TLC59401RHBT

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The TLC59401RHBT is part of the Texas Instruments flex lighting solutions, which includes PMIC - LED Drivers. This PMIC integrates a boost converter and twelve constant current sinks in a single package and is ideal for higher voltage applications.

The boost converter has several features designed to improve efficiency and minimize size. The converter operates in a high efficiency quasi-DCM Flyback structure, with primary side regulation through current mode. The voltage can be externally adjusted from 4.5V to 23V and the output current can be set to 2mA, 4mA, 6mA, and 8mA depending on the CLK setting. The output is also protected from short circuits and overvoltages, which gives the user excellent reliability.

The twelve constant current sinks have a system-wide common dimming. The counter outputs can be programmed to produce four different current settings with the help of the MD setting: 1mA, 2mA, 4mA and 8mA. The counter outputs are also protected from short circuits and overvoltages, ensuring excellent reliability.

The TLC59401RHBT includes an inductor and a bulk capacitor, reducing system cost and board space. It also integrates a power good indicator which informs the user when the output voltage drops below the minimum specified level. All of these features make the TLC59401RHBT the ideal choice for cost-conscious, space-saving LED lighting applications.

In terms of operation, the TLC59401RHBT provides a simplified user interface. The user needs to provide only a supply voltage, ground, and one clock signal to the device, and then the device can take care of the LED driver and indicator wiring in applications with multiple LED channels. Additionally, the device provides a low current level detection pin, which can be used to detect a low VDD supply detected condition.

The TLC59401RHBT is a great choice for any LED lighting application requiring higher voltage, low cost, and small form factor. It has excellent efficiency, protection, and simple user interface, making it a great option for applications with multiple LED channels.

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