U479B-MFPG3Y

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PMIC - lighting, ballast controllers constitute one of the most critical components for almost all kinds of the lighting systems. U479B-MFPG3Y is a high-voltage intelligent power regulator from Texas Instruments that monitors and adjusts the lighting level of the desired light source. It is commonly used for Power Factor Correction (PFC), fire detection, current regulation and dimming for lighting systems.

The U479B-MFPG3Y is a Compact Programmable High Voltage Power Management Integrated Circuit (PMIC), capable of controlling and encapsulating consumer lighting electronics power requirements. It is designed to help reduce the complexity, form factor and cost of consumer lighting solutions.

The U479B-MFPG3Y is designed to control the voltage and current of consumer-level lighting systems, such as LED, CFL and halogen lighting systems. It provides an adjustable output voltage setting range of 7 to 60VDC and allows the user to select an output current between 500mA to LED-rated current. It also employs over temperature protection, over current protection, and open/short circuit protection.

The U479B-MFPG3Y integrates two PWM generators, with adjustable frequency range from 1kHz to 250kHz, that can be used to dim the lighting level. The duty cycle range of each PWM generator is adjustable by 0.1% up to 99.9%.

The output of the U479B-MFPG3Y is adjustable by an external 0-10Vdc voltage or 10-bits RES Serial Peripheral Interface (SPI) communication interface. The SPI pin “DIM” is used to set the duty cycle of the integrated PWM generator. For example, the duty cycle can be varied from 0.1% to 99.9% of the desired light level.

The operating temperature range of the U479B-MFPG3Y is from -40°C to +85°C. It comes in a lead-free, 16-pin DIL package. The board size is only 4.4 x 5.3mm, making it well suited for high-volume, space-saving applications.

This compact, intelligent power management integrated circuit is the perfect solution for almost all types of consumer-level lighting systems. With its adjustable output voltage and current settings, adjustable frequency range, and wide operating temperature range, the U479B-MFPG3Y is ideal for energy-saving, cost-effective lighting solutions.

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