IX4428NTR

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The IX4428NTR is an integrated high-current multi-channel driver for advanced gate drive applications, including MOSFETs and IGBTs. It is used in Power Management Integrated Circuits (PMICs) as an integrated gate driver with built-in features such as overvoltage protection, undervoltage protection, short-circuit protection, thermal shutdown and fault lockout. The IX4428NTR features low ON-resistance, low ON-capacitance, wide operating temperature range, high EMI immunity and high speed. It is an ideal power component for automotive, industrial and consumer applications.The IX4428NTR integrates two high-current, low-side P-channel MOSFETs, a dual low-side N-channel MOSFET driver, a high-side N-channel MOSFET driver, and a low-impedance power output stage. It also includes integrated fault protection and gate drive logic functions, enabling it to safely and rapidly drive two levels of DC voltage, up to 50V. The IX4428NTR has a maximum feedback current of 1.8A and an output peak current of 6A, ensuring that all power devices connected to it are reliably driven and protected from overcurrent or short-circuit conditions.The IX4428NTR features a split-gate drivers architecture, allowing independent control of each gate to boost the efficiency, increase the switching speed, and reduce the overall input power. It has a programmable dead time control for each channel and variable slew rates for the high side and low side signals, allowing the user to customize the gate drive for their specific applications. The IX4428NTR also has built-in low-side free-wheeling and high-side oscillator circuitry to improve the EMI characteristics, reduce EMI-induced jittery switching behavior, and improve system reliability.

The IX4428NTR is an ideal choice for driving MOSFETs and IGBTs in high temperature, high voltage, and high current applications, such as power distribution, power conversion and signal switching in automotive, industrial, and consumer applications. It is also widely used for various automotive applications, such as electric power steering (EPS) and powertrain control module (PCM).

The working principle of the IX4428NTR is simple. It receives a signal from a pre-existing high side driver to activate the low side MOSFETs and the high side N-channel MOSFET driver. When activated, the low side MOSFETs and the high side N-channel MOSFET driver trigger the on-resistance between the two voltage sources, generating a voltage drop across them. This voltage drop is then used to control the operation of the device, by lowering or raising the gate voltages of the two connected MOSFETs, thus leading to the desired output. The IX4428NTR also features an integrated boost converter that helps to ensure the accuracy of the output voltage.

In conclusion, the IX4428NTR is an advanced multi-channel gate driver designed for high temperature, high voltage, and high current applications. It features a split-gate driver architecture, integrated fault protection and gate drive logic, low-side free-wheeling, and variable slew rates for the high side and low side signals. Thanks to its high- efficiency, low ON-resistance, and low ON-capacitance, the IX4428NTR provides fast and reliable operation in various applications. It is a perfect choice for automotive, consumer, and industrial applications.

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