MIC2845A-PPYMT-TR Integrated Circuits (ICs)

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The MIC2845A-PPYMT-TR is a high-performance LED driver developed by Micrel Semiconductor for driving high-power LEDs used in many applications. The product is an integrated power management solution with a combination of a high-efficiency buck regulator, an N-Channel MOSFET as a low-side switch and a shutdown control. The MIC2845A-PPYMT-TR is capable of driving up to 4.0A of current, making it ideal for high power LED applications.

The primary purpose of the MIC2845A-PPYMT-TR LED driver is to provide a constant current to drive high power LED’s at their optimal performance. The device is configured to operate up to 0.9V to 16V of input voltage and is capable of switching up to 4A of continuous current. The device is optimized to provide a constant current source, making sure that the LED’s brightness is consistent regardless of the input voltage. The MIC2845A-PPYMT-TR includes several features to further optimize the power delivery to the LEDs.

The first feature of the MIC2845A-PPYMT-TR is its adjustable current limit. The device includes an adjustable current limit setting and allows users to configure the limit from 0.6A to 4A. This ensures that the device will not exceed the current rating of the LEDs and effectively protects the LEDs from overheating. The device also includes an I2C interface for programming the current limit and controlling the power supply.

The second feature of the MIC2845A-PPYMT-TR is its pulse width modulation (PWM) control. The device includes an internal minimum on and off time PWM converter. This provides an accurate control of the LED’s brightness and allows the user to configure the LED’s brightness level with a PWM signal from 0.0V to 5.0V. The PWM control also eliminates the need for an external PWM controller and allows for a more versatile LED driver system.

The final feature of the MIC2845A-PPYMT-TR is its shut down control. This allows the user to control when the device is turned on and off, eliminating the need for an external circuit to handle shut down control. The shut down control is activated with a logic low signal and can be used to turn the device off when the system is not active.

The MIC2845A-PPYMT-TR can be used in a wide range of lighting applications, including street lights, landscape lighting, architectural lighting, automotive lighting and other applications. The device is optimized to drive high power LED’s and is ideal for applications that require a constant current source. The device also provides a cost-effective solution for lighting applications that require reliable, energy-efficient solutions.

The MIC2845A-PPYMT-TR is a high-performance LED driver that offers a combination of features to control and improve the performance of high power LEDs. The adjustable current limit, PWM control and shut down control allow users to configure their LED driver system to best meet the needs of their particular application. By providing an integrated power management solution and reliable performance, the MIC2845A-PPYMT-TR is an ideal choice for a wide range of LED lighting applications.

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