APT85GR120L Discrete Semiconductor Products

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An APT85GR120L is an insulated gate bipolar transistor, or IGBT, that operates in a single-phase mode and is often used in a variety of motor control applications. The APT85GR120L is a low-capacity, low-voltage, low-power device, with maximum values of 80A, 60V, and 3.5GW. It is a fast switching device with a low internal power dissipation, making it suitable for applications that require high speed and low power.

The APT85GR120L is a vertical, floating-gate device with a single collector. It has a common-emitter current flow, with the collector-emitter voltage of the base-emitter junction of the IGBT, determining the collector current. The APT85GR120L also has an integrated anti-saturation circuit that helps to minimize the effects of avalanche breakdown and prevents severe current surges at the switching point of the device.

The application of an APT85GR120L can include motor control applications that require high switching frequencies, such as speed control and torque control of AC machines. It can also provide a low voltage and low power alternative to conventional motor controls such as BJTs, or MOSFETs. Other common application areas include high-frequency power converters, DC motor controllers, or motor controllers with relatively low switching frequencies.

The working principle of the APT85GR120L involves the cross-conduct of two diodes connected in parallel across the gate and emitter terminals. When the gate voltage is applied, the diode\'s capacitance is increased, creating a voltage shift that turns on the device for conduction. The IGBT then turns on until the gate voltage is below the current forward turn-on voltage. This creates a condition called forward blocking, and helps the IGBT to operate in a low conduction state.

The reverse blocking is achieved when the gate voltage is above the forward blocking voltage. In this condition, the device turns off, creating a low conduction state, and also helps to protect the device from potential problems by limiting the current flow. This helps to increase the reliability of the device in application areas such as motor control.

The APT85GR120L is an IGBT device with a fast switching speed that provides a wide range of levels of conduction. It has a low internal power dissipation and is suitable for low-power and low-voltage applications. Its integrated anti-saturation circuit helps to prevent severe current surges, making it suitable for motor control applications and high-frequency power conversion. Additionally, its reverse blocking feature helps to increase the reliability of the device in application areas such as motor control.

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