TDE1708DFT

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The TDE1708DFT is a field-effect transistor (FET) device used in power distribution switching applications. It is used to switch high-voltage currents between positive and negative terminals in order to distribute the power from a central source. Additionally, it can provide a voltage or current signal to a load driver in order to control the current flow from the power source. This device integrates a gate driver circuit and also provides built-in protection circuits for over-voltage, over-current and over-temperature.The TDE1708DFT operates at a monolithic process technology. It features an 18V N-channel power FET with a high voltage (HV) operating temperature range of -40°C to +125°C. The device is designed to meet the most demanding safety and reliability requirements and is suitable for automotive and industrial applications.The TDE1708DFT has a power-on reset circuit, which ensures a reliable transition from power-on to normal operation. This is accomplished by keeping a FET in the off-state while the reset condition is active, and then releasing the FET to the on-state after the reset circuit detects the power supply has risen to its normal level. This feature eliminates any in-rush current during power-on, minimizing the risk of stress on the system.The device also has a built-in over-voltage protection circuit, which senses any abnormally high voltage above the maximum operating voltage of the FET and immediately shuts down the FET. This helps prevent any power supply failures due to over-voltage or induced electrical noise.The FET is controlled by a gate driver circuit, which is responsible for providing a control signal to the FET that allows it to be switched from the on-state to the off-state. The TDE1708DFT has an on-chip gate driver circuit, which consists of two high-side and two low-side N-channel MOSFETs. The gate driver circuit is designed to drive the FETs with high-side and low-side complementary signals, allowing for versatility and flexibility in controlling the FETs.In addition to the gate driver circuit, the TDE1708DFT features an over-current protection circuit and a thermal protection circuit. The over-current protection circuit monitors the current in the system and will shut down the FETs if the current exceeds a predetermined threshold. The thermal protection circuit will shut down the FETs if the temperature of the system exceeds a predetermined maximum temperature. This ensures that the system does not suffer any damage due to over-current or over-temperature events.In conclusion, the TDE1708DFT is a field-effect power distribution switch and load driver device that is designed for high-voltage switching applications. It has an integrated gate driver circuit, as well as built in over-voltage, over-current, and thermal protection circuits, making it suitable for a wide range of applications. It is a reliable solution for power distribution and load driving applications, and has the reliability and safety features necessary to meet the industry’s most demanding requirements.

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