LP55231SQX/NOPB

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The LP55231SQX/NOPB is a power management integrated circuit (PMIC) specifically designed for driving LEDs. It is a self-contained device capable of powering five channels of LEDs, each with a selectable range of current from 5 mA to 25 mA. The PMIC includes a programmable constant current output driver as well as an adaptive power path for each channel, eliminating external components for a compact solution. An on-board voltage regulator enables a wide input voltage range from 2.7V to 5.5V, and contains programmable timers for adjusting the blinking patterns of the LEDs.

This PMIC – LED driver can be used to drive LEDs for a variety of application fields. It is particularly suitable for applications that require higher brightness with both higher current and precision controlling. It has been used to drive LED backlighting in displays, and programmable LED lighting used in industrial and entertainment lighting. It also has been used in automotive interior and exterior lightings, terminal backlights, and camera LEDs.

Working Principle

At the core of the PMIC – LED driver is a digital lamp post controller (DLPC). This DLPC is a digital light dimming and management module that can adjust the brightness and color of LEDs through computer programming as well as pulse width modulation (PWM). A dedicated terminal is enables for programming, and a variety of LED lighting effects can be achieved based on the user’s desired patterns.

For this particular LP55231SQX/NOPB PMIC – LED driver, five independent banks are capable of driving 5-25 mA of LED current. The current can be adjusted in 25 mA steps by connecting an external resistor for each channel. In addition, each channel includes a 16-bit PWM dimmer for brightness modulation and a timer for automated blinking patterns. Furthermore, the PWM frequency can be adjusted to optimize the lighting effects.

The device also includes an on-board voltage regulator, precise current programming, and thermal and short circuit protections, providing a robust and reliable power management solution. It is also compatible with various microcontrollers (MCUs) and field programmable gate arrays (FPGAs) for driving LEDs.

Conclusion

In conclusion, the LP55231SQX/NOPB PMIC – LED driver is a highly integrated solution for driving LEDs with precision control. It has been widely used for driving LED backlighting in displays and for a variety of other application fields, such as industrial and entertainment lighting, automotive and terminal backlighting, and camera LEDs. The comprehensive protection features and compatibility with various MCUs and FPGAs make it an ideal choice for many applications.

The specific data is subject to PDF, and the above content is for reference