TLC5971RGET

Voltage - Supply (Max):	5.5V
Base Part Number:	TLC5971
Supplier Device Package:	24-VQFN (4x4)
Package / Case:	24-VFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	--
Dimming:	--
Frequency:	--
Current - Output / Channel:	60mA
Voltage - Output:	17V
Series:	--
Voltage - Supply (Min):	3V
Number of Outputs:	12
Internal Switch(s):	Yes
Topology:	Shift Register
Type:	Linear
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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PMIC - LED Drivers: TLC5971RGET Application Field and Working Principle

The TLC5971RGET is a light-emitting diode (LED) driver integrated circuit (IC) chip implemented by Texas Instruments and introduced in 2019. The device is used for driving addressable and non-addressable LED strips. It is one of the most reliable driver ICs in the market, offering an impressive level of efficiency, flexibility and cost-effectiveness.

Features of TLC5971RGET

The TLC5971RGET features a wide operating temperature range of -40°C to +125°C, a working voltage range of 1.8V to 3.9V and an input voltage of up to 5.5V. The device also provides fast slew rate and high output current; it is capable of delivering up to 14mA per output channel with a maximum total output current of 352mA. Additionally, the device supports Pulse-Width-Modulation (PWM) dimming and has integrated diagnostics and safety features.

Applications of TLC5971RGET

The TLC5971RGET’s versatile, high-performance features make it suitable for a wide range of LED-based applications, such as LCD TV backlighting and mobile phone displays. It is also commonly used in LED lighting control and automotive lighting, including LED turn signals and brake lights.

Working Principle of TLC5971RGET

The TLC5971RGET consists of a driver IC and several discrete components. The IC contains multiple analog, logic and memory circuits, while the discrete components provides additional current amplification, rectification and protection.The IC converts the input signals into corresponding output signals. The logic circuits act as internal communications networks and control the behavior of the chip, while the analog circuit is responsible for the conversion of input signals into output signals. The rectification circuitry takes the input DC power supply and outputs a synchronized and regulated DC voltage for driving the loads.When the TLC5971RGET receives an input signal, it will convert it into an output that matches the input. The output signal is then sent to the addressable and non-addressable LED strip through the discrete components. The driver IC also contains a memory that stores the configuration settings, allowing for a tailored experience for each LED strip.

Conclusion

The TLC5971RGET from Texas Instruments is capable of driving a wide variety of LED-based applications, with impressive power efficiency and cost-effectiveness. The device is highly flexible, supporting Pulse-Width-Modulation (PWM) dimming, and is remarkably reliable. Additionally, the device allows for tailored settings through its integrated memory, providing a better overall user experience.

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