TC62D722FG,EL

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Modern lighting applications require reliable, efficient, and adjustable light sources. The TC62D722FG,EL from Toshiba is a highly versatile and efficient power management IC designed for LED drivers in a variety of lighting solutions. This light emitting diode (LED) driver features high-efficiency performance, superior heat dissipation and is fully integrated into a power management system. In this article, we will explore the application field and working principle of the TC62D722FG,EL LED driver.

Application Field

The Toshiba TC62D722FG,EL LED driver is designed for a variety of high-end lighting solutions. It’s a perfect match for LED lighting systems with components requiring stringent efficiency and high power density. Examples of the types of applications for the TC62D722FG,EL include industrial, automotive, and commercial lighting. The high-efficiency performance and superior heat dissipation capabilities of the TC62D722FG,EL also make it a valuable tool for outdoor lighting, as well as for applications in harsh environments such as subway stations, underground tunnels, and off-road vehicles, among others.

Working Principle

The TC62D722FG,EL driver utilizes a flyback converter with constant frequency to generate a regulated output voltage. The driver employs both hysteretic control and pulse-width modulation (PWM) control to constantly adjust its output. The hysteretic control provides a simple On/Off control, while the PWM control allows for dimming and color mixing. The primary features of the TC62D722FG,EL include programmable hysteretic mode and PWM operating modes, synchronizable output frequency and 0.5% regulation accuracy.

The TC62D722FG,EL circuit is designed in two separate stages. The first stage adjusts the input voltage to a constant output voltage and the second stage modulates the constant voltage output from the first stage. The first stage consists of an AC/DC rectifier, a primary-side flyback converter, and a light-load detection circuit. The second stage consists of a secondary-side flyback controller, an R/C divider, and a PWM modulator. The secondary-side flyback controller senses the output voltage to detect the changes of the LED load, and then adjusts the LED current accordingly.

The TC62D722FG,EL operates efficiently across a wide range of output currents with a minimum power loss of 4.7mW, even at low currents. This minimizes the power wasted as heat and allows for efficient operation in a wide range of temperatures. In addition, the TC62D722FG,EL has a Built-in LED current (IPWR) sense mechanism that simplifies the implementation of LED current control and reduces the size of the LED array.

The TC62D722FG,EL offers a wide range of features, including a wide dimming range, quick transient response, programmable soft-start and protection functions, as well as improved EMI/RFI performance. This makes the driver well suited for applications that require precise lighting control. The TC62D722FG,EL is suitable for 12V to 18V input systems, providing high efficiency and reliable performance with minimal heat dissipation.

Conclusion

The TC62D722FG,EL is a versatile and efficient LED driver from Toshiba designed for high-end light emitting solutions. The driver offers high power density, high efficiency performance and minimal heat dissipation, making it ideal for a wide range of industrial, automotive, and commercial lighting applications. With its programmable hysteretic mode and PWM operating modes, it is a valuable tool for manufacturing high-power lighting systems with precise lighting control. The built-in LED current sense control extends the dynamic range of the driver making it an excellent choice for demanding lighting solutions.

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