L6395D

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Dreamgeeks L6395D is one of the most typically used gate drivers in the field of Power Management ICs (PMICs), which is designed to drive MOSFETs and IGBTs in motor control applications. This specific gate driver is unique in its high-side drive capability for reliable snubberless operation, providing a complete and protected gate driver solution for improved efficiency.

The L6395D gate driver is particularly suitable for automotive, industrial, consumer and medical equipment applications, thanks to its high-side drive capability. It operates from a wide supply voltage range from 8V to 35V, which is much wider than traditional MOSFET driver designs. Further, the L6395D provides wide safety margins for reliable operation in noisy environments.

The L6395D integrates over-voltage, over-current and overtemperature protection to ensure safe operation in motor control applications. It supports bidirectional communication (Up/Down), and offers a significant, low device-on resistance of 1.7 Ω. Besides, this specific device provides the capability of monitoring both input and output current through analog current sensing.

The L6395D also has an integrated diagnostic feature that monitors both outputs of the device to ensure no cross connections between high-side and low-side. This device is designed to be controlled using a logic signal sourced from a microcontroller, and it supports a wide array of logic transition frequencies from 10 kHz to 2 MHz.

The working principle of the L6395D lies in its unique circuit design, which is united with a focused snubberless capability. Its MOSFET driver includes a P-channel MOSFET in the totem pole configuration to drive the high-side switch. This P-channel MOSFET turns off when grounded, and also helps with bi-directional communication by shuttling current between the high-side and low-side drivers.

The other key part of the L6395D is its N-channel MOSFET, which provides an extra level of protection to the gate driver by blocking current flow between the high-side and low-side channels. The N-channel MOSFET also helps in controlling the power losses associated with the high-side MOSFET turn off.

In conclusion, the Dreamgeeks L6395D is one of the most reliable gate drivers available in the PMIC field. This device is designed to drive both IGBTs and MOSFETs in motor control applications, and provides a complete and protected gate driver solution for improved efficiency. Moreover, the device features an integrated diagnostic feature to monitor both outputs, as well as an over-voltage, over-current, and overtemperature protection for reliable operation. This device offers a low device-on resistance, and supports bidirectional communication, along with a wide supply voltage range.

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