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MP3314A 3-30V, 80mA, 6CH Boost WLED Driver WLCSP-20
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pMPS MP3314A — Boost WLED Driver, 3-30V input, 80 mA output, 6 channels, WLCSP-20./p
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MP3314A 3-30V, 80mA, 6CH Boost WLED Driver WLCSP-20
The MPS MP3314A is a Boost WLED Driver. It operates from a 3 V to 30 V input, is rated for 80 mA and drives 6 LED strings. It is supplied in a WLCSP-20 package.
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.
Key Specifications
| Part Number | MP3314A |
| Function | Boost WLED Driver |
| Input Voltage | 3 V to 30 V |
| Current Rating | 80 mA |
| Channels | 6 |
| Interface | I²C |
| Package | WLCSP-20 |
| Ordering Codes | MP3314A |
Features
- 6 Channels with Maximum 80mA/Channel
- Integrated 50V, 130mΩ, On Resistance (RDS(ON)) Low-Side MOSFET (LS-FET)
- 3V to 30V Input Voltage (VIN) Range
- Up to 43V of Output Voltage (VOUT)
- 187.5mV LED Regulation Voltage at 20mA
- 2% ILED Accuracy, <3% LED Current (ILED) Matching at 20mA
- Selectable Switching Frequency (fSW): 312kHz, 625kHz, or 1250kHz
- I2C Brightness Control
- Manual Mode and Direct Pulse-Width Modulation (PWM) Dimming
- PWM1 and PWM2 Input Signals to Control Channel 1 to Channel 3 and Channel 4 to Channel 6, Respectively
Typical Application Circuit
Applications
- Virtual Reality (VR) Displays
Design Notes
- Channel-to-channel current matching sets backlight uniformity; check the matching spec at the current you will actually run.
- In boost topologies the OVP threshold must clear the worst-case forward voltage of the longest string, including temperature and binning spread.
- Keep PWM dimming above 200 Hz to stay clear of visible flicker, and away from the audio band if the product has a speaker.
- Size the inductor and output capacitor for the string current ripple, not the total LED current.
Common Questions
What input voltage does the MP3314A support?
3 V to 30 V. The rated output is 80 mA.
Which package and ordering codes apply to the MP3314A?
WLCSP-20; order codes include MP3314A.
What are the defining features of the MP3314A?
6 Channels with Maximum 80mA/Channel Integrated 50V, 130mΩ, On Resistance (RDS(ON)) Low-Side MOSFET (LS-FET)
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