IR21366SPBF

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IR21366SPBF Application Field and Working Principle

The IR21366SPBF is a PMIC - Gate Driver IC from Infineon Technologies. It is part of a number of gate drivers available from Infineon-based Power ICs family. This IC can provide efficient and reliable control of a variety of motor drive systems, including stepper motors, DC brushless motors, and switched reluctance motors. It integrates many of the functions needed to drive a variety of Brushless DC motors (BLDC) applications.

The IR21366SPBF is designed to reduce the need for external components, including reducing the amount of board space and power dissipation. The IC comes in two versions, the SPBF (Single Pulse Built-in FET) and the MPBF (Multi Pulse Built-in FET). The SPBF version features an internal driver FET with added current sense, while the MPBF has two driver FETs as well as motoring power.

Key Features

• Internal driver FET with added current sense (SPBF version only).
• Integrated dual gate driver high side and low side.
• High frequency PWM allow excellent transition between low and high states.
• Over current protection.
• Adjustable turn-on/off slew rate.
• Over-temperature protection.
• Multiple Motor Control Interface (MCI) modes.
• Modular digital control circuit.

Applications

• Power inverters.
• Solar inverters.
• DC motor drives.
• AC motor drives.
• General motor control systems.
• Stepper motor drives.
• AC/DC adapter control.
• Switched reluctance motor drives.

Working Principle

The IR21366SPBF IC operates by converting digital level signals into high-voltage power signals. The IC has two Gate Drivers, one high side and one low side. The high side driver receives a digital level input signal and convert it into a high voltage power signal to control the high side FET. The low side driver receives a digital level input signal, and convert it into a low voltage power signal to control the low side MOSFET. The IC also provides current sense and over-current protection.

The IC has two operating modes, the Single Pulse Built-in FET (SPBF) and the Multi Pulse Built-in FET (MPBF). In SPBF mode, the IC will provide a single pulse to the gate of the FET, which controls the motor in a servo manner. In MPBF mode, the IC will provide multiple pulses to control the motor. The number of pulses will depend on the application requirements.

The IR21366SPBF is a powerful and efficient IC for motor control applications, providing a robust and reliable solution for a variety of motor drive systems. It enables high-efficiency operation, superior motor control performance, and improved system reliability. It is an ideal choice for industrial and consumer motor control applications.

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