S-8354A27MA-JQMT1G

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The PMIC - Voltage Regulators - DC DC Switching Regulators S-8354A27MA-JQMT1G is a low-cost, low operating-voltage, high-efficiency DC/DC converter designed for high-reliability consumer and industrial applications. The device offers a wide input voltage range and a wide output voltage range (3.3V to 21V). Features on the device include an onboard Integrated Motor Controller, PWM control, adjustable output voltage, and over-current protection.

The device\'s overall architecture is a buck converter circuit, consisting of an inductor, a switch, and input and output filters. The inductor acts as a reservoir and transformer, both providing and storing the energy required for an output voltage change. The inductor\'s location is important as it affects the conversion efficiency. The switch is a transistor with a gate voltage control, and it is used to regulate the amount of energy that is released from the reservoir. The input and output filters sift out any high-frequency components from the input and output voltages.

The S-8354A27MA-JQMT1G offers an Adaptive ON-Time control, which is a unique feature of this device. This allows the device to adjust the output voltage according to the desired load current. The ON-Time of the switch is adjusted according to the desired load current, thus optimizing the power conversion efficiency.

The device also features an Integrated Motor Control which allows it to control a BLDC (brushless direct current) or a DC motor. This feature is supported by several available modes of operations such as PWM, Vss (velocity) sensored, field current sensored, and Hall signals sensored. The PWM (pulse width modulation) mode is the most common one and it controls the motor speed by varying the ON-Time width of the switch. The other modes are used for more complex speed control operations.

The device also has an adjustable output voltage, which can be configured via a digital or an analog interface. This allows the device to be programmed to output a specific voltage without the need for external components.

The S-8354A27MA-JQMT1G is designed to offer reliable operation, and it has several safety features to protect the device from over-current and over-voltage conditions. These features also provide protection to any system connected to the device by limiting the output current and voltage if an over-current or over-voltage condition occurs. This ensures that all connected equipment is safe from these conditions, making the S-8354A27MA-JQMT1G an ideal choice for a variety of applications such as motor control, automotive and industrial control, and power supplies.

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