TS19830CS RLG

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LED (light-emitting diode) lights are widely used in various fields from general lighting to electronic displays. As the demand for higher luminous efficiency, high brightness and long life of LEDs—as well as the need for better heat dissipation, these LEDs need proper power management solutions to help them work properly. The TS19830CS RLG series from Littelfuse is a family of PMICs that feature integrated LED drivers. In this article, we will discuss the application field and working principle of the TS19830CS RLG.

Application Field of TS19830CS RLG

The TS19830CS RLG series is designed to provide fully integrated power management solutions for high performance lighting applications. It can provide power up to 36V and current up to 2A to connected LEDs, allowing it to work with a variety of LED types including white, blue and green. It can also support different types of LED string configurations (such as series and parallel strings). Furthermore, its built-in integrated protection features provide over-current, over-voltage, over temperature, and under-voltage protection for improved reliability and safety.

The TS19830CS RLG series can be used in a wide range of advanced LED-based applications, including mobile device backlight modules, sign boards, automotive interior and exterior lighting, medical equipment, and PC and wearable devices. Its compact size and low power consumption make it ideal for battery operated handheld devices.

Working Principle of TS19830CS RLG

The TS19830CS RLG is a multi-faceted power-management IC (PMIC) with integrated LED drivers. It is capable of driving multiple strings of LEDs, with each string capable of driving up to two channels. The two channels can be independently programmed for brightness control via separate input signals, and each channel supports both step and linear control.

The TS19830CS RLG also incorporates a digitally adjustable current source, allowing for accurate current regulation of the LED with no external components required. This eliminates the need for current-sense resistors that can introduce excessive power loss, which in turn reduces system cost. Furthermore, its integrated power MOSFETS and low-cost, low-saturation architecture helps reduce gate charge losses and minimizes power dissipation.

The TS19830CS RLG also features a unique digital temperature sensing capabilities, allowing it to detect temperature changes in the LED to provide enhanced thermal performance and reliability. This feature is particularly useful in applications where the LED temperature needs to be monitored, such as in exterior automotive lighting applications. Additionally, the TS19830CS RLG is also built with a low-power stand-by current mode to conserve energy, making it perfect for battery-operated systems.

Conclusion

The TS19830CS RLG series from Littelfuse is an integrated LED driver designed to provide high performance power management solutions. Its wide range of features, such as integrated protection, programmable current source, and digital temperature sensing, all make it an ideal choice for a wide range of LED-based applications. Furthermore, its low power and low-cost enable it to be used in battery-powered devices, making it a great choice for portable device manufacturers.

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