MAX9093AKA+T

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MAX9093AKA+T is a linear-comparator, an integrated operational amplifier (op-amp) and Schmitt trigger, designed to operate from supplies up to 18V while consuming only 20μA of quiescent current. It provides good phase margin, low offset voltage, low noise, and compensation for device temperature variations. The device also provides fast settling, over-voltage protection, and high open-loop slew rate.

The MAX9093AKA+T application field includes pulse-width modulation (PWM), as well as bipolar and unipolar comparators. The device is capable of controlling up to two channels and can be used for a variety of applications, such as driving LEDs, regulating motor speed and current, or providing pulse-width modulation (PWM) regulator control.

The MAX9093AKA+T working principle is based on an input stage implemented in a rail-to-rail configuration. A non-inverting op-amp adjusts the internal gains and offset levels, allowing the output voltage and current levels to be finely tuned and optimized. This output stage is then compared with a reference and a latched output is generated.

When the high input threshold level, known as the trip level, is exceeded, the output switches to the active state and a low output voltage is produced. Conversely, when the low-threshold, known as the reset level, is exceeded the output returns to the inactive state. This creates an internal hysteresis which helps reduce noise pulses, and eliminate erratic switching between the two output states.

The MAX9093AKA+T also features a triangle wave generator which can be used to provide an adjustable over-voltage protection threshold. This feature allows the device to detect when the output voltage crosses a certain level and switch the output to an inactive state. This protection threshold is adjustable, allowing the protection to be tailored to the specific application.

In addition, the MAX9093AKA+T also features an adjustable fast settling pulse-width modulation (PWM) regulator. This regulator allows the device to be used to precisely control the output voltage, ensuring that it is always maintained within a specified range. The device also features a spread spectrum noise suppression function which helps reduce the effects of EMI on the device.

Overall, the MAX9093AKA+T is a highly versatile linear-comparator designed to provide precision control and protection in applications requiring low-noise, low-offset and low quiescent current. The device is capable of providing accurate, reliable and efficient control and protection in a variety of applications and environments.

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