FAN7535M

FAN7535M Application Field and Working Principle

The FAN7535M is a cost-effective and intelligent primary side-regulating offline LED lighting control solution (PMIC) suitable for a wide range of modern lighting systems. It features a highly efficient and accurate switching frequency in a wide range of applications and provides constant current drive to lighting systems by means of Pulse-Width Modulation (PWM). It supports multiple lighting control operations, including Analog Dimming and Flicker-Free Digital Dimming. The device is ideal for powering wide range of LED lighting applications, such as Street Lights, Tube Lights, Task lights, Ceiling Lights, Outdoor Lighting, Down Lights, Wall Scones, Spot lights and Underwater Lighting.

Product Overview

The FAN7535M is a Primary-side LED lighting control solution built around an advanced Peak-Mode-Control. The device comes with high precision analog dimming for controlling LED luminance in DC operating mode. Its advanced EMI filter eliminates high frequency oscillations, ensuring smooth operation and high efficiency. The device integrates selective startup and hiccup shutdown protection, while its built-in error amplifier feature helps to reduce power dissipations and losses. Additionally, the device has primary side-regulation features such as harmonic compensation, thermal compensation and over-voltage protection. The FAN7535M also features Digital Dimming with flicker-free operation suitable for LED lighting.

Applications

• Tube Lights
• Ceiling Lights
• Outdoor Lighting
• Down Lights
• Wall Scones
• Spot lights
• Underwater Lighting

Working Principle

The FAN7535M PMIC controls the output current of a power supply by adjusting the switching frequency and pulse width modulation of the power devices. It monitors the primary-side voltage of the power source to determine the operating conditions and the output current. Based on this information, the PMIC will adjust the PWM duty cycle to control the output current and voltage to the required level. The FAN7535M also includes a line EMI filter that eliminates high-frequency oscillations and ensures smooth operations. Additionally, the FAN7535M supports digital dimming, allowing for dimming without sacrificing efficiency and increasing the life-span of the LEDs.

The FAN7535M is suitable for applications ranging from home lighting to street lighting, where a low harmonic distortion, wide input voltage range, high efficiency and reliable operation are needed. The device is also great for use in a variety of demanding industrial and commercial applications.

Conclusion

The FAN7535M is a low cost, high performance, and energy efficient solution for powering LED lighting, suitable for a wide range of applications. Its built-in error amplifier, digital dimming, Analog dimming, and EMI filter help provide low harmonic distortion, accurate control of LED luminance, and reliable operation in a wide range of operating conditions. As such, the device is a great choice for energy efficient LED lighting solutions that require high performance and reliable operation.