IRS21084PBF

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IRS21084PBF is a powerful gate driver from International Rectifier Corporation. It is classified as part of PMIC (Power Management ICs) - Gate Drivers. This device is a high voltage, high speed, dual half bridge gate driver IC, featuring two separate tracks with an average output current per track of 2.2 A. It was designed for driving high voltage n-channel MOSFETs and IGBTs in power conversion applications such as switch mode power supplies, electric motor control and DC-DC converters.

The device features an integrated UVLO circuit that disables both output drivers when the input voltage falls below an internally set threshold voltage. separate logic and signal ground pins allow the use of digital signals directly without the need for signal level shifters or opto-couplers. The device also features an input signal rise time control to limit the maximum input slew rate when driving both outputs.

The device is available in both cascading type (CFS) and single channel type (SFS) packages. It operates from -12 V to +12 V supply voltage and from -25 C to +150 C ambient temperature range. The UVLO thresholds are adjustable from 1.0 V to 6.0 V for the lower threshold, and from 6.0 V to 10 V for the higher threshold. It is equipped with 6A MOSFET gate drivers capable of driving a matched logic signal from 4.5V to 6.5V range. The input logic has a wide operating temperature range from -40 C to +105 C.

The Internal Rectifier Corporation IRS21084PBF can be used in high power converters such as AC-DC converters, DC-DC converters and inverters, as well as motor control, solar power inverters and the automotive industry. The device offers a high current capability and a wide operating temperature range, making it an ideal choice for applications where fast switching and high current are required. In addition, the device is also capable of driving both normal high-side and low-side MOSFETs and can be used as a stand-alone high/low-side gate driver.

The IRS21084PBF operates in two basic configurations: linear, and pulse width modulation (PWM). When operating in linear mode, the gate driver functions like a traditional high/low side switch and is used to drive the gate of the high-side and low-side MOSFETs in a standard drain-source configuration. In PWM mode, the IRS21084PBF is used to generate high frequency PWM signals up to 2.2 A that can be used to drive the gates of an H-bridge configuration. Both types of operations are programmed by a logic input pin.

The device is configured via an enable/disable pin. When E/D is enabled, the device operates in linear mode, and when E/D is disabled, the device operates in PWM mode. On power-up, the device is in an off-state and E/D must be enabled for the device to start. The device is equipped with short-circuit, overtemperature, and over-current protection. It has an average switching frequency of 600 KHz, with a maximum switching frequency of 1.2 MHz.

In sum, the IRS21084PBF is a high voltage, high speed, dual half bridge MOSFET and IGBT gate driver IC developed by International Rectifier Corporation. It is suitable for a wide range of applications ranging from AC-DC converters, DC-DC converters, inverters, solar power inverters, motor control, and the automotive industry. It has an integrated UVLO circuit, wide operating temperature range, and is equipped with 6A MOSFET gate drivers. It has a great deal of flexibility, with linear and PWM operations programmed by a logic input pin, and E/D for enabling/disabling. The device is a great choice for applications requiring high speed and current capability.