The MP3314A is a boost converter with 6 channel current sources designed to drive WLED arrays for LCD panels in virtual reality (VR) backlighting applications. The device uses peak current mode and pulse-width modulation (PWM) control to maintain boost converter regulation. The integrated 6 channels of the LED current source support a maximum current of 80mA per channel.

The MP3314A provides two PWM input signals (PWM1 and PWM2) to control the brightness of LED channel 1 to channel 3 and LED channel 4 to channel 6, respectively. The device employs a standard I²C digital interface to set the LED current, switching frequency (f_SW), frequency spread spectrum (FSS), and various protection thresholds.

The MP3314A supports a configurable switching slope and the FSS function to improve EMI performance. The device features high efficiency due to low-headroom voltage for LED regulation and the switching MOSFET’s small on resistance (R_DS(ON)).

For system reliability, the MP3314A integrates rich protections, including LED open protection, LED short protection, over-current protection (OCP), over-voltage protection (OVP), and over-temperature protection.

The MP3314A is available in a WLCSP-20 (1.7mmx2.45mm) package.