RT8470GSP

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LED light has become the mainstream of energy-saving lighting these years. Power supply IC driver is one of the indispensable key components in LED circuit. The RT8470GSP LED driver IC, which created by Richtek, is specially designed for high-end LED lighting system. With features of PWM dimming interface, input overvoltage protection, output short to V S protection, it can ensure durability and quality of LED system.

Overview

The RT8470GSP is a high-side integrated high voltage step-down conversion controller IC. It integrates driver, high voltage regulator and level shifter circuit into single IC and provides synchronization PWM dimming function, which makes it suitable for high-end LED lighting system. It can be configured as a synchronized buck converter up to 40V input voltage and 60V output voltage.

Features

• Wide input voltage range up to 40V pin to pin
• Output voltage up to 60V pin to pin
• Programmable 24kHz to 240kHz switching frequency
• Synchronizable PWM dimming function
• Gate driving voltage up to 15V
• Build in input under voltage lockout
• Build in over current protection (OCP) and over temperature protection (OTP)
• Output open load protection
• Output short to V S protection

Working Principle

The RT8470GSP is a type of switched-mode DC-DC converter. It uses the principle of pulse width modulation (PWM) to convert DC voltage from one range to another. It works in two states: the conduction state and the non-conduction state. In the conduction state, the power switch is on, the input voltage is connected to the output voltage, and the inductor and capacitor charge up to the proper voltage. In the non-conduction state, the power switch is off and the inductor releases its stored energy to the output voltage. This process is repeated periodically, and the output voltage is regulated through controlling the duty cycle of the power switch.

Applications

The RT8470GSP IC is suitable for high voltage LED lighting system and it can be applied in LED pow er supplies, LED street lights, LED residential lighting, LED down lighting, LED landscape lighting and LED spotlights. With its programmable 24kHz to 240kHz switching frequency, it is highly efficient and high-end LED lighting system.

Conclusion

The Richtek RT8470GSP LED driver IC is a highly efficient and high-end LED lighting IC which is suitable for high voltage LED lighting system. It has integrated driver, high voltage regulator and level shifter circuit into single IC and provides synchronization PWM dimming function. Its application fields cover from LED power supplies to LED street lights, from LED residential lighting to LED down lighting.

The specific data is subject to PDF, and the above content is for reference