MAX8791GTA+

PMIC - Gate Drivers are an important type of semiconductor device used for controlling electrical signals such as those found in the power, communications, and industrial automation markets. The MAX8791GTA+ is a specialized PMIC - Gate Driver from Maxim Integrated. It is designed to drive small, medium power, and high power switching devices, including large-current NFETs, PCHs, and IGBTs.

1 Applications

The MAX8791GTA+ is suitable for a variety of applications. It can be used to provide reliable, high-power switching in a variety of applications, including DC/DC converters, home appliances, industrial, automation, and transportation systems. It is also suitable for automotive, medical and telecommunications applications. Additionally, the MAX8791GTA+ is designed to drive IGBTs and PCHs that utilize high-frequency switching and can be used in charging systems, power supplies, motor drivers, and inverters.

2 Working principle

The MAX8791GTA+ is an advanced PMIC - Gate Driver that uses a powerful internal pre-driver circuit to precisely drive high power devices. It is optimized for high-speed, high-current switching and utilizes a low-side switch and an internal high-side switch to provide precise triggering control and short-circuit protection. The device is designed to accommodate one or two power device configurations and features adjustable dead time and shoot-through protection. In addition, the device features an adjustable fault current limit and independent open drain gate drive outputs.

The MAX8791GTA+ utilizes a wide range of input voltage and is capable of driving a wide range of PWW devices, including NFETs, PCHs, and IGBTs. Its internal low-side switch has a deadtime of only 5ns, allowing for fast and precise control of the gate drive signals. The integrated high-side switch can source and sink as much as 1.4A current. Its feature set includes a number of fault tolerant and diagnostic modes, ensuring a reliable control of the switching devices.

3 Additional features

In addition to its core features, the MAX8791GTA+ also offers a number of additional features and options. It features a latch-off diagnostic mode and adjustable under-voltage lockout. It also has an adjustable low-side output current limit, and integrated pre-driver circuitry with a peak output current of 550mA. The device is designed to promote low quiescent current and efficient power dissipation. It is rated for operation over a temperature range of -40°C to 125°C.

The MAX8791GTA+ utilizes a serial peripheral interface (SPI) for programming, allowing for remote configuration and diagnostics. The device is offered in a 16-pin powerTDFN package and is priced at an affordable price point, making it suitable for a wide range of practical applications.

The MAX8791GTA+ is an advanced PMIC - Gate Driver from Maxim Integrated that is used for high power switching applications. Its feature set includes a low-side switch and internal high-side switch for precise triggering control, adjustable fault current limit, adjustable dead time and shoot-through protection, adjustable under-voltage lockout, latch-off diagnostic mode, and SPI programming. It is suited for a variety of automotive, medical and telecommunications applications, and is offered in a 16-pin powerTDFN package.