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PMIC - LED Drivers

The TB62754AFNG (O,EL) is a type of Power Management Integrated Circuit (PMIC) used as a lighting driver. This highly integrated circuit supports multiple functions, including driving current control functions, making it an ideal choice for applications that require multiple distinct lighting drivers.

The TB62754AFNG (O,EL) features a constant current output, ultra-low input current and low output ripple for smooth illumination. It delivers excellent linearity and brightness control capabilities, making it well suited for illuminating multiple LEDs or for driving multiple strings of parallel LEDs.

Working Principle

The TB62754AFNG (O,EL) operates by regulating the current in LEDs connected to its output terminals. The current through the LEDs is adjustable based on the resistance of the external load resistor connected to the ADJ terminal. The LED current can be programmed by setting the voltage at the ADJ terminal.

The TB62754AFNG (O,EL) can be operated in linear mode or in pulse-width modulation (PWM) mode. In Linear mode, the LED current is adjustable linearly over a wide range based on the voltage at the ADJ terminal. In PWM mode, the LED current is adjustable by modulating the duty cycle of a square wave signal at the GATE terminal.

Applications

The TB62754AFNG (O,EL) is ideal for applications that require efficient and precise LED lighting control. Its small size and low cost make it suitable for both consumer and industrial applications. The circuit is used in a wide range of applications, including off-road vehicles, LED signage, industrial lighting and automotive lighting systems.

The TB62754AFNG (O,EL) can also be used for simple lighting functions, such as for adjusting the brightness of a single LED or for powering multiple LEDs in series or in parallel. Additionally, this circuit is capable of delivering complex functions, such as strobing and changing the color of LEDs.

Conclusion

The TB62754AFNG (O,EL) is an ideal circuit for powering high performance lighting systems. Its small size and high efficiency make it an excellent choice for consumer and industrial applications. Additionally, its multiple output channels and adjustable current settings enable it to be used for a wide range of lighting solutions.

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