MP3398AGS-Z

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MP3398AGS-Z is an LED Driver advanced power management integrated circuit (PMIC - LED Drivers) produced by Monolithic Power Systems (MPS). The MP3398AGS-Z is a step-down DC/DC buck converter with 4 channels of high current LED output. It has an integrated 8-bit DAC and EEPROM that can be used to store the exact profile data and ensure the LED drivers function properly and predictably.

The MP3398AGS-Z is designed for use with low voltage DC systems and is ideal for applications such as LED lighting, LED dimming and LED display backlighting. It features a maximum output current of 5 A, wide input voltage from 6 V to 36 V, adjustable output switching frequency from 120 kHz to 375 kHz, and output current adjustment from 0.1 mA to 4.5 A. The MP3398AGS-Z also features over current protection, over voltage protection, and thermal shutdown for added safety and reliability.

As a DC/DC buck converter, the MP3398AGS-Z provides an efficient and cost-effective way of converting a higher input DC voltage into a lower, more stable output voltage suitable for driving LEDs. It also has a wide operating temperature range from -40°C to +85°C, making it suitable for a variety of lighting applications.

The working principle of the MP3398AGS-Z is simple and straightforward. When the input voltage is supplied, a low side current sense resistor is added to the circuit. This measures the load current and feeds back to the control circuit. The control circuit then compares this feedback signal against the stored profile data and adjusts the output voltage and/or current to match the profile. The output voltage and current is then regulated to the desired levels and maintained by the control circuit.

The MP3398AGS-Z is an ideal solution for LED lighting applications, providing high efficiency and accurate LED dimming capabilities at a competitive price. It is also suitable for other applications such as automation, security and medical devices. With its wide operating temperature range, low cost and multiple channels, the MP3398AGS-Z is an excellent choice for LED lighting designers.

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