L4004F52

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Thyristors - TRIACs

The L4004F52 TRIAC is a four-quadrant ac/dc controller specifically designed for controlling three-phase AC motors.

It has two logic inputs—the firing pulse and the reset signal. When the firing pulse is high, a voltage at the anode of the TRIAC causes current to flow in the gate of the device. This triggers the SCR into an on state, allowing the motor current to flow.

The reset signal is used to reset the TRIAC, forcing it into its default off state. This enables the motor to be quickly shut down. The reset signal does not need to be active when the firing pulse is low.

The L4004F52 is a thyristor-based AC/DC control device that includes a high-speed power transistor for controlling high-power loads in industrial and commercial applications. The high-power transistor acts as a switch that can turn ON or OFF the main power to the load. The power transistor is triggered by the low voltage from the TRIAC to the gate electrode of a thyristor.

The L4004F52 is a fast switching device with a rated current of up to 12A. It has a 2-channel firing per power cycle, with one channel firing when the TRIAC is gated up and the other channel firing when the TRIAC is gated off.

The device is designed to work in applications with a range of voltages, including 220V AC and 380V AC, as well as in applications with power up to 25kW. The maximum switching frequency is 1kHz, with a maximum rise time of 7ms and a maximum fall time of 4ms.

The L4004F52 has an operating temperature range of -20⁰C to +85⁰C and is certified for use in hazardous areas. It is available in a compact package, with a height of only 3.6cm and a width of 5.6cm. The device also has a built-in thermal protection and conforms to IEC 60529, EN 60994 and UL 1789 standards.

The L4004F52 is a powerful device that can be used to control ac/dc loads, motors and power supplies in industrial and commercial applications. The device provides a reliable and safe solution to the challenging task of controlling high-power loads.

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