TPS60255RTER

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The Texas Instruments TPS60255RTER is an LED Driver tailored for mobile phone applications. It features an integrated Low-Dropout (LDO) voltage regulator, LED current control, LED dimming and pulse-width modulation (PWM) dimming, as well as safety features including over-temperature protection, over-current protection and under-voltage lockout (UVLO). This driver is versatile, efficient, and simple to use, and can be used in a variety of situations.

The main application field of the TPS60255RTER is led backlight segment control. It can be used in mobile phones, PMPs, smart phones and other portable devices to drive LED displays. It is a current output LED driver with simple current setting and LED dimming capability, making it suitable for general-purpose LED backlighting applications. It allows for multiple LED strings to be used in devices with tight board space, such as mobile phones.

The working principle of the TPS60255RTER is simple and yet effective. It is an adjustable constant current driver that uses Pulse Width Modulation (PWM) to achieve dimming control. This means that the intensity of the LED backlight can be adjusted by producing variable on/off pulse widths. When connected to a supply voltage, the current flow is regulated by adjusting the output of the I-Source MOSFET, based on the output voltage of the voltage regulator. The high frequency operation of the MOSFET ensures that no audible sound is produced.

The TPS60255RTER provides a simple and comprehensive safety functionality. It features an integrated over-temperature (OT) protection circuit to keep the LED driver temperature under control. In addition, it provides an over current (OC) protection to guard against any sudden current surge and prevent damage. Finally, it has an under-voltage lockout (UVLO) feature which prevents the LED driver from operating if the supply voltage is lower than the set minimum voltage.

Overall, the TPS60255RTER is a highly efficient and versatile LED driver. It can be used in a variety of applications, including LED backlight segment control in mobile phones, smart phones and portable devices. It provides simple current setting, LED dimming and safety features, making it easy to use. With its low power consumption, high efficiency, and integrated safety features, the TPS60255RTER can be an excellent choice for your LED backlight applications.

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