TSCR402CX6 RFG

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PMIC – LED drivers are widely used to control the brightness, dimming, and other functions related to LED lights. Among these drivers, the TSCR402CX6 RFG is a special type of LED driver that offers a broad range of features and advantages. This article will explain its application field as well as its operating principles.

The TSCR402CX6 RFG is an integrated LED driver for both mono- and bi-color LED applications. It is designed to control both the current intensity and the forward voltage of the LED. The device integrates an on-board power-down pin, enabling fast LED dimming (down to 20% of the LED’s initial intensity) along with Over Voltage Protection (OVP) and Soft-Start technology. Additionally, it has an automatic shutdown feature that can shut down the LED when the temperature sensor or the current protection circuit detects over temperature or over current.

The TSCR402CX6 RFG is ideal for use in applications such as backlighting panels, signage, decorative lighting, automotive lighting, and more. It can be used to drive a wide range of LEDs, including the latest high efficiency UV, IR and white LEDs. The device is particularly suitable for automotive interior and exterior lighting, as it enables fast dimming, fully integrated over-temperature protection, and low standby power consumption.

In terms of working principles, the TSCR402CX6 RFG relies on the direct connection of an external MOSFET and a current source/sink as its main components. The internal power management regulates the output switch to be either an open or a closed loop. The on-board MOSFET is responsible for the current detection and is used to provide current feedback to the power management. The power management then regulates the output current when internal over-current protection is triggered.

The device also has an automatic shutdown function. This function allows the system to shut down a LED when the internal temperature sensor or external current detection circuit detects a temperature or current overshoot. Finally, the TSCR402CX6 RFG also has a built-in soft-start feature, which helps reduce the inrush current.

In summary, the TSCR402CX6 RFG is an excellent choice for LED lighting applications due to its wide range of features, including dimming, Over Voltage Protection, soft-start technology, fast LED dimming, over temperature protection and low standby power consumption. It is ideal for many types of LED lighting applications and can be used to drive a wide range of LED types, including the highest efficiency UV, IR and white LEDs. Its working principle is based on the direct connection of an external MOSFET and a current source/sink, while its automatic shutdown feature helps to protect the LED from damage when over temperature or over current is detected.

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