IR2183

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IR2183 is an integrated gate driver which can provide efficient, easy-to-use, and reliable protection to power switches in many fields. The device integrates an internal current sensing, charge pump, and active Miller clamp to protect switches from failures such as overvoltage, active shoot-through and excessive drain source currents. It also includes fail-safe protection and an enable pin for overvoltage protection. This makes it an ideal choice for applications such as motor drives, LED lighting, industrial process and automotive.

The typical application field of the device is a three-phase brushless DC (BLDC) motor drives system. In such systems, the device is connected to the upper/lower power MOSFET control signals, providing active, fast and reliable high-side and low-side gate drive signals. The device is able to switch two N-channel externally supplied power MOSFETs with a minimum voltage of 9 V and a maximum voltage of 30 V.

The working principle of this device is very simple and requires just a few components. The high side and low side outputs are generated by four power NMOS transistors. The high side gate drive is generated by the upper half of the transistor pair, which is switches on and off by the High side driver pulse width modulation (PWM) signal. The low side gate drive is generated by the lower half of the transistor pair, which is switches on and off by the Low side driver PWM signal. The outputs are current mode limited and voltage limited for protection against overvoltage and overcurrent conditions.

The device also features an adjustable dead-time control circuit, which allows the user to set the amount of overlap or delay between the high and low side gate drive signal. This feature helps to protect the power switches from active shoot-through and other similar failure conditions. It also provides an internal over voltage protection circuit, which shuts off the devices when an overvoltage condition occurs. This helps to increase the reliability of the system and prevents damage due to power failures. In addition, the device features an internal current sense and an adjustable current limit, which helps to prevent damage due to excessive current.

To sum it up, IR2183 is an integrated gate driver with versatile and reliable protection for power switches in several application fields. It features an internal current sensing, charge pump, active Miller clamp and adjustable dead-time control circuit which make it an ideal choice for applications such as motor drives, LED lighting, industrial processes and automotive. It supports switches with a minimum voltage of 9 V and a maximum voltage of 30 V, and it also provides over voltage protection, current limit and fail-safe protection.

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