ISL89161FRTAZ-T

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The ISL89161FRTAZ-T is a advanced single channel gate driver dedicated for driving power MOSFETs & IGBTs in PSU, adapter and motor driver applications. A robust & logic-level independent gate driver with multiple built-in protection features like Overvoltage protection (OVP), In-rush current limit (ICL), Short circuit protection (SCP) and Thermal shut-down (TSD). This device is ideal for applications such as AC/DC, LLC, Buck-Boost and PFC, resonant topologies, and general purpose power supplies.

The ISL89161FRTAZ-T is a high-performance, fully integrated, single-channel MOSFET driver optimized for use in power applications. It incorporates an advanced high- and low-side gate driver with an output control logic block. The logic block provides logic-level independent gate drivers with various protection features. The advanced high-side gate driver has programmable current limit, fast slew rate, and RDS(ON) adaptation to minimize the power dissipation in the MOSFETs.

The device is optimized to provide high switching speeds and low form factor, enabling higher efficiency in applications with high frequencies. With a wide operating voltage range from 2.5V to 20V, it can drive MOSFETs and IGBTs with Rds(on) up to 2Ω. The primary protection feature is OVP (Over Voltage Protection) which limits the voltage on the gate drive to the safe operating range. ICL (Inrush Current Limit) protects the power MOSFETs from high inrush current. SCP (Short Circuit Protection) prevents the power FETs from being damaged by the high voltage across its terminals while the TSD (Thermal Shut Down) shuts down the driver in case of over temperature.

The gate driver IC supports various logic levels (3.3V and 5V) and variable switching speeds, making it suitable for Buck, Boost, Buck-Boost, and LLC converters. The logic level independent gate drivers allow for versatility in the choice of free-wheeling diodes and power stages for the power supply design. The gate driver IC also offers multiple built-in protections to help ensure safe operation from an overload or short circuit situation.

The ISL89161FRTAZ-T can be used in a variety of applications, including AC-DC and DC-DC power supplies for consumer, industrial, computing and automotive applications. It is also ideal for use in motor drives, PC board applications and any other application that requires high-performance gate drivers. The 1.2A sourcing and sinking capability of this device make it suitable for driving power MOSFETs & IGBTs. Additionally, the logic input options (3.3V and 5V) allow for increased design flexibility.

The ISL89161FRTAZ-T driver is configured to start switch this types of power train and MOSFETs. When the start sequence is initiated and the logic input goes low, then the low side MOSFETs get ON and the OVP feature prevent the MOSFETs and gate driver IC from any damage due to a high voltage. The input logic can be set to 3.3V or 5V, depending on the choice of the user. The ICL feature limits the in-rush current when the power-on sequence is triggered. The short circuit protection (SCP) and thermal shutdown (TSD) provide the protection from any over current or over temperature situation.

Overall, the ISL89161FRTAZ-T device is a robust single channel gate driver solution for power MOSFETs & IGBTs in PSU, adapter and motor driver applications. It is an ideal solution for applications, such as AC/DC, LLC, Buck-Boost and PFC, resonant topologies, and general purpose power supplies. With a wide range of protection features, the ISL89161FRTAZ-T is the perfect choice for any high performance, high efficiency power switching application.

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