IR21362SPBF

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The IR21362SPBF is a synchronous buck gate driver. It is one of many related devices from the family of gate drivers from International Rectifier. This gate driver is used in applications that require high efficiency switching with fast transient performance. It is especially suitable for automotive, space-constrained power supplies, motor control, and lighting applications.

The IR21362SPBF is designed to drive the gate voltage of an external power device, such as a MOSFET or IGBT, thus providing the switching control signals required to operate it. This particular device can supply a nominal peak output current of 5 A to the external power switch, and can operate from a supply voltage anywhere between 4.5 V and 18 V. The device also has a power-on reset and a high-side pre-charge function which provide additional protection to the system in event of fault conditions.

At its core, the IR21362SPBF works on the principle of pulse-width modulation (PWM) switching to control the output voltage for applications. A controller IC, such as the IR2163, along with external components, form a complete PWM switching circuit. Depending on the system requirements, the controller IC then generates the corresponding PWM signals that are fed to the gate driver. The gate driver then amplifies and levels the PWM signals from the controller IC to switch the external power device on and off according to the desired voltage level.

In applications that require a greater output current than 5 A, the IR21362SPBF can be used in parallel with other gate driver ICs. Its wide operating temperature range of -40°C to +150°C makes it suitable for use in demanding environments, such as in automotive and industrial applications. Additionally, the device provides short circuit and thermal protection thanks to its over-current, overload and overtemperature protection features.

The IR21362SPBF also offers other benefits, such as a high impedance fault shutdown pin that allows the device to be quickly shut down in the event of a fault without having to disconnect the main power supply. Additionally, a high-speed internal compensation network ensures stable frequency and precise voltage regulation when operating in various temperature environments.

In summary, the IR21362SPBF is a robust, high-performance synchronous buck gate driver device. It is suitable for use in applications that require high efficiency switching, fast transient performance, and a wide operating temperature range. Its features make it suitable for use in environments such as automotive, space-constrained, motor control and lighting applications.

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