LTC4444HMS8E#TRPBF

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The LTC4444HMS8E#TRPBF is a high-speed high-side/low-side dual MOSFET driver with independent shift register control. This fully integrated IC is part of the Power Management Integrated Circuit (PMIC) and Gate Driver family of products. It is designed to drive N-channel and P-channel MOSFETs with a current rating of 2.5 A. The LTC4444HMS8E#TRPBF features both single-ended and push-pull outputs, enabling it to provide high current capability with low losses and peak efficiency. Its independent shift register control allows for variable switching frequency and easy connection of outputs to loads.

The LTC4444HMS8E#TRPBF is designed for use in applications such as AC/DC and DC/DC converters, phase-shifted full bridge drivers, H-bridges, battery chargers, chargers for microprocessor cores and oscillator circuits. It can also be used for a variety of other applications where MOSFET drivers are needed. Its high speed and low resistance make it ideal for use in high-frequency applications.

The LTC4444HMS8E#TRPBF features a patented gate charge return circuit which improves switching efficiency and system reliability. This circuit ensures that the driver returns stored gate charge to the source when the load is disconnected, eliminating the need for separate gate discharge circuits. The circuit provides protection against shoot through current and improved noise immunity. In addition, the device is designed for easy connection of the MOSFETs to the drivers.

The LTC4444HMS8E#TRPBF operates on a supply voltage from 2.7V up to 5.5V and features a wide operating temperature range of −40°C to +125°C. It has undervoltage lockout (UVLO) with a hysteresis of 1.5V that turns off the drivers when the input voltage falls below 2.0V. This feature helps to protect the load and MOSFETs in case of power supply failure.

The LTC4444HMS8E#TRPBF features a high-side and low-side output with independent shift register control. The outputs are adjustable with a current limit of 2.5A which provides current limiting protection and allows for variable switching frequency. The output drivers also feature overvoltage latching (OVL), overcurrent latching (OCL), short-circuit protection and thermal shut-down. The device also features built-in synchronous rectifiers for improved efficiency and reduced power dissipation.

The LTC4444HMS8E#TRPBF is a highly integrated, high-performance dual MOSFET driver designed for a variety of applications. It is capable of driving N-channel and P-channel MOSFETs with a current rating of 2.5A. Its wide operating temperature range, independent shift register control and integrated protection features make it an ideal choice for a wide range of power management applications.

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