MP4425MGQB-Z

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The MP4425MGQB-Z is a PMIC - LED driver. It is a high precision and miniature 6-channel Synchronous Buck (Step Down) Constant Current LED Driver that offers high efficiency, excellent light regulation and high accuracy over a wide voltage range. The device is specifically designed to drive high brightness LED strings that can be connected in series and/or parallel configurations. This driver supports both single LED and multiple LED configurations, and provides individual control of each LED output. The device operates from an input voltage supply from 6.0V to 40V, and provides an adaptive fast feedback voltage source of 0.7V for driving high current LED with up to 1000mA pre-regulated constant current. It has an ultra-low quiescent current of 39uA and a low operating current of 1.2mA and is feature-rich with programmable parameters such as PWM dimming ratio, cycle skip and temperature compensation features. The device also has built-in protections such as over-voltage, over-temperature and short-circuit protection. The MP4425MGQB-Z device has a spread spectrum feature which helps to reduce EMI (electromagnetic interference), while still providing a high switching frequency of up to 2.2MHz. The device has a wide range of automotive, industrial and general lighting applications such as interior decorative lighting, general lighting and signage lighting. The MP4425MGQB-Z device driver is based on a standard constant-current modulation concept. It uses the peak current mode control mechanism, which is an advanced technique used to drive high current LED strings. The peak current mode control makes sure that the LED loads are operating close to the desired DC current with minimum change of current when a load variation is encountered. The drivers also feature a dedicated control pin for each LED channel, allowing for independent control of each channel’s current. The device is also equipped with a built-in MOSFET, which simplifies the driver circuit design by eliminating the need for external MOSFETs and devices. The device also provides adjustable soft-start, short-circuit protection, and a programmable PWM signal dimming ratio of up to 80%. This ensures the LED lights are dimmed smoothly and accurately. In addition, the MP4425MGQB-Z device includes a comprehensive fault protection feature set including over-load, open-circuit and short-circuit protection. These features provide system monitoring and protection and redundancy, thereby minimizing potential damage and improving system reliability. In summary, the MP4425MGQB-Z device is a high performance, low cost and versatile LED driver, designed for use in high operational environments and offering superior protection, accurate output current and excellent regulation for long life of usage. The device is suitable for use in automotive, industrial and general lighting applications such as interior decorative lighting, general lighting and signage lighting.

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