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MP3367 3.5-36V, 6CH Max.150mA/Ch Boost WLED Driver QFN-24
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pMPS MP3367 — Max.150mA/Ch Boost WLED Driver, 3.5-36V input, 150 mA output, 6 channels, QFN-24./p
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MP3367 3.5-36V, 6CH Max.150mA/Ch Boost WLED Driver QFN-24
The MPS MP3367 is a Max.150mA/Ch Boost WLED Driver. It operates from a 3.5 V to 36 V input, is rated for 150 mA and drives 6 LED strings. It is supplied in a QFN-24 package.
The MP3367 is a step-up converter with six channel current sources, designed to drive white LED arrays as backlighting in small-to-mid-size LCD panels.
Key Specifications
| Part Number | MP3367 |
| Function | Max.150mA/Ch Boost WLED Driver |
| Input Voltage | 3.5 V to 36 V |
| Current Rating | 150 mA |
| Channels | 6 |
| Interface | I²C |
| Package | QFN-24 |
| Ordering Codes | MP3367 |
Features
- 3.5V to 36V Input Voltage Range
- Six Channels with Max 150mA per Channel
- Internal 100mΩ, 50V MOSFET
- Programmable Up to 2.2MHz fSW
- External Sync SW Function
- Multi-Dimming Operation Mode through PWM Input, Including: o Direct PWM Dimming o Analog Dimming o Mix Dimming with 25%/12.5% Transfer Point
- 15000:1 Dim Ratio in PWM Dim at fPWM ≤ 200Hz
- 200:1 Dim Ratio at Analog Dim through PWM Dim Signal Input
- Excellent EMI Performance, Frequency Spread Spectrum
- I2C Interface
Typical Application Circuit
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 MP3367 support?
3.5 V to 36 V. The rated output is 150 mA.
Which package and ordering codes apply to the MP3367?
QFN-24; order codes include MP3367.
What are the defining features of the MP3367?
3.5V to 36V Input Voltage Range Six Channels with Max 150mA per Channel
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