BTS7904SAKSA1

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The BTS7904SAKSA1 is a high-current, high-voltage power MOSFET array designed for switching circuits in industrial and automotive applications.

This array integrates four P-channel power MOSFETs, each rated at 78 A (maximum) and −45 V (maximum) with a dielectric strength of 350 V. It is designed to serve as a small and powerful integrated switch. The four MOSFETs, the associated control circuits, an ESD protection diode, and a current sensing resistor are designed on one monolithic chip in a standard SO-8 package.

Application Field

The BTS7904SAKSA1 can be used for a variety of applications, such as HVAC systems, home appliances, motors and pumps, automotive systems, and any other high-load circuit that requires a dedicated power MOSFET switch. It is capable of switching up to 30 W of load current and can handle up to 700 V of peak voltage.

Working Principle

The BTS7904SAKSA1 switches the MOSFETs on and off using a logic level control signal. To turn the MOSFETs off, the logic level control is pulled to ground. To turn the MOSFETs on, the logic level control is pulled to an appropriate supply voltage. During an on state, the MOSFETs will conduct current only when the voltage drop across the drain and source is greater than the threshold voltage.

The BTS7904SAKSA1 also provides a current sensing resistor which can be used to measure the output current by measuring the voltage drop across the resistor. This helps the user to maintain the desired current levels and control the power dissipation while consuming less power from the input supply.

The ESD protection diode in the package protects the circuit from electromagnetic interference and helps maintain the integrity of the logic signals for reliable operation.

In summary, the BTS7904SAKSA1 is a powerful, reliable, and cost-effective MOSFET switch for high-load applications. It is easy to integrate, consumes little power from the input supply, and its highly-integrated design offers improved temperature control, low-drop control voltages, and high-speed operation.

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