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MP3384L 3-25V White LED Driver QFN-16
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pMPS MP3384L — White LED Driver, 3-25V input, QFN-16./p
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MP3384L 3-25V White LED Driver QFN-16
The MPS MP3384L is a White LED Driver. It operates from a 3 V to 25 V input. It is supplied in a QFN-16 package.
The MP3384L is a step-up converter to control up to 4 white LED strings for LCD backlighting.
Key Specifications
| Part Number | MP3384L |
| Function | White LED Driver |
| Input Voltage | 3 V to 25 V |
| Interface | PWM |
| Package | QFN-16 |
| Ordering Codes | MP3384L |
Features
- Highly Efficient
- 3V-to-25V Input Voltage Range
- 50V Maximum Step-Up Voltage
- Balanced Driver for 4 WLED Strings
- 2.5% Current Matching Accuracy Between Strings
- Selectable Switching Frequency: 625kHz or 1.25MHz
- PWM Dimming
- Programmable Over-Voltage Protection
- Under-Voltage Lockout
- Open and Short LED Protection
Typical Application Circuit
Applications
- Notebook Computers
- Netbooks and Tablet Computers
- Digital Picture Frames
- Hand-Held Terminal 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 MP3384L support?
3 V to 25 V.
Which package and ordering codes apply to the MP3384L?
QFN-16; order codes include MP3384L.
What are the defining features of the MP3384L?
Highly Efficient 3V-to-25V Input Voltage Range
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