MP3202DJ-LF-P

The MP3202DJ-LF-P is an integrated circuit that is classified as a PMIC—LED Driver. This driver has two independent high-efficiency linear LED drivers that can drive a single LED each, with a maximum current of up to 30mA per channel. The chip also has a low forward voltage of 0.3 volts, which allows it to be compatible with a wide range of existing LED technology. Additionally, the MP3202DJ-LF-P integrates a power detector to enable efficient LED brightness control with minimal circuit complexity.

Application Field

The MP3202DJ-LF-P LED driver is mainly used for LED backlighting applications for devices with small displays such as mobile phones and lightweight portable devices. The adjustable current brightness control feature makes it suitable for those applications where brightness needs to be configurable or variable. In addition, this device can be used to drive indicators, flashlights, and other less-bright lighting applications. Thanks to its integrated power detection unit, the device is capable of providing a stable current without slowing down or speeding up the LED brightness. The device also utilizes an auto fault protection system, an open-circuit protection system, and an automatic brightness regulation system to ensure maximum energy efficiency.

Working Principle

The MP3202DJ-LF-P works by controlling the power delivered to the LED through the adjustable linear drivers. The current through the LED can be set by changing the voltage applied to the sources of the linear drivers. The integrated control circuitry monitors this voltage and adjusts the resistance accordingly, which in turn adjusts the LED current for maximum brightness. The built-in power detector will then ensure that the LED brightness remains constant regardless of changes in the supply voltage. This maintains brightness as the voltage is controlled from 0.3 V to 3.3 V. Additionally, the power detector also prevents any over-current condition from occurring. This allows the LED to be powered up even during startup or when the load is suddenly changed.

The MP3202DJ-LF-P is an ideal LED driver for small displays and indicator applications, thanks to its small package. Its low forward voltage and high efficiency make it one of the best LED driver chips available today.