speed of the power transistor. In linear mode, the voltage is controlled and the current is regulated through a series of resistors, allowing the user to set a fixed output voltage and current. This makes applications 98-0231 perfect for low-side and high-side transistors, allowing the user to control the voltage and current of the power transistor while also maximizing efficiency.

Conclusion

Application 98-0231 from PMC - Gate Drivers is a great choice for any power electronics design. It features a range of adjustable current limiting features, as well as programmable current limit help ensure the power transistor won\'t be damaged. It also has two modes of current control, Pulse Width Modulation and Linear, allowing the user to adjust the current and voltage according to their needs. With its user-friendly features, Application 98-0231 is an ideal choice for any power electronics design.