ISL89164FRTCZ-T

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ISL89164FRTCZ-T is a single-channel, low-side gate driver integrated circuit (IC) that enables feeding of power switches such as MOSFETs, IGBTs, and diodes. It has two low-side drivers, one high-side driver, and an integrated bootstrap diode. It is designed to be ideal for driving N-channel MOSFETs in a synchronous buck, boost, or flyback applications in motor control, lighting, power supply, and many other applications. This low-side gate driver IC has a built-in routing switch, which allows the voltage of the power switch to be monitored in order to ensure that the switch is efficiently driving the load. Additionally, it has an output short-circuit detection (SCD) circuitry, which is used to detect output short-circuits and provide a signal to the microcontroller for safety protection. This IC also has built-in temperature sensing which allows it to detect temperature conditions in order to prevent thermal damage.

The main application field of the ISL89164FRTCZ-T low-side gate driver IC is in synchronous buck, boost, or flyback applications that employ N-channel MOSFETs. It provides reliable drive to the power switches while minimizing the number of components in the system. It can be used with a wide range of switching frequencies, up to 2MHz, making it suitable for a variety of high-frequency circuits. Furthermore, it can be configured with soft start, hysteretic current control, programmable overcurrent protection, output overvoltage protection, and over temperature protection. Due to its high degree of integration and robust features, it is an ideal choice for motor control, lighting, power supply, and many other applications where reliable and efficient power switch driving is needed.

The ISL89164FRTCZ-T IC functions by providing a low-side drive voltage to the power switch (MOSFET, IGBT, diode, etc). This voltage is controlled by the MOSFET’s gate-source voltage, which is determined by the control logic input. When the control logic input is high, the MOSFET is turned on and the output is consequently driven by the low-side driver. When the control logic input is low, the MOSFET is turned off, which in turn shuts off the output. The IC also includes an integrated bootstrap diode, which allows it to provide an elevated voltage drive to the power switch gate when the switch is off. This ensures that the power switch can achieve maximum turn-on times while reducing power losses due to the bootstrap diode. Additionally, the IC features an on-chip monitoring circuit and output short-circuit detection (SCD) circuitry, which monitors the voltage of the power switch gate and provides a signal to the microcontroller for safety protection when an output short occurs.

The ISL89164FRTCZ-T IC is particularly well-suited for applications requiring high power switch driving efficiency and reliability. It enables minimal losses and overloading of the power switch due to its low standby current and integrated bootstrap diode. Moreover, its built-in monitoring circuitry and output short-circuit detection (SCD) circuitry provide an added layer of protection and allow for quick response and protection against short-circuits. Due to its robust features, high degree of integration, wide range of switching frequencies, low standby current, and short-circuit detection (SCD) circuitry, the ISL89164FRTCZ-T is an ideal choice for many motor control, lighting, and power supply applications.

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