NCR402UX

NCR402UX belongs to PMIC (Power Management IC) - LED Drivers category. It is an intelligent high-performance and high-linearity LED driver specifically optimized for LED backlight and interior lighting applications.

The NCR402UX integrates a proprietary multiplexer technology that combines multiple, single-channel outputs into a single pin to minimize the device footprint. The included voltage regulator and dedicated thermal protection further improve the system reliability and robustness.

It also supports adjustable current limit, fast transient turn-off, adjustable pre-charge, and serial adjustability of multiple outputs.

NCR402UX Application Field

NCR402UX is suitable for all kinds of LED backlight and interior lighting applications. It can do single channel drive, 2 the channel drive and 4 channel drive, or adjust channel count as according to customer requirements.

The NCR402UX\'s low-voltage operation and its high integration features make it an ideal choice for some special applications like flexible display backlights and flat panel displays.

NCR402UX Working Principle

The NCR402UX working principle is based on Pulse width modulation (PWM). A high-speed oscillator triggers a PWM circuit, which results in a voltage output with a constant duty cycle. The outputs of the multiplexer are current-limited, allowing LED current adjustments via external resistors.

The output of the device can be adjusted to a wide range of PWM frequencies, from less than Hz to more than 1 MHz. Furthermore, each output can be controlled individually, allowing compatibility with a wide range of LED types.

The NCR402UX features an adjustable voltage regulator which allows the user to adjust the output voltage to match the LED forward voltage or a specific application requirement.

The NCR402UX also features a dedicated thermal protection circuit to protect the device when it exceeds a certain temperature limit. This allows the device to withstand temperatures up to +150° C without any issues.

Overall, NCR402UX is an excellent choice for LED backlight and interior lighting applications, due to its integrated intelligent multiplexer, adjustable current limit circuit and dedicated thermal protection features. It can be easily integrated into any application and is compatible with a wide range of LED types.