SC1405DITSTRT

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PMIC - Gate Drivers - SC1405DITSTRT Application Field and Working Principle.

SC1405DITSTRT is a gate driver that belongs to the family of PMIC - Gate Drivers. It is a high-performance device which is designed to provide a cost-effective solution to drive low-side as well as high-side power MOSFETs with enhanced flexibility and high-speed performance. This component features a fast switch with optimized performance and is therefore suitable for a wide range of markets including power electronics, motor drives, industrial, communications and automotive.

SC1405DITSTRT provides fast and accurate driver speed with a typical propagation delay of 8ns. The device operates at a wide supply voltage range from 10V to 12V and has an adjustable low-side gate driver current up to 400mA. It also features a non-overlap protection voltage (AC) up to 24V and a short-circuit protection voltage up to 32V.

The device is equipped with a wide variety of features, including advanced diagnostics systems, advanced fault detection and protection circuits and a power switch current guarantee. These features make the SC1405DITSTRT an ideal device for high power applications such as smart meters, power supplies and lighting equipment. Additionally, this component provides greater accuracy and reliability while helping to enhance system performance and reduce system costs.

The main application field of SC1405DITSTRT is in industrial and automotive electronics as a low-side or high-side gate driver. In these cases, the device is used to drive a wide variety of MOSFET transistors such as N-Channel or P-Channel MOSFETs. The device is also capable of driving IGBTs and PMOS transistors.

The working principle of SC1405DITSTRT is based on its two components – the non-overlap protection circuitry and the short-circuit protection circuitry. The non-overlap protection circuitry prevents the Mosfet from conducting a current when the gate is high and the source is low, which is usually done during load switching. The short-circuit protection circuitry ensures that a maximum current is not exceeded, which is typically done during pulse-width modulation. This ensures that the current is limited to safe levels and prevents damage to the device and other components.

The high-side gate driver circuit works by sending high voltage pulses to the gate of the MOSFET so that it can be switched on or off. The low-side gate driver circuit works by sending low voltage pulses to the gate of the MOSFET and this works in the opposite manner, enabling the MOSFET to be switched off or on. The pulse width determines the current flowing into the MOSFET and if it is too large, the current limit circuitry will kick in and limit the current to a safe limit.

In summary, SC1405DITSTRT is a versatile device designed to provide enhanced flexibility and high-speed performance for driving low-side and high-side power MOSFETs. Its diagnostic and protection features ensure reliable and accurate operation in a wide range of application, providing a cost effective solution for industrial and automotive power applications.

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