FT8900B-RT is a specialized power management integrated circuit (PMIC) designed to drive LEDs. It has been integrated with a high level of safety, flexibility, and performance for different types of applications. In this article, we will discuss the application field of FT8900B-RT and its working principle.

Application Field of FT8900B-RT

The FT8900B-RT PMIC is mainly used in LED lighting applications, such as street lighting and commercial lighting. It can also be used for industrial and medical lighting systems, as well as for automotive applications. Additionally, this PMIC is also suitable for powering monitors and gaming machines.

The FT8900B-RT PMIC was designed to meet the highest safety standards with safety functions, such as Over Voltage Protection (OVP), Undervoltage Lockout (UVLO), and Over Temperature Protection (OTP). Moreover, this PMIC is designed to be highly efficient, with a very low no-load power consumption of less than 0.02W.

The FT8900B-RT is designed to drive voltage-current mode LEDs, low capacitance ceramic capacitors, and inductor-based power supply circuits with a maximum drive current of 15 A. It provides superior dimming performance when compared to other LED drivers, with a wide dimming range of 0.05% to 100%.

Furthermore, the FT8900B-RT PMIC is also designed to be highly reliable, with a high system MTBF (mean time between failures) of more than 440 million hours. This reliability ensures a long product lifetime, and minimizes downtime for maintenance.

Working Principle of FT8900B-RT

The FT8900B-RT is an application specific PMIC designed to provide a stable and efficient power supply for driving LEDs. It features a voltage-mode control input, which is typically controlled by an external controller IC.

When the external controller IC receives a voltage signal, it will instruct the FT8900B-RT PMIC to control the switching of the power switch MOSFETs. The FT8900B-RT PMIC will then adjust the voltage and current based on the voltage signal. This allows for precise and efficient dimming control.

The FT8900B-RT PMIC also features an innovative OVP protection mechanism. This ensures that the system does not become damaged due to a sudden increase in LED current. The PMIC will limit or reduce the LED current in order to prevent any damage to the system.

Moreover, the FT8900B-RT PMIC is designed to provide high efficiency power conversion. The power devices are configured in a totem-pole half-bridge, which results in lower conduction loss and less heat dissipation, leading to improved power efficiency.

Conclusion

In conclusion, the FT8900B-RT is a specialized PMIC designed to drive LEDs. It is suitable for multiple applications and provides superior safety, flexibility, and performance. Additionally, this PMIC features an innovative OVP protection mechanism, as well as a totem-pole half-bridge configuration for improved efficiency.