IR25601SPBF

IR25601SPBF Application Field and Working Principle

IR25601SPBF is a part of the International Rectifier Automotive grade of high and low side driver ICs, known as PMIC Gate Drivers, designed to easily and efficiently drive MOSFET, IGBT, and bipolar transistors. This product offers superior noise immunity, high-current driving, and very low-voltage drop. It operates with both low and high input voltage, allowing for an extended operating range, and includes fault protection features for over-current and over-temperature sensing. This makes it an ideal solution for automotive systems, such as fuel injection, engine control modules, and airbags.

The IR25601SPBF is a high-frequency optimized, high-efficiency driver for both low-side and high-side parallel connected MOSFETs. It features built-in thermal shutdown and pre-biased linear control, as well as high-speed current regulators for outstanding transient performance. It also features two independent current limit settings and an integrated voltage shift circuit, which helps protect the IC in the event of a short circuit.

The IR25601SPBF basic block diagram consists of three main parts. The input stage consists of an input comparator and its amplifier. This stage receives the control signal which gets compared to the internal voltage reference, resulting in an output suitable to drive the high or low side drivers. The output stage is composed of two high-speed insulated-gate drivers and their associated logic circuits. Finally, the third part is the output control stage, which monitors the output voltage and supplies it to the output drivers. Additionally, the output drivers are protected from over-current and over-temperature conditions.

When the IR25601SPBF receives a positive control signal, the output stage drives the gates of the MOSFETs onto the appropriate potential. When the control signal is removed, the output gate drivers are disabled and the MOSFETs are shut off. The IC also has an internal voltage shift circuit which reduces the voltage applied to the gate of the high side MOSFET during a short-circuit event.

The IR25601SPBF also features two independent current limit settings. The first setting limits the peak current when a fault occurs, while the second setting allows the user to set a soft start current. When the system temperature reaches over a certain limit, the IC will shut down, protecting it from damage. This feature is especially useful in automotive applications where high temperatures may occur.

The IR25601SPBF is a versatile and robust IC that is suitable for a variety of applications in the automotive industry. Its features, such as its high-efficiency, noise immunity, and fault protection make it an ideal choice for automotive systems. With its extended operating range, it can be used in applications that require both low and high input voltage levels. This makes it an excellent choice for automotive systems such as fuel injection, engine control modules, and airbags.