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MP3313 5.5V, 3CH Step-Up WLED Driver WLCSP-12
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pMPS MP3313 — Step-Up WLED Driver, 5.5V input, 3 channels, WLCSP-12./p
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MP3313 5.5V, 3CH Step-Up WLED Driver WLCSP-12
The MPS MP3313 is a Step-Up WLED Driver. It accepts up to 5.5 V at the input and drives 3 LED strings. It is supplied in a WLCSP-12 package.
Key Specifications
| Part Number | MP3313 |
| Function | Step-Up WLED Driver |
| Input Voltage | up to 5.5 V |
| Output Voltage | 38 V |
| Channels | 3 |
| Interface | I²C |
| Package | WLCSP-12 |
| Ordering Codes | MP3313 |
Features
- 2.7 - 5.5V Input Voltage
- 300mΩ, 42V Internal MOSFET
- 3-Channel Current Sink, Each Channel Enable/Disable Respectively
- LED Current up to 25mA in Backlighting Mode
- LED Current up to 100mA in Flash Mode
- 250µA - 25mA LED Current with ±3% Accuracy
- ±1% Typical Current Matching
- Linear or Exponential Analog Dimming
- 11-Bit Dimming Resolution
- Selectable Switching Frequency: 500kHz or 1MHz with Optional -12% Shift
Typical Application Circuit
Applications
- Smart Phones
- GPS Receivers
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 MP3313 support?
Up to 5.5 V.
Which package and ordering codes apply to the MP3313?
WLCSP-12; order codes include MP3313.
What are the defining features of the MP3313?
2.7 - 5.5V Input Voltage 300mΩ, 42V Internal MOSFET
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