FAN7390AMX1 Integrated Circuits (ICs)

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The FAN7390AMX1 is a monolithic integrated circuit (IC) which belongs to the power management IC (PMIC) - gate driver family. It is designed to provide precise output voltage, built-in temperature compensation, and a low-current shutdown feature. This PMIC comes with an integrated drive and protection circuit that is designed to drive a wide variety of loads.

FAN7390AMX1 Application Field

The FAN7390AMX1 is primarily designed for applications in motor control, any AC to DC or DC to DC converter circuit, and the commercial light dimming. The motor control applications include drives for fan motors, electric windows, and pumps. The AC or DC converters include switching power supplies and linear power supplies. The dimming applications enable the visibility of the lights to be adjusted.

FAN7390AMX1 Working Principle

The FAN7390AMX1 integrates a reference voltage, an error amplifier, two control comparators, and two drive channels inside a single package. This error amplifier and control signals are the core of this IC and they are used to generate and maintain a regulated output voltage.

When the output voltage exceeds the reference voltage, an error signal is produced by the internal voltage difference between the two. The error signal is amplified and then used as an input for the control comparators. The output of these comparators is supplied to the drive channels.

The outputs of the drive channels are connected to the switching devices of the circuit. Depending on the control logic, the switching devices are alternated and the current flow is changed to generate a new regulated output voltage. This cycle of the error signal generation, control comparators activation, and output voltage adjustment is repeated until the desired output voltage is reached and maintained.

The FAN7390AMX1 also features a low current shutdown mode. This mode can be activated by a logic signal to reduce the operating current when the output voltage is not in use.

The FAN7390AMX1 provides reliable performance in a wide range of applications. With its wide range of features, this PMIC is the ideal choice for motor control, AC and DC conversion, and light dimming.

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