MP3314A
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MP3314AGC-Z MP3314AGC-P
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The EV3314A-C-00A evaluation board is designed to demonstrate the capabilities of the MP3314A, a boost converter with 6 channel current sources that drives WLED arrays for LCD panels in virtual reality (VR) backlighting applications.
The MP3314A supports a 3V to 30V input voltage (VIN) range, and an output voltage (VOUT) up to 43V. The device uses peak current mode control and pulse-width modulation (PWM) control to maintain boost converter regulation. The 6 integrated LED current source channels support up to 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 (fSW), 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 a low-headroom voltage for LED regulation and the switching MOSFET’s small on resistance (RDS(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.
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